LMS Test.Lab Solutions Guide

Transcription

1 LMS Test.Lab Solutions Guide A Siemens Business

2 LMS Test.Lab The integrated solution for noise and vibration testing The pressure is on. Whether you are a vibro-acoustics expert for a large aerospace company or a one-person testing department at a white goods manufacturer, today s market circumstances require creative problem-solving when it comes to product testing. The rules have changed: products must be all-encompassing. Consumers want products with personality, products that offer uncompromising quality, products that offer eco-friendly and sustainable solutions all without paying a fortune. And today as the world of engineering goes digital, noise and vibration engineers are also challenged to do more with less and work more upfront in the design process. Long gone are the days when you could simply add some damping insulation to mask a disturbing noise. This is where LMS Test.Lab steps in. Designed to make testing more convenient and efficient, LMS Test.Lab is the solution that testing departments count on to increase the test productivity while maintaining the utmost quality and ultimately achieving a higher return on investment from existing testing facilities. 2 LMS Test Lab

3 LMS Corporate Profile 4 LMS Test.Lab 8 LMS Test.Lab Desktop LMS Test.Lab Desktop Standard LMS Test.Lab Desktop Advanced LMS Test.Lab Acoustics LMS Test.Lab Octave Testing LMS Test.Lab Acoustic Material & Component Testing LMS Sound Power Testing LMS Test.Lab Exterior Pass-by Noise Testing LMS Test.Lab Interior Pass-by Noise Testing LMS Test.Lab Sound Quality LMS Test.Lab Virtual Car Sound LMS Test.Lab Array-based Holography and Focalization LMS Test.Lab High Definition Acoustic Camera LMS Test.Lab Sound Intensity Testing and Analysis LMS Test.Lab Interior Sound Source Localization LMS Test.Lab Structures LMS Test.Lab Impact Testing LMS Test.Lab Spectral Testing and LMS Test.Lab Source Control LMS Test.Lab Operational Deflection Shape and Time Animation LMS Test.Lab Modal Analysis LMS Test.Lab Operational Modal Analysis LMS Test.Lab MIMO Sine Sweep Testing LMS Test.Lab MIMO Stepped Sine Testing LMS Test.Lab MIMO Normal Modes Testing LMS Test.Lab Ground Vibration Testing (GVT) LMS Test.Lab Modification Prediction LMS Test.Lab Rigid Body Properties Calculator LMS Test.Lab Rotating Machinery LMS Test.Lab Signature Testing LMS Test.Lab Order Tracking LMS Test.Lab Time Data Acquisition and Processing LMS Test.Lab Turbine Testing LMS Test.Lab Torsional Vibration Analysis LMS Test.Lab Mobile Testing LMS Test.Lab Angle Domain Processing LMS Test.Lab Transfer Path Analysis LMS Test.Lab Single Reference Transfer Path Analysis and Airborne Source Quantification LMS Test.Lab Multi-reference Transfer Path Analysis LMS Test.Lab OPAX LMS Test.Lab Time Domain Transfer Path Analysis LMS Test.Lab Vibration Control LMS Test.Lab Vibration Control - Standard LMS Test.Lab Vibration Control - Advanced LMS Test.Lab Environmental LMS Test.Lab MIL-STD Testing LMS Test.Lab Space Application Testing LMS Test.Lab MIMO Triax Random Control LMS Test.Lab Data Reduction Premium LMS SCADAS 102 LMS Engineering Services 110 LMS Customer Services 114 LMS Test.Lab 3

4 LMS, engineering innovation partner of manufacturing companies worldwide LMS helps customers get better products to market faster and turn superior process efficiency into key competitive advantages. With a unique combination of 1D and 3D simulation software, testing systems and engineering services, LMS tunes into mission critical engineering attributes, ranging from system dynamics, sound quality, comfort and durability to safety, performance and power consumption. LMS has the experience, unique competences and integrated solutions that can empower an innovative way of engineering one that supports manufacturers in the race to get products out right-the-first-time. The results are dramatically shortened cycle times, superior products that truly excite customers as well as reduce development costs and risks. Thanks to our technology, dedicated people and 30 years of engineering experience, LMS has become the partner of choice for more than 5,000 leading manufacturing companies worldwide. LMS operates through a network of more than 30 subsidiaries in Europe, the Americas and Asia. Addressing a complete range of critical engineering attributes A unique combination of simulation software, testing systems, and engineering services Structural integrity System dynamics Vehicle dynamics Comfort Noise and vibration Sound quality Durability Safety Performance Power management Fuel economy and emissions Fluids Electromechanical systems Thermal management 1D simulation software to model and analyze multi-domain system behavior 3D simulation software to simulate and optimize functional performance Integrated solutions for test-based engineering, refi nement and validation Engineering services for troubleshooting, design refi nement, technology transfer and co-development A solid partner with global experience A global engineering innovation partner for more than 5,000 manufacturing companies 30 years of experience in mission critical engineering disciplines An international approach to customers with more than 30 offi ces in Europe, the Americas and Asia Continuous R&D investment backed by a strong fi nancial track record LMS helps meet the challenges of every engineering department - tight development schedules, budget restrictions and higher product expectations 4 LMS Test Lab

5 LMS helps manufacturing companies Compete with innovative designs Innovative design and radical new product concepts represent a solid basis for growth and profi tability. Winners of the product innovation race often combine a talent to mobilize knowledge and creativity with product development and go-to-market speed. Manufacturing companies rely on LMS solutions to eliminate non-value-added tasks, front-load key design decisions early in the development phase, and explore new product concepts in the shortest possible time. LMS can also improve active system performance engineering - a key innovation driver in mechanical product design. Deliver the expected brand values Creating innovative and attractive products is not just about producing visually attractive designs. Mission critical attributes need to be refi ned from the early design stage onwards. Using LMS simulation, engineering teams can quickly analyze a multitude of design options to fi nd the right balance. This approach results in better decisions during the early development stages and helps engineer product performance to refl ect the core brand values that create passion for the product. Expand and renew the product portfolio Today s consumer expects choice: products that directly address niche markets and specifi c customer requirements. With more models and options, the development process needs to be dramatically shortened not just to save costs, but also to cope with the increasing number of product releases. LMS helps manufacturing companies speed up their development process by analyzing reallife design performance much faster and much earlier in the process as well as accelerating time-consuming physical prototype testing. Optimize overall product quality LMS offers the right solution mix to successfully set targets, detect and adjust design fl aws in the early concept stages, accurately assess and refi ne product performance using validated virtual models, and effi ciently validate the fi nal design using advanced prototype-testing techniques. LMS customers not only measure their return on investment in terms of faster time-to-market and reduced development costs, but also in terms of improved product quality and reduced warranty and product recall issues. LMS Test Lab 5

6 LMS, a unique portfolio of engineering innovation solutions LMS Imagine.Lab AMESim The integrated platform for 1D multi-domain system simulation LMS Imagine.Lab AMESim offers a complete 1D simulation suite to model and analyze multidomain, intelligent systems and predict multi-disciplinary performance. Model components are described using validated analytical models that represent the system s actual hydraulic, pneumatic, electric or mechanical behavior. All the user has to do is assemble pre-defined components from validated libraries to create a physics-based model of the system. Using this functional system mock-up, LMS Imagine.Lab AMESim accurately simulates intelligent system behavior long before detailed CAD geometry is available. LMS Virtual.Lab The integrated solution for 3D functional performance simulation LMS Virtual.Lab offers an integrated software suite to simulate and optimize the performance of mechanical systems for structural integrity, noise and vibration, durability, system dynamics, ride and handling, dynamic motion and other attributes. LMS Virtual.Lab covers all the process steps and required technologies to perform an end-to-end design assessment in each key discipline. Using LMS Virtual.Lab, engineering teams can build accurate simulation models, simulate their real-life performance, quickly assess multiple design alternatives and optimize designs before prototype construction. LMS Test.Lab, LMS Test.Xpress and the LMS SCADAS family An unrivaled suite of test-based engineering solutions A complete solution for test-based engineering, LMS Test.Lab includes solutions for rotating machinery, structural and acoustic testing, environmental testing, vibration control, reporting and data sharing. LMS Test.Xpress, a no-compromise noise and vibration analyzer, combines the operational simplicity of a traditional analyzer with the high-speed quality performance of an advanced noise & vibration measurement system. The data acquisition hardware from the LMS SCADAS family ranges from compact mobile units, autonomous smart recorders up to high channel count laboratory systems. The LMS SCADAS Durability Recorder offers a dedicated mobile durability data acquisition solution, which can be complemented with extensive durability processing tools. All systems are tightly integrated with the LMS Test.Lab and LMS Test.Xpress software and optimally tuned to meet the specific needs of durability, noise and vibration engineering. 6 LMS Test.Lab

7 LMS Engineering Services Solving critical engineering challenges LMS Engineering Services counts on its globally minded team of over 100 multi-lingual engineers to help customers optimize product designs and address tough engineering challenges. The LMS Engineering Services team has more than 25 years of experience solving engineering challenges that manufacturers across various industries must meet head-on. Their truly multidisciplinary engineering experience ranges from noise, vibration and durability to system dynamics, vehicle handling and safety. The LMS Engineering competence centers in Europe, the USA and Asia combine state-of-the art testing facilities with an extensive simulation infrastructure. LMS simulation and testing experts are ready to address critical engineering projects and make the difference between successful product launches and costly repairs or even failures. The LMS approach to functional performance engineering can truly be a strategic competitive advantage for every company. LMS Customer Services A partnership for your success LMS supports its customers with engineers who not only understand the hardware and software, but also master the related engineering applications. Extensive training, seminars, and on-site services help our clients technical staff gain and maintain their software and system know-how. LMS offers a complete portfolio of professional services, including full installation management, on-site training and support, and continuous knowledge transfer. The final result is a win-win situation: an optimal return on hardware and software investment in terms of optimized engineering team productivity and up-to-date systems with the latest technology and application developments. LMS Test.Lab 7

8 LMS Test.Lab The integrated solution for noise and vibration testing LMS Test.Lab is a complete, integrated solution for test-based engineering, combining high-speed multi-channel data acquisition with a full suite of integrated testing, analysis and report-generation tools. LMS Test.Lab is designed to make testing more efficient and more convenient for each and every user. It is the ideal tool for testing departments that need to be future-focused: offering the right balance between ease of use and functional flexibility. LMS Test.Lab significantly increases a test facility s productivity, delivering more reliable results, even when the availability of prototypes is dramatically reduced. A complete portfolio for noise and vibration testing LMS Test.Lab offers a complete portfolio for noise and vibration testing, including solutions for acoustic, rotating machinery, and structural testing, environmental testing, vibration control, reporting and data management. With its unified interface and seamless data-sharing capability between different applications, LMS Test.Lab offers users tremendous efficiency gains with the added benefit of real ease-of-use. In addition, the LMS Test.Lab solution can handle standard, repetitive tests as well as more advanced troubleshooting in one single software and hardware package. This guarantees maximum scalability and optimal investment protection. Built-in productivity With its unique workflow-based interface, LMS Test.Lab sets new standards for ease-of-use, productivity and data consistency. The software naturally follows the test campaign process, guiding the user through the different steps and suggesting optimal settings for measurement and analysis parameters. Engineers really appreciate LMS Test.Lab s streamlined integration with the LMS SCADAS data acquisition product family. With one single hardware and software platform, they can cover all laboratory and in-field tests as well as recorder-based testing jobs. Embedded analysis during data acquisition speeds up the testing process and guarantees the right data right from the start. LMS Test.Lab permits on-the-spot test result validation against targets and traces the root cause of a problem directly to the source making sure that the testing time is used in the best possible manner. Right to the source of noise and vibration issues With LMS Test.Lab, there is no beating around the bush with trialand-error troubleshooting. LMS Test.Lab guides users directly to the source of the problem using comprehensive, integrated analysis capabilities and LMS unique source-transmitter-receiver methodology. Users of all levels can trace the fundamental cause of a problem and solve it effectively, cost-efficiently and quickly. In short, it is a measurement and analysis tool that makes an engineer s life easier Adapted to the changing world of testing Virtual models have no value unless they accurately represent real life. This requires high-quality modeling techniques and accurate load data. By testing existing components and benchmarking competitive products for target setting purposes, LMS Test.Lab is extensively used to front-load data into the simulation process. It provides loading information and feedback to update virtual models, and is systematically used to provide test-derived component and subassembly models that are too complex to model virtually from scratch. Easy to integrate into LMS Virtual.Lab and LMS Imagine.Lab as well as other simulation packages, LMS Test.Lab provides the critical support to making virtual simulation efficient and realistic. 8 LMS Test.Lab

9 LMS Test Lab: the complete portfolio for noise and vibration testing An integrated one-platform, scalable suite for noise and vibration testing Solutions for rotating machinery, structural and acoustic testing, environmental testing, vibration control, reporting and data management A workfl ow-based user interface delivers optimal ease-of-use and productivity Combining quick visualization, powerful analyses and easy reporting From standard qualifi cation testing to advanced troubleshooting and engineering in a single solution Complete integration with the LMS SCADAS data acquisition hardware family for mobile, recorder and lab testing Protect your investment with future-ready technology and techniques LMS Test Lab 9

10 LMS Test.Lab Covering a wide range of industry applications Aerospace engineering Aerospace manufacturers are faced with the challenge of designing systems and components that have to be safer, more reliable, lighter, cheaper to operate, deliver better passenger comfort and have less environmental impact than their competitors. On the spatial side, manufacturers must design larger and more complex satellites at a faster rate while guaranteeing that the payload can withstand extreme launch and operation conditions. Although virtual prototype simulation has dramatically accelerated the development processes, only testing can fulfill the final sign-off and provide the feedback to validate assumptions and calibrate virtual models. LMS Test.Lab offers dedicated aerospace solutions: Ground Vibration Testing (GVT) to ensure the structural integrity of the aircraft or spacecraft and other critical components Operational modal analysis to assess the behavior of aerospace structures during operational conditions Dynamic testing and qualification of jet engines Large-scale modal survey testing for qualification and acceptance testing on spacecrafts, satellites and instruments Automotive Engineering The biggest issue at the moment on the minds of NVH testing experts in the automotive industry is best summarized as productivity and efficiency. Despite the increased use of virtual simulation, test departments are actually faced with an increased volume of testing work they need to complete. The explosion of product variants and increased testing scenario complexity largely compensates for the routine testing tasks eliminated by simulation. In addition, automotive companies are continuing to shorten their product development cycle times, resulting in fewer prototypes and therefore - less time for testing. LMS Test.Lab has been designed to meet these challenges and offers a complete set of tools and applications for automotive NVH engineering: Engine noise and vibration testing Torsional vibration measurements Gear whine and rattle testing Break squeal testing Driveline sensitivity testing Noise source identification Sound power testing Acoustic intensity mapping Noise source ranking Interior noise assessment Sound quality Pass-by noise testing Acoustic material testing Transfer path analysis Operational deflection shapes Modal testing and analysis Operational modal testing and analysis Component vibration qualification testing Heavy machinery In the face of unrelenting global market pressures, heavy machinery companies must deliver innovative products that outperform the competition and meet or exceed customer expectations. LMS has developed a scalable portfolio of solutions that help all types of companies in all types of industries create true competitive advantages in their specific markets. This might include controlling resonant vibrations of high-speed complex machinery to ensure consistent production quality, maximum fatigue resistance and minimum radiated noise productivity without compromising operator safety. Or it might be assisting with regulation safety and environmental compliance for new machine designs. Whether it s a tight development schedule or tough quality or safety standards causing an issue, LMS Test.Lab offers tried-and-true testing solutions for all types of manufacturing industries. 10 LMS Test.Lab

11 Wind energy and power generation To certify a new wind turbine, manufacturers must ensure full system reliability under real-life operating conditions. Durability must be assessed to provide a 20-year lifetime with low operation and maintenance costs. Noise emissions must remain within prescribed tolerances. On top of that, the control system must guarantee clean voltage at constant frequency. LMS has worked extensively with wind turbine manufacturers and suppliers to help design top-class products. For wind turbine manufacturers, LMS Test.Lab offers a complete solution to measure and optimize the vibration and noise emitted by the gearbox, generator and blades. LMS Test.Lab is used to identify propagation of noise and vibrations throughout the complex structure and find optimal solutions for noise radiation and excessive vibrations. Besides wind energy, LMS expert solutions are used in other power generation sectors such as load identification and foundation analyses for power plants; noise and vibration studies for gas turbines and pipelines as well as research and development and on-site troubleshooting. Off-road, construction and agricultural vehicles Off-highway manufacturers must continuously increase operation performance and optimize the operating limitations of their products. Giant mining trucks must run faster and carry the maximum load capacity for maximum efficiency. Excavator manufacturers constantly improve the reach and agility of their products, while maintaining optimal safety and stability. And agricultural tractors and machines are designed for ever-tougher operating conditions, increasing environmental standards and more demand for product customization without forgetting comfort. Driver comfort, which includes reducing interior noise levels and vibrations mostly in extreme conditions, is becoming a distinctive brand differentiator and one that is increasingly being dictated by regulations and industry norms. LMS Test.Lab has been adopted by many off-highway manufacturers to cover these specific noise and vibration issues. Consumer and business electronics Manufacturers of white goods, home and office appliances face extremely short development cycles, an increasing number of design variants and ever-higher customer expectations. Minimal noise levels are critical success factors for many commercial products like dishwashers, washing machines, PCs and even copiers. Other consumer electronic brands such as loudspeakers, home cinema systems and mobile phones differentiate via the quality of their acoustic performance. And the increased complexity of sophisticated electronic control units that interact with mechanical parts makes it challenging to guarantee a safe and high-quality operation throughout the product s lifetime. LMS Test.Lab helps all types of manufacturers pro-actively meet these stringent requirements when completing brand new product designs. LMS Test.Lab 11

12 LMS Test.Lab A complete portfolio of testing solutions LMS Test.Lab Desktop The LMS Test.Lab Desktop is not just the launch platform of all other LMS Test.Lab applications; it is an essential application for everyone in the organization management, engineers, and technicians - who need to access your work, process data, and make reports themselves. Distributed test preparation and post-processing frees up the expensive test cell and shows the process-centric LMS Test.Lab approach. LMS Test.Lab Acoustics LMS provides the acoustic engineer with a powerful set of highly integrated tools. From the signal conditioning of microphones and interfacing with digital heads to the acquisition of sound power levels, real-time octaves, and the latest high-tech tools for sound quality engineering, LMS Test.Lab Acoustics conforms to the latest international standards and engineering practices. LMS Test.Lab Structures Structural testing used to be a long and complex process. No longer. With LMS Test.Lab Structures, technicians can perform large-scale modal surveys in less than a day. LMS is renowned for its modal testing experience - from impact testing of small structures to campaigns using many shakers and hundreds of measurement channels. LMS Test.Lab carries on and extends that tradition while LMS Test.Lab PolyMAX provides a state-of-the-art modal parameter estimator and expert-like automatic modal pole selection (AMPS) - a combination that results in superbly fast and user-independent results. 12 LMS Test.Lab

13 LMS Test.Lab Rotating Machinery Troubleshooting and product refinement demand a comprehensive array of tools: waterfall mappings to globally characterize the problem; order tracking for an in-depth investigation; time data to experience the sound; a complete set of processing functions, including angle domain processing based on data sampled at fixed angles; specialized modules to help assimilate and visualize the vast amounts of data that are generated. Whether you are measuring on an engine dyno, in a vehicle on the proving ground or in the field near a large turbine, LMS Test.Lab is always the perfect choice. LMS Test.Lab Transfer Path Analysis LMS Test.Lab is packed with enhanced features that promise to help every test department save time and resources. With the broadest portfolio of Transfer Path Analysis solutions on the market, LMS can help customers tackle issues from every possible angle - from simple systems with a single soft-mounted source to complex structures with multiple and variable mounted sources. LMS Test.Lab Vibration Control LMS Test.Lab Vibration Control is an entry-level vibration control solution with high-end performance. It combines optimal ease of use with the performance and reliability of an advanced system. The system offers accurate closed-loop shaker control and a maximum of built-in safety mechanisms, which minimize the risks of damaging costly test items. User guidance and secure automation capabilities deliver maximum productivity and enable testing teams to meet critical deadlines. LMS Test.Lab Environmental LMS Test.Lab brings you the most advanced and complete range of environmental testing solutions on the market - a powerful, high-speed multichannel vibration control system to measure, monitor and control pre-launch vibration tests on multi-billion euro satellites. LMS Test.Lab 13

14 LMS Test.Lab Desktop Transforming test data into effective reports 14 LMS Test Lab Desktop

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16 LMS Test.Lab Desktop Transforming test data into effective reports Data management is crucial in any testing department. The amount of data that is produced is enormous, as is the investment it represents. Converting, visualizing and analyzing test results is not only time-consuming, but often also requires specific application knowledge. Moreover, as reporting results and sharing information between departments is indispensible, minimizing time spent processing data and creating reports greatly contributes to the efficiency of an entire organization. LMS Test.Lab Desktop is the perfect solution to efficiently visualize, analyze, report, and share results with others. It transforms test data into concise reports. It helps reduce time spent on converting data between formats and avoids losing vital information in the process. With LMS Test.Lab Desktop, information can be effortlessly accessed and distributed across different departments. 16 LMS Test Lab Desktop

17 General in usability, focused in application Collecting data from practically any source, manipulating them in any way, and then creating great reports is straightforward with LMS Test.Lab Desktop. Anyone with a basic knowledge of Windows operating systems can use it. Browse over and into data files using a familiar Explorer-like interface. Just click on a function and the data automatically loads into the display. Search for data using context strings - such as the person who performed the test, the object configuration, the measurement date, or other particular details. You can even bookmark important data so you can find it easily weeks later. Data can be accessed without knowing which particular application program was used to acquire them or how it operates. With LMS Test.Lab Desktop, it is no longer necessary to learn another code just to make a report. Total transparency LMS Test.Lab Desktop works transparently with data from any source. There is no need to copy, convert or even know where the data is located. Data acquired by legacy systems can easily be compared to something measured today using the latest equipment. You can access competitive benchmarks acquired by other departments or compare the status of the latest prototype with the results of the previous model measured years ago. Being able to access all these data in a transparent way means you can leverage investments you have made in the past. With the support of the ASAM/ODS standard, Test.Lab Desktop makes it possible to access and exchange data across platforms without losing vital descriptive information. Reveal hidden noise and vibration problems Noise and vibration problems are often caused by subtle events: the troublesome third order that is nearly but not quite masked by background noise, the local mode just at the point where you need to connect a sensitive component, or the annoying rattle that develops over time. To discern intricate details, you need powerful graphical displays with flexible limit settings, a choice of viewing angles, color scales and line formats. Optimized by years of LMS experience, the LMS Test.Lab Desktop graphics provide everything you need for noise and vibration engineering. Document and organize your data LMS Test.Lab Desktop helps document the huge amount of data that a typical test team generates every week. You can add key information to raw data, such as operator details, test object descriptions and testing conditions for data traceability, as well as digital images showing the actual test setup. Better documentation means your data will retain its value long after the testing phase has been completed. As the amount of test data grows, it is crucial to organize and keep track of it. You need a system that makes data annotation consistent - one that relates measurement results to product structure and speeds up data search and retrieval. You can extend LMS Test.Lab Desktop with LMS Tec.Manager, which is developed for engineering data organization and fully integrated with LMS Test.Lab. Make compelling reports and bring them to life LMS Test.Lab Desktop makes it easy to create compelling reports. You can combine trace, waterfall, and surface-shaded animations along with labels, lines, and logos to conform to corporate standards. All Microsoft Office features are available to highlight crucial elements. Once you have a template, LMS Test.Lab Desktop automatically fills in data-specific details - such as channel number, axis limits, and cursor read-outs - as the report is being produced. Copy and paste work is eliminated and consistency within the company guaranteed. Reports can be made in Microsoft Word and PowerPoint, and saved in PDF and HTML e-reporting standards. With OLE/ActiveX technologies, your documents are not static reports, but dynamic entities so that other readers can manipulate data formats and animation viewpoints to suit their particular requirements. Organize printing reports with minimum effort When you need to report large data sets based on the same test, batch reporting and organizer facilitates structured printing of large data files according to multiple pre-defined plot formats, created in Microsoft Office applications, including Active Pictures. Intuitive ways of ordering data are available to sort your data according to various print templates. Both electronic document printing and printing to a printer are supported. Compare and understand Often insight only comes by comparing data - which may not be easy when measurements were made by different people, incompatible equipment or even at different times. With LMS Test.Lab Desktop you can align spectra with different resolutions into power spectral densities (PSDs), scale them, change acoustic weightings, smooth curves, and perform a host of other operations. The system automatically takes care of unit conversions so you can never make a mistake overlaying data measured in millimeters, meters, or inches. The original data sets remain unchanged and are never overwritten. Reference curves stored together with display layouts immediately tell you whether you meet the target or not. Advanced cursor functions help you quickly scroll through the curves, jump to peaks and read out values. You can even make comparisons by listening to the data. Easily create convincing test reports and presentations Reproduce company standard plots using Microsoft Office Gain test insight through application-tuned graphics Access all LMS Test.Lab, LMS Test.Xpress, LMS CADA-X, Roadrunner and Pimento data Easily share your test information with others LMS Test.Lab Desktop 17

18 LMS Test Lab Desktop Standard LMS Test.Lab Desktop - Standard provides all the standard tools for efficient, testbased NVH engineering. It is the dedicated starting point to run most applications of the LMS Test.Lab product family. Based on the Microsoft Windows look, LMS Test. Lab Desktop has a familiar feel and guides the user step-by-step throughout different test procedures. It is designed for optimal ease-of-use, flexibility and overall efficiency. LMS Test.Lab Desktop - Standard has a workflow-based user interface. Clear and straightforward displays help users perform measurements quickly and accurately. Templates launched from your desktop describe complete testing procedures including measurement setups, layouts with reference curves and operator directives. LMS Test.Lab Desktop - Standard helps engineers maintain an overview of the entire test procedure at all times. LMS Test.Lab Desktop - Standard provides full documentation of the test project and straightforward data organization. Data is easy to find and every relevant document or file can be linked to a specific project. The navigation tree and flexible displays greatly improve data analysis. Since users have a complete overview of results during measurements, hidden problems can be detected faster. Share data and results and build engineering insight. LMS Test.Lab Desktop - Standard can be customized to specific company standards and helps users create reports fast and efficiently. Within a few hours, an untrained technician or engineer will run the most advanced tests, compare acquired data and publish reports on the web. LMS Test.Lab Desktop Standard has numerous import and export possibilities: export to Universal File, SDF, Matlab, Dynaworks, wav and Text; import from Universal File, Matlab, Dynaworks, STL, TEAC TAFFmat, wav. Nastran and ncode DAC are optional. Easily browse and navigate through large amounts of data. Features Offers simultaneous access to different applications and multiple projects Automatic setup of operatorspecific environment Automatic data selector accesses all LMS data formats Numerous possibilities for data annotation, viewing, interpretation, and conditioning Creation and management of displays Optional ASAM-ODS interface to server and ATF/ATFX file format Benefits Easy data traceability for clear interpretation of test conditions and results Windows explorer-like navigator for easy data access, selection, filtering and sorting Convenient import and export of different data formats Flexible reporting and powerful communication of test results Create any display you like, format curves, and apply cursors and processing functions to data. LMS Test.lab Desktop features advanced data search capabilities. 18 LMS Test Lab Desktop

19 LMS Test Lab Desktop Advanced LMS Test.Lab Desktop Advanced is the gateway to advanced post-processing options, such as signature processing, operational defl ection shapes (ODS), time animation, time data analysis, and modal analysis. They appear together in the LMS Test.Lab Desktop Advanced workfl ow bar, so you can effortlessly switch between various options and displays. All functionalities of LMS Test.Lab Desktop Standard are also available in the advanced solution. LMS Test.Lab Desktop Advanced offers solutions for faster and easier data management and post-processing. The data calculator provides a dedicated formulabased calculator and various functions to post-process measured data. Multiple data blocks can be calculated simultaneously with only one formula entry. The resulting data are available for visualization and can be saved in the project. The data block editor offers a table-based interface to build up your own data block; the resulting data block is shown and updated on a 2D display as you are editing. It is possible to start from an existing block to speed up the process. Any data block can be saved as a reference block or used in the data calculator. Powerful communication through compelling reports. When performing benchmark studies or testing structures under different operating conditions, large amounts of data are obtained and need to be reported. Batch reporting facilitates organized printing of large data quantities according to multiple pre-defi ned Microsoft Offi ce plot formats, including Active Pictures. For customizing the fi nal results, users can fi x the absolute scale of the printed items and choose between electronic document printing or printing to a printer. The order or frequency cut of a waterfall diagram can immediately be examined by an advanced cursor that shows the interactive cut on a 2D display by moving the cursor on the diagram. Without processing the waterfall diagram, the cursor-driven processing helps speed up your fi ndings. LMS Test.Lab Desktop Advanced makes it possible to listen to data and improve your analysis. Audio replay is an integrated part of the solution. It further secures the testing environment by locking parameters during a test to protect against misunderstandings about test conditions, test parameters and accidental parameter manipulation. Data post-processing made easy using the LMS Test.Lab Data Calculator function. LMS Test.Lab Desktop Advanced is the powerful layer of the modularly organized LMS Test.Lab product suite and covers many generic functions such as loading applications, user interface control and standard confi gurability. Features Contains all features of LMS Test.Lab Desktop Standard LMS Test.Lab Data Calculator and LMS Test.Lab Data Block Editor functions Cursor-driven processing for fast waterfall diagram analysis Controlled data access with parameter locking function Batch reporting and absolute scale formatting for organized and customized printing Audio replay of recorded data Benefits Secured testing environment Optimized test and analysis time Speed up reporting procedure Audio Replay: the possibility to play back recorded audio data makes comparison and analysis easy. Cursor-driven processing for fast waterfall analysis. LMS Test Lab Desktop 19

20 LMS Test Lab Windows Automation Support Option LMS Test.Lab Windows Automation Support helps users set up connections between external programs and LMS Test.Lab applications. This option requires LMS Test.Lab Desktop Advanced. If you work with a development environment that supports Windows Automation, it is possible to customize, extend, automate or integrate LMS Test.Lab. Direct and monitor LMS Test Lab Standard LMS Test.Lab solutions can be driven from external applications. This is interesting for customization as well as automation. All these actions can be performed externally: Open an application Activate worksheets Initiate actions by pushing buttons from outside, e.g. starting a measurement Show/hide worksheets Change parameter values Access display functionality LMS Test.Lab events and measurement values can be continuously observed from within an external application, which means that remote monitoring of a measurement process can be implemented. Also, an event generated at the end of a measurement session can be used to trigger another process like sending an to the operator. Analysis extensions When using Windows Automation, it is possible to extend a LMS Test.Lab application with in-house algorithms. These algorithms can take their input data directly from LMS Test.Lab, without having to export the data to a file. For further data processing or storage, the results can be introduced into the LMS Test.Lab software in exactly the same way. Integration with other software A measurement system like LMS Test.Lab often needs to be connected to external control systems, like a test rig environment. Through Windows Automation, LMS Test.Lab and the control system can be integrated into a configuration, in which either system can act as master or slave. LMS Test.Lab can be joined with e.g. Microsoft Excel, where data from LMS Test.Lab can be exported to Excel for further statistical analysis and charting. It is also possible to add ActiveX components into the LMS Test.Lab user interface. In this way, control of external devices can be closely integrated within the workflow of LMS Test.Lab, although it remains a separate process. 20 LMS Test Lab Desktop

21 Features Drives and monitors LMS Test.Lab solutions from external applications Integrates in-house algorithms Integrates LMS Test.Lab with external software Benefits Increase productivity by customizing and automating repetitive jobs Integrate your own acquisition procedures Easy-to-learn and well-known programming language Using LMS Test.Lab as toolbox The opposite of extending LMS Test.Lab with in-house algorithms, is to complete an in-house software package with functions coming from LMS Test.Lab. Thanks to Windows Automation, LMS Test.Lab functions and building blocks (e.g. pictures) can be used within external programs, while keeping data and control in the external program. The integrated Robot Interface lets you control the robot motion and sound intensity measurements. Data post-processing made easy using the LMS Test.Lab Data Calculator function. Cursor-driven processing for fast waterfall analysis. LMS Test.Lab Desktop 21

22 LMS Test.Lab Acoustics Scalable solutions for spot-on sound testing and analysis 22 LMS Test Lab Acoustics

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24 LMS Test.Lab Acoustics Scalable solutions for spot-on sound testing and analysis Product sound and sound quality are key aspects of product perception. How a product sounds plays a critical role in conveying the right message about its functionality, comfort, overall brand image and its quality. Regulations and competitive pressure have forced manufacturers to keep noise levels within limits and meet increasingly stringent sound standards. Sound engineers look for more productive testing and analysis solutions to quickly and effectively identify root causes of existing sound issues and help them efficiently design products that transmit the right brand message. Answering the call for a variety of acoustic techniques LMS Test.Lab Acoustics offers a complete and unique suite of software and hardware solutions for acoustics testing and analysis. Specific domains include straightforward acoustic analysis, material and component testing, sound power and pass-by noise testing for sound source localization, vibro-acoustic engineering, and sound quality and brand sound engineering. Scalable according to project requirements, each solution offers task-specific advantages in terms of return on investment. For more complex root cause analysis, LMS experts can provide advanced acoustic and vibro-acoustic engineering tools and services. Getting to the bottom of it For years, sound engineers have been experimenting with acoustic techniques to find the best possible way to meet sound requirements and solve sound issues. A first step is to gain an in-depth understanding of how sounds are composed and which aspects contribute to it. Once the sound attributes are identified, they can be linked to physical components. LMS Test.Lab Acoustics address a wide variety of challenges that sound experts and engineers daily face. LMS acoustic solutions throughout the product development cycle Benchmarking and brand sound engineering Sound design and target setting Scalable advanced techniques for product refi nement, sound engineering and troubleshooting Qualifi cation and certifi cation In-fi eld and in-house certifi cation and testing Acoustic testing is important to comply with noise emission legislation, but also to improve competitive brand positioning and overall customer satisfaction Acoustic techniques for spot-on sound testing and analysis Acoustic analysis: multi-channel sound level meter and octave analysis Material and component testing Sound power and certification measurements Pass-by noise testing Sound source localization (sound intensity, beam-forming, holography & focalization) Sound quality and brand sound engineering Trasfer Path Analysis and acoustic source quantification 24 LMS Test Lab Acoustics

25 Meeting sound objectives LMS Test.Lab Acoustics integrates all the basic functionalities that engineers require to assess sound. The solution s portfolio covers a wide variety of tasks such as tracking overall sound pressure levels, determining spectral content, or create metrics to quantify the perceived level or articulation index to evaluate speech intelligibility. So whether you are an acoustics expert who relies on the latest analysis techniques or an occasional user who needs high quality results, LMS Test.Lab Acoustics is a perfect all-around acoustic measurement system. Selecting the right materials and components The way in which acoustic material absorbs and reflects sound can have as much impact on the design as the choice of the material itself. LMS Test.Lab Acoustics offers a full spectrum of tools to study and examine the sound behavior of various materials and components and help determine how they would affect the overall sound of the final product. Conforming to sound power standards Declared sound power is a key brand driver in many competitive sectors. Meeting or missing certification standards can make all the difference between a successful product launch and a failure. The LMS Test.Lab Acoustics portfolio provides several sound power solutions appropriate for multiple standards and is adaptable to industry and customer-specific testing procedures for maximum productivity. Supporting pass-by noise standards Pass-by noise regulations are becoming increasingly stringent. Test requirements in the latest standards are much more complex and require more intelligent systems to perform productive and reliable tests. LMS Test.Lab Acoustics offers a complete range of pass-by noise solutions for testing standard environments for certification or engineering refinement. Shaping the right sound quality LMS Test.Lab Acoustics offers a variety of solid solutions to help determine the best possible sound, wherever required in the development process cycle. Scalable to every need, LMS Test.Lab Acoustics can be used for a variety of sound quality applications. Discovering the origins of sound To significantly save time and resources, LMS has designed a number of cutting-edge sound source localization solutions, including high-definition acoustic cameras, to increase overall testing productivity as well as other techniques that meet different required criteria such as frequency range, accuracy, cost and time pressure. Pinpointing the root cause Efficient design modification in complex mechanisms can only be obtained with an in-depth understanding of the system. LMS is known for its vibro-acoustic engineering expertise. Finding the root cause of noise issues through transfer path analysis can help users make important design decisions, saves time and costs and improves the entire development cycle. Customers around the world count on LMS Test.Lab solutions to reach the right acoustic design objectives. LMS Test.Lab Acoustics 25

26 LMS Test Lab Octave Testing Octave testing is an indispensible element of acoustics and vibration engineering, and part of many noise evaluation tests against predefi ned targets or legislative standards. The LMS Test.Lab platform supports octave testing for the largest variety of test scenarios. Whatever your needs are, LMS Test.Lab offers an easy-to-use and powerful platform for acoustic qualifi cation testing. The broad analysis and application range of the LMS Test.Lab Octave Testing solutions includes: Low or high channel count octave analysis Real-time or off-line analysis Analysis of stationary, transient or tracked against RPM or speed events, in parallel with narrow band FFT analysis Octave analysis with parallel throughput Full 1/1 octave up to 1/24 fractional octaves With LMS Test.Lab Octave Testing, acquisition and analysis of multi-channel octave data is made easy. It provides linear and exponential averaging methods for acquiring octave data in stationary or transient operating conditions, against specifi ed time or rpm intervals, and for monitoring dynamic, static and operational parameters. It provides online acquisition and visualization of the most important functions such as octave cuts, overall sound pressure levels, or equivalent sound pressure levels (Leq). Calculations from physical measured channels using mathematical operations are provided by the online derived mathematical channels. Further functionalities of the LMS Test.Lab platform enhance ease-of-use and analysis fl exibility. The data block calculator supports straightforward mathematical operations on individual octaves blocks. The LMS Test.Lab Signature Data Post-processing option helps analyze and post-process complete waterfalls of tracked octave data. It contains a comprehensive list of functions for further processing like e.g. waterfall averaging and calculating octave sections. Features Octave filtering according to ANSI S1.11 and IEC standards 1/1, 1/3, 1/12 and 1/24 octave filters Sound level meter compatible results including Leq according to IEC Psycho-acoustic metrics available online and during post-processing Real-time processing on the calculated octave data with derived channels Tracking technology suited to transient or stationary applications Benefits Provides effective and reliable noise evaluation according to the required standards Results compatible with octave analyzers or analogue instruments through filter benches Real-time parallel processing for online validation of test results Maximum flexibility with off-line processing for further analysis at any time Online psycho-acoustic metrics give immediate information related to human sound perception. Real-time parallel processing provides simultaneous acquisition of multiple date types. Flexible handling of low and high channel count applications via tight integration of software and hardware. Measure and evaluate the product s acoustic performance. 26 LMS Test Lab Acoustics

27 LMS Test Lab Acoustic Material & Component Testing Reducing the undesired or harmful effects of sound is a goal for every sound engineer. One of the most popular techniques consists in blocking the sound transmission path using passive acoustic material treatments. Passive acoustic barriers are made of heavy and/or dense material in combination with porous, open-celled absorptive materials that stop the sound energy passing through the structure. The LMS Test.Lab product family includes several solutions to determine acoustic properties of materials or even complete components like doors, panels or muffl ers. Features Absorption testing in impedance tube according to standards ISO & ASTM E1050 Sound transmission loss on mufflers including sample diameter correction Sound transmission loss according to standard ISO 140 (room method) Advanced transparency testing using quantitative holography techniques The impedance tube is a common instrument for material absorption tests. LMS provides a complete and easy-to-use solution for the entire process including phase calibration. Results include normal incident sound absorption, refl ection factor, acoustic impedance and admittance ratio. An extended version of the impedance tube can also be used for sound transmission loss testing on components like muffl ers. In this case, a 4-microphone matrix method is used. The same setup can also help determine the sound transmission loss of material samples. Room methods require a larger investment in infrastructure but offer several advantages compared to the impedance tube test, such as larger sample testing, a non-homogenious object characterization, or a more realistic random incident sound fi eld. The LMS Acoustics solutions are used for absorption and sound transmission loss testing according to international and in-house standards. For in-situ transparency testing on components like a car hood, a cockpit dashboard or a fi rewall, LMS Test.Lab Sound Intensity or LMS Test.Lab Holography applications are a perfect fi t. These quantitative engineering methods provide maximum understanding of weak acoustic spot location. Benefits Efficient tools for benchmarking and compliance testing Impedance tube design covers wide frequency range from 50 to 5700 Hz LMS Test.Lab absorption testing is compatible with impedance tubes from other vendors Tight integration in the LMS Test.Lab platform for product optimization Determine material acoustic properties for use in simulation tools (LMS Virtual.Lab) The design of the impedance tube provides testing from 50 to 5700 Hz. The workflow displays graphical information about the setup for maximum convenience. Understanding sound transmission loss on mufflers. Acoustic transparency testing of components using holography or intensity techniques. LMS Test Lab Acoustics 27

28 LMS Sound Power Testing Sound power is a measure of the acoustic power generated and radiated by a machine or tool. This measure characterizes and quantifi es the sound source, independently from the environment. Sound power measurements are used to certify tools to specifi c ISO standards. Beyond certifi cation on local markets and tool labeling according to regional regulations, accurate sound power measurements may have a striking impact on export sales and branding strategies. It is crucial therefore not to exceed the allowed sound power level in many industries. Moreover, lower sound power often represents a competitive advantage. The LMS Sound Power solutions deliver the required testing effi ciency for increased testing and quality control. Beyond accurate measurements, LMS tools and services help reach sound power targets with advanced techniques such as airborne source quantifi cation and sound source localization. Sound power testing is used across a wide variety of industries such as white goods, offi ce equipment, hand-held power tools or off-highway vehicle industries. The software flexibility permits real-time processing as well as visualization of sound power and other data during the acquisition. The following techniques are employed in sound power testing: Pressure methods based on ISO 3741, ISO 3744, ISO 3745, ISO 3746 Intensity methods according to the ISO 9614 series, often used for in-situ testing Non-standardized array-based methods like holography Test procedures depend on the used technique. Every industry segment has particular requirements that are described in specifi c industry standards. The European directive for noise emission (2000/14/EC) applies to various outdoor equipment and off-highway vehicle industries and requires them to label their equipment (noise marking) or to comply with maximum values (noise limiting). In the automotive industry, engine and powertrain test cells are used to measure sound power at varying speeds. In the computer and business equipment industry, sound power has to be measured according to ISO 7779 and ECMA standards. In the white goods and domestic appliances industries, the IEC standard for sound power applies. For HVAC equipment, sound power level rating according to ARI 270 (Air Conditioning & Refrigeration Institute) and ARI 575 are required. Testing on washing machines requires a long measurement time. LMS Test.Lab supports online sound power level calculcation over any time interval. The LMS package includes commercial off-the-shelf solutions for fast and effi cient testing according to most standards. The LMS Test.Lab platform further offers the fl exibility to tune sound power testing to specifi c industry requirements. Features Commercial off-the-shelf or customizable solution for industry or customer-specific requirements Focus on productivity for every industry standard Integrated reporting with export to MS office Benefits Accurately and efficiently measure sound pressure levels A large range of ISO and local standards are supported, according to specific industry requirements Single platform for sound power level measurements to advanced sound engineering tasks Sound power testing in engine test cells is done using intensity, sound pressure and holography techniques. Compliance with EC/2000/14 is mandatory for many outdoor equipment manufacturers. LMS provides solutions for both quantification and engineering. 28 LMS Test Lab Acoustics

29 LMS Test Lab Exterior Pass-by Noise Testing A highly adaptable and scalable pass-by noise testing solution, LMS Test.Lab Pass-by Noise can be tuned to precise testing requirements and expanded as needed. LMS Pass-by Noise is based on an extremely reliable hardware and software solution, which combines state-of-the-art LMS SCADAS data acquisition and telemetry with the easyto-use LMS Test.Lab Pass-by Noise module. The test result is fast and accurate data compliant with both international and local standards. The system is suitable for one or two operators depending on the preferred test methodology. Either way, intuitive point-and-click interfaces clearly guide the user through the entire pass-by measurement process: from pre-testing to reporting. After a test run, all the data is immediately available for trackside viewing. This instant access makes it possible to decide on the spot whether or not a vehicle or component is compliant. A track-based exterior pass-by noise setup. LMS Test.Lab Pass-by Noise supports a wide range of standards including ISO 362 and the ISO 362:2007 revision, SAE J366, SAE J986, SAE J1470, F76A US and Trias20. Specifi c component-related standards for exhaust noise (EEC 93/97, ISO 5130, Trias 20) and tires (Trias20) are supported for more in-depth testing. It is easy to integrate additional standards as they become available. LMS Test.Lab Pass-by Noise system can be confi gured for dedicated user-defi ned procedures and specifi c requirements. For more standard usage, LMS offers three typical confi gurations: Track-based exterior pass-by noise in which the LMS SCADAS acquisition system is placed near the test track. This method requires minimal vehicle instrumentation. In-vehicle exterior pass-by noise where the LMS SCADAS acquisition system is placed in the vehicle to acquire additional measurement channels for more indepth analyses. For advanced engineering tasks, large amounts of data must be captured near the track and on the vehicle. For such tasks, both systems can be combined and synchronized using the built-in LMS SCADAS GPS receivers. An in-vehicle exterior pass-by noise setup with an LMS SCADAS acquisition system. Features Complete standard support including the revised ISO 362:2007 and SAEJ 1470 from setup to reporting Online octave monitoring and sound pressure levels according to track distance and measurement status indicators Driver Aid: In-vehicle graphical interface for monitoring speed, rpm, position and weather conditions One-person operation Fully certified system (hardware: ISO norm; position sensing: ISO 362 requirements) Additional channels and throughput data can be saved for further engineering analysis Benefits Complete acquisition and reporting package for outdoor pass-by noise homologation and engineering Optimizes testing and analysis time by combining validation and engineering testing with a highend, post-processing platform Effective and reliable noise evaluation according to required standards Open platform for easy implementation of new standards Online feedback on measurement progress and quality High reliability reduces errors and accelerates productivity Fast standards generation with single button operation Graphic track layout sheet provides clear overview of all elements of the measurement setup. For each run, immediate feedback is given wether test conditions comply with the limits for the selected passby standard. LMS Test Lab Acoustics 29

30 LMS Test Lab Interior Pass-by Noise Testing The LMS Test.Lab Interior Pass-by Noise solution is a popular testing method to simulate pass-by noise using a roller bench in a semi-anechoic chamber. Primarily a lab-based engineering tool, this interior pass-by noise solution supports pass-by noise standards and brings numerous advantages to the testing process. To start, test engineers are not dependent on weather conditions and this increases productivity and keeps the testing process right on schedule. Working in a controlled lab environment facilitates the testing process as a whole and makes the run and re-run processes associated with vehicle modifi cations easy to reproduce with 100% reliability. Engineers will fi nd the LMS Test.Lab Interior Pass-By Noise an ideal method for troubleshooting tough issues and fi nding solutions quickly. Designed for one-person operation, this solution guides users step-by-step through the process from primary data acquisition all the way to customized reporting. The software calculates the virtual vehicle position based on the provided speed from the dyno. From this information, the overall sound pressure level (OAL) is calculated as a function of position just like an exterior test. Interior tesing provides a controller environment for pass-by noise refinement. The user can select from two methods to calculate the OAL. The fi rst method is based on the energy measured at each microphone location. The second method synthesizes a time signal based on all measured microphones. This time signal is equivalent to a time signal acquired from external pass-by noise measured microphones without the Doppler shift. Users can listen to this synthesized time signal as well as use it for OAL-level calculators and order calculations among others. Since the vehicle is not moving, the user can measure additional signals on the vehicle as well. This gives a better correlation analysis using the additional measurements and the far-fi eld PBN measurements, so that the engineer gains more insight into what components are contributing most. By combining the in-room pass-by noise solution with other LMS engineering solutions for sound source localization and source ranking, the in-room pass-by noise solution can drastically reduce development times. Graphic track layout sheet provides clear overview of all elements of the measurement setup. Features Compliant with pass-by noise standards for cars, light vehicles and trucks Complete support from setup to automatic reporting Microphone position validation Time-data calculation corresponding to outdoor microphone positions Benefits Full control of environmental conditions Productivity increases One-person operation Virtual microphone results for listening validation and subjective evaluation Additional analysis on physical microphone positions and outdoor microphone positions Reports can be easily customized and directly made in MS Word. The solution is often combined with sound source localization and source ranking techniques to gain maximum understanding of the contributing sources and paths. 30 LMS Test Lab Acoustics

31 LMS Test Lab Sound Quality The sound of an engine, the tonal components of a turbojet aircraft or the acoustic performance of an electrical shaver all represent sound quality aspects. As the perception of product sound is considered an important attribute that defi nes its character, sound quality efforts are no longer limited to noise reduction. Shaping the right product sound is an intricate task that requires numerous steps and tools during the product development process. For acoustic benchmarking and sound quality assessment, the LMS Test.Lab platform supports sound engineers for objective and subjective evaluation. Psycho-acoustics metrics include loudness, sharpness, roughness and fl uctuation strength. Those metrics are complemented with others indexes used for acoustic comfort qualifi cation, such as articulation index or speech interference. In addition, algorithms help detect prominent tones and modulations. Results can be processed in real-time or off-line, depending on user requirements and metrics type. In the troubleshooting phase, the LMS Test.Lab Audio Replay & Filtering module provides sound engineers with a very powerful fi ltering-during-replay tool. This tool offers a proven and effective method to immediately and precisely detect annoying sound components. For sound replay in the fi eld, a standard soundcard is suffi cient. For listening sessions that require aurally-accurate, i.e. calibrated and equalized sound reproduction, LMS supports specifi c analogue and digital 3rd party replay hardware. Products of the LMS SCADAS acquisition system family are compatible with any kind of digital or analogue binaural head. For convenient sound quality modeling or fi ne-tuning at any stage of the product development process, LMS Test.Lab Sound Diagnosis provides a complete, unique and highly interactive environment that helps sound engineers create and quantify the exact sound they are looking for. Engineers can evaluate the human perception of the recorded sound through a large range of global and tracked psycho-acoustic metrics on user-defi ned segments of the recorded time histories. After spectral analysis, the main origin of the sound characteristics can be diagnosed starting from any type of display. Users listen to multiple data traces and, at the same time, analyze sounds with real-time fi ltering and metrics calculation. An unlimited number of fi lters can be applied interactively. Data from different measurement runs can be organized and combined for batch processing. Selection and processing parameters can be saved as template procedure to speed up future analysis. The LMS SCADAS systems support both analogue and digital artificial heads. The replay & filter capability is a very efficient tool to quickly identify annoying sound components by integrating the human ear in the analysis chain. In addition to offering increased effi ciency and data consistency, LMS Test.Lab Sound Diagnosis integrates sound quality evaluation into the overall noise and vibration testing processes. Features Extensive listening and filter capability for subjective evaluation Replay controls: single loop, looped or toggled between sounds Psycho-acoustic and other sound quality related metrics Support of analogue and digital binaural heads Online graphical editing of filters Benefits Complete solution for full development process: from benchmarking and assessment to in-field and laboratory troubleshooting Helps identify all positive and negative sound attributes Accurate sound diagnosis at any stage of the development process LMS Test.Lab Sound Diagnosis is a complete, unique and highly interactive environment to quantify and shape sounds. Aurally accurate replay for subjective evaluation of different sounds. LMS Test Lab Acoustics 31

32 LMS Test Lab Virtual Car Sound A handy and multi-purpose tool, LMS Test.Lab Virtual Car Sound can be used for general sound design and targetsetting as well as advanced vibro-acoustic troubleshooting in the vehicle refinement stage. The LMS Test.Lab Virtual Car Sound solution is mainly applied to vehicles, but can be helpful when analyzing issues found in other rotating machinery products and components. Starting from experimental or simulation data, a sound quality equivalent model (SQE) is generated that decomposes the interior car noise into powertrain, road/tire, and wind noise. This sound decomposition methodology has been tested and confirmed by a jury. The SQE model is equivalent in quality and features to the original sound. For troubleshooting and targetsetting applications, the model can be refined with a TPA model to study the different structure-borne and airborne path contributions. This virtual vehicle can be driven interactively under different operating conditions. Speed, rpm, throttle, gear and brake can be adjusted. While driving, users can listen to the generated sounds for a subjective evaluation. For objective evaluation and targetsetting, FFT-based spectral analysis is complemented with real-time sound quality metrics, like loudness, articulation index and roughness. The partial contribution of the different sound sources and paths is also displayed in real-time. This interactive driving mode gives maximum freedom to the sound engineer to simulate realistic operating conditions. For more project flexibility, this mode comes with a drive-by-file mode for repeatable drive profiles and an external control mode. This could be a CAN-bus or serial port interface that provides the hook-up of an external vehicle simulator. Interior noise can be decomposed into powertrain, road/tire, and/or background noise by a one-click operation. All model components orders, octave bands, FRFs, accelerations, mounts, forces can be modified in real-time for evaluation of what if -scenarios. Modifications include peak removal, level increase/decrease, phase corrections, and randomized phasing. Click-free switching between modified models provides straightforward A/B comparison under any operating condition. During the refinement stage, time is limited and one might only have limited data to build the model. LMS Test.Lab Virtual Car Sound has been designed with these situations in mind. Even with limited data, a SQE model can be created. LMS Test.Lab Virtual Car Sound can handle both monaural and binaural data. Displays give feedback on the sound path contributions in real-time. Features Highly interactive real-time multimedia engineering environment A single measurement suffices to simulate sound under different driving conditions One-click interior noise decomposition from time data recordings (TDF files) Data measurement, decomposition, SQE model creation and simulation on one single platform Supports LMS Test.Lab and other models Driving modes include: free interactive driving, drive control by file and drive scenarios Benefits Evaluate sound at all development stages, with CAE and experimental data input Set targets on a component level Save time by building models using limited operational data that has been automatically processed Perform transfer path optimization using objective and subjective sound quality criteria Save simulated profiles in time data files for off-line analysis Driving modes can be controlled via keyboard, mouse or steering wheel for subjective sound quality analysis. Feedback is given in real-time on active and masked, inaudible orders. 32 LMS Test Lab Acoustics

33 LMS Test Lab Array-based Holography and Focalization The LMS Test.Lab Array-based Holography and Focalization solution includes a number of unique and innovative techniques that increase localization accuracy and applicable frequency range. For sound source localization, near-fi eld acoustic holography offers the best possible accuracy across the frequency spectrum as well as ample quantitative data for intensity and (partial) sound power contribution calculations. The LMS Test.Lab Acoustic Source Localization technology can be used in both stationary and non-stationary situations. To localize sources, microphone measurements are usually taken along a near-fi eld plane. Due to interference and other unwanted effects, the measured pressure will not reveal the real sources. To localize these, very specifi c sound source localization processing is required. It is this processing that one fi nds in the LMS Test.Lab Arraybased Holography and Focalization solution. The upper frequency limit is determined by the distance between measurement points or microphones. To extend the upper frequency limit without additional measurements or higher channel counts, a focalization processing is applied. This is an economic and effi cient way to double the upper frequency limit without any extra time or hardware investments. Covering a complete object with microphones requires a signifi cant investment in measurement hardware. To limit the investment, it is possible to measure in patches for either stationary or transient applications. The data from different runs is combined in a unique way so that a larger surface can be covered with less hardware. To increase overall testing productivity LMS also provides other techniques for sound source localization. The latest LMS techniques include sound intensity (supporting pressure-pressure and pressure-velocity probes) and high-defi nition acoustic cameras. Features Highest spatial resolution for all sound source localization techniques in low frequencies Intelligent combination of multiple measurement patches for both stationary and non-stationary signals Propagation pressure to intensity and pressure Propagation for a single frequency, frequency range or octave band Animated displays show intensity/ pressure as a function of frequency/time Benefits Yields accurate sound power calculation and source ranking results Cost-efficient technology for sound source localization on slow engine runups using measurement patches Cost-efficient technology to double upper frequency limit Linear array makes cost effective measurements in patches possible. State-of the art processing supports identification of multiple sources with surpression of ghost images. Typical applications include sound radiation and qualification on engines and powertrains. Tracked sound source localization provides analysis in different operating conditions on engines. LMS Test Lab Acoustics 33

34 LMS Test Lab High Definition Acoustic Camera When time is critical, only an extremely fast solution will do. This is why engineers count on the brand new LMS Test.Lab High Defi nition Acoustic Camera solution. It is an extremely fast sound source localization method for both stationary and non-stationary sounds. Featuring a beam-forming technique that permits source localization from longer distances, it is an excellent solution for both large or awkward structures and tight deadlines. The advantage of beam-forming is that it provides spot-on localization of high frequencies. The spatial resolution (i.e. the localization precision) is inversely proportional to frequency and distance. Since the LMS Test.Lab High Defi nition Acoustic Camera has been extended with close-to-the-source or near-fi eld focalization, the precision level is doubled compared to traditional beam-forming techniques accounting for the high defi nition aspect of the acoustic camera. Traditional beamforming cannot be used close to the source; therefore the LMS Test.Lab High Defi nition Acoustic Camera automatically applies a different focalization process for these measurement types. A complete and integrated solution: multi-channel array, hardware and software platform for acquisition, interactive analysis and multimedia reporting. The LMS Test.Lab High Defi nition Acoustic Camera solution includes a circular microphone array with a wide-angle camera for clear pictures of the full surface even at short distances from the source. The circular microphone array, available with a standard confi guration of 36 or 54 microphones, also includes a laser that automatically measures the distance to the source. The LMS Test.Lab High Defi nition Acoustic Camera solution provides accurate localization up to 20kHz. Analysis results and reporting can be executed in time, frequency and order domains. Results can be documented using pictures as well as animated video. As part of the analysis process, it is also possible to listen to the identifi ed hot spots. To increase overall testing productivity, LMS also provides other techniques for sound source localization according to different required criteria such as frequency range, accuracy, cost and time pressure. The latest LMS techniques include sound intensity (supporting pressure-pressure and pressure-velocity probes) and acoustic holography (a holography solution combined with focalization). LMS Test.Lab High Definition Acoustic Camera uses unique, innovative yet robust processing. Features Unique LMS Test.Lab hardware and software for both far-field and near-field measurements Automatic distance-to-source measurement using built-in infrared sensor Animation of pressure as a function of time/frequency Reporting includes pictures and video Benefits Extremely quick results Applicable for stationary and transient applications Double-precision compared to traditional beam-forming solutions One solution for both far-field and near-field measurements for clear pictures even close to the measurement surface. State-of-the art algorithms provide precise localization of multiple sources with different levels over the entire surface. 34 LMS Test Lab Acoustics

35 LMS Test Lab Sound Intensity Testing and Analysis Sound intensity measurements reveal the actual flow of acoustic energy and are a vital part of a variety of acoustic testing applications, including source ranking and source localization analysis to identify and quantify critical sound sources. These measurements help engineers decide which countermeasures are most efficient. Sound intensity measurements are also often used as a troubleshooter to detect acoustic leaks and hot spots. Acoustic researchers further use LMS Test.Lab Sound Intensity Testing and Analysis to determine the acoustic properties of various materials and components. Stationary sound intensity techniques are very common. They can be performed in-situ, which requires a limited investment since dedicated measurement facilities are not actually necessary. This unique advantage makes the technique extremely practical for ISO-based sound power testing according to ISO 9614 standards. The LMS Test.Lab workflow concept guides the operator through the entire testing and analysis process. Both expert and non-expert users can easily create 3D geometries, check the amplitude and phase calibration, conclude measurements and validate data for a thorough analysis. When the test has been completed, LMS Test.Lab Sound Intensity Testing and Analysis offers numerous possibilities for automated and customized reporting included animated 3D views. Scanning test objects in-situ ensures maximum testing flexibility. LMS Test.Lab Sound Intensity Testing and Analysis supports traditional pressurepressure intensity probes, but can also integrate more innovative pressure-velocity probes from Microflown Technologies. The main advantage of the pressure-velocity probe approach is that it covers the complete acoustic frequency range. Sound intensity testing is labor intensive. To significantly save time and resources, LMS provides robotized solutions. Moreover, to increase overall testing productivity, LMS also supplies other techniques for sound source localization according to different criteria such as frequency range, accuracy, cost and time pressure. The latest LMS Test.Lab sound source localization techniques include high-definition acoustic cameras (a beam-forming solution combined with focalization) and acoustic holography (a holography solution combined with focalization). User guidance is provided to determine amplitude, phase calibration, pressure-residual intensity index during the actual intensity measurement. Features 2D and 3D visualization using colored mesh displays Simultaneous narrow-band FFT and time-based octave intensity results Amplitude and phase calibration ISO 9614 field indicator support Benefits Measure and analyze test objects in-situ, without requiring specific testing facilities Flexibility for both ISO-related testing and troubleshooting tasks One-person operation for acoustics experts and novices Multiple features guarantee data quality and analysis flexibility to handle simple as well as highly complex geometries Graphical selection of critical zones with instantaneous calculation of particular sound power levels. Reports include advanced 3D visualization with LMS Test.Lab Active Pictures and vectors. LMS Test Lab Acoustics 35

36 LMS Test Lab Interior Sound Source Localization Interior sound source localization in closed cavities such as truck cabins, car interiors, aircraft cockpits or trains has been a challenge for many years because of the sound fi eld complexity. LMS Test.Lab Interior Sound Source Localization provides a unique solution for these highly complex interior sound source localization measurements. It features a 3D acoustic camera and includes the latest innovations to localize acoustic leaks, disturbing wind noise, and squeak and rattle in diffi cult environments. The LMS Test.Lab Interior Sound Source Localization solution with 3D acoustic camera uses a solid sphere to capture sound pressure levels. The innovative source localization processing takes advantage of real geometry information of the cavity, obtained either from an external fi le or by scanning the cavity with the sphere to get more accurate results. Using geometry information greatly improves result accuracy. Moreover, geometry information provides users with a very clear visualization of the results for powerful and convincing reports. Images captured by the built-in camera can be merged with the geometry information to obtain surprisingly realistic 3D models. The solution offers full 3D results with one measurement. The LMS Test.Lab Interior Sound Source Localization solution with 3D acoustic camera can be used for both stationary and transient applications, as well as for correlated and uncorrelated sources. Features Solid sphere design for improved dynamic range and spatial resolution Maximizes accuracy by using actual geometry information Innovative solution improves data quality in low, mid and high frequency ranges 3D visualization can be completed with pictures to obtain 3D photo-realistic models Benefits Easy-to-use and short learning curve Best-of-class results and visualization Wide application range with one solution Very fast sound source localization technique Solid sphere with plug-and-play microphones and camera. 3D photo-realistic views for clear analysis and convincing reports. Interactive analysis capability includes state-of-the-art localization and quantification. Wide range of applications for interior sound source localization in planes, trains, cars or truck cabins. 36 LMS Test Lab Acoustics

37 LMS Test.Lab Acoustics 37

38 LMS Test.Lab Structures Straight-to-the-point structural engineering 38 LMS Test Lab Structures

39 LMS Test Lab Structures 39

40 LMS Test.Lab Structures Straight-to-the-point structural engineering Structural testing used to be a long and complex process involving quite extensive trial-and-error and time-consuming test setups. This is no longer the case. With LMS Test.Lab Structures and the LMS SCADAS system, test engineers perform large-scale modal surveys in hours rather than days. They can focus on identifying root causes of vibration problems and apply powerful analysis tools to explore the best solution for practically every structural weakness. Renowned for its modal testing experience from impact testing of small structures to large-scale campaigns using hundreds of measurement channels, LMS continues its tradition of cutting-edge expertise and maximal testing efficiency with LMS Test.Lab Structures. From troubleshooting to virtual model validation Structures are test-characterized for many different reasons using methods of varying sophistication and complexity. Engineers can quickly pinpoint and correct a vibration problem by simply identifying structural resonances and dominant forcing mechanisms, or by plotting the structural deformation pattern at a specific frequency. To really understand the structural dynamics in detail, engineers turn to modal analysis to characterize measured force inputs. These modal models can be used to validate and update existing finite element models or used directly as the basis for design modification or multiattribute studies. covered in an integrated testing solution Since every testing department works differently, LMS Test.Lab Structures offers a fully scalable solution and covers the broadest application scope. Highly flexible, LMS Test.Lab Structures is suitable for a wide variety of applications and differing levels of expertise. So whether a structural dynamics expert needs to make an in-depth review of a system s structural behavior or a new operator needs to set up a basic test, every LMS Test.Lab Structures user will be able to get the right results to answer mission-critical questions exactly on time. Testing departments can fully protect their system investment, as LMS Test.Lab Structures can easily be expanded and tuned to their changing needs. Starting with impact testing, users can extend their solution with modal analysis, MIMO testing or operational modal analysis capabilities. Designed for testing efficiency Minimal test preparation time Especially for high channel-count structural tests, the actual measurement time is minimal compared to the preparation time. That s why LMS Test.Lab Structures offers various time-efficient shortcuts in setup preparation, like customized patch panels, direct data reading from TEDS-enabled sensors, notification of an ICP channel open-circuit condition or troubleshooting tools for cabling and sensor problems. Rapid geometry definition Test engineers rely on animated mode shape displays to review test results and draw first conclusions from their test campaign. But reliable and informative mode shapes require correct wire frame models. LMS Test.Lab Structures offers different ways to create these wire frame models in the most efficient way. You can define your geometry via Excel-like tables, import geometry via UFF, LMS CADA-X, CAD or FEA, copy/paste geometry information from Microsoft Excel, or create your model from stored TEDS transducer geometry information. Alternatively, LMS Test.Lab Structures helps you measure geometric coordinates with a hand-held probe or through digital photographs. Step-by-step guidance LMS Test.Lab Structures guides users though the entire measurement process with clear-cut control parameters and automatic online displays. LMS Test.Lab Structures can suggest valid test setup parameters as well as handle customized or company-specific templates. This workflow guidance lowers the threshold for technicians and occasional users, guarantees measurement consistency and overall process efficiency. Modal analysis made easy A step-by-step guide LMS has translated the formerly complex modal analysis process into a logical sequence of experience-proven steps, each embedded in a dedicated LMS Test.Lab worksheet. Through its workflow-based user interface, LMS Test.Lab helps users capture the right type of test data from modal parameter calculation to analysis validation faster and easier than ever before. Mode shapes in a few simple steps LMS Test.Lab Structures handles the three main modal analysis steps in an automatic way. LMS Test.Lab automatically collects all relevant test data while the user selects a frequency range for analysis. Then, It is designed to significantly reduce required test time so technicians and facilities can work much more efficiently a vital necessity with hyper-speed product development cycles. 40 LMS Test.Lab Structures

41 with a single mouse-click, the system poles are determined using a curve-fit in that frequency range. After that, the system calculates the mode shapes associated with all physically significant poles, including global residues and all modal coefficients. The right results - right from the start High-quality results have never been so easy to obtain. Users just select the measurements, run the analysis and view the results. That s it. A single page summarizes all the curve-fits so that any user can easily check that the animated shapes, identified frequencies and damping factors accurately reflect the analyzed structure. Achieving the best possible data quality Immediate operator feedback High-quality impact measurements require technicians to really concentrate on hitting right: striking the right point, in the right direction, not too hard, not too soft. LMS Test.Lab Structures makes the job as comfortable as possible. The system gives audio feedback on triggering, overload or completed measurements. It automatically rejects overload and double impact, auto-saves valid measurements and automatically increments measurement point IDs. For shaker tests including MIMO FRF measurements, simply push the start button - the system does the rest. Measurements you can trust Before tearing down the test setup, you need to be sure that all the collected measurements are correct and complete. With built-in checklist and self-check features, LMS Test.Lab Structures practically eliminates the risk of having to redo the test. LMS Test.Lab Structures lets operators inspect large sets of measurement data very efficiently. To guarantee data set completeness, the system highlights missing points and points with input overload. LMS Test.Lab Structures provides complete data annotation for maximum traceability. It stores the complete measurement setup with the measured results. Users can attach digital pictures of the setup details to the measured data, and add personal notes made during the test. LMS Test Lab Structures 41

42 No barriers between acquisition and analysis LMS Test.Lab Structures can run operational deflection shapes or modal analysis in parallel with the acquisition, providing preliminary modal results while the test is taking place. This helps validate data quality and creates valuable insight on the spot. Mode animation immediately reveals missing measurements, inverted sensor direction, an accelerometer that fell off, or incorrect calibration values. Preliminary mode shapes can show where additional measurement points are required for better resolution, or point to the need for different or additional excitation sites. Time-saving advanced techniques For large and complex structures with high damping and/or low response levels, traditional excitation techniques fail to inject sufficient energy into the structure and result in poor quality and noisy FRFs. In these cases, LMS Test.Lab MIMO Swept Sine Testing provides the high-level sinusoidal excitation and the high signal-to-noise ratio required to accurately measure these low response levels, together with the measurement speed of a broadband test. LMS Test.Lab MIMO Stepped Sine Testing lets the front-end control the input force for multiple input and multiple output stepped sine excitation. By controlling the input forces, the MIMO stepped sine technique is perfectly suited for investigating nonlinearity and advanced structural characterization. No compromises for the expert Experts appreciate LMS Test.Lab Structures arsenal of state-of theart parameter estimators that can solve even the toughest structural puzzles. Least Squares Complex Exponential Least Squares Complex Exponential (LSCE) is the standard (timedomain) pole-fitting method for both single and poly-referenced (MIMO) applications. LSCE is a proven algorithm that deals with a broad range of structures, providing required efficiency for high modal density. LMS Test Lab PolyMAX The LMS Test.Lab PolyMAX modal parameter identification algorithm has revolutionized the modal analysis process for highly damped structures and tests with noisy data. Its outstanding stabilization properties result in a very straightforward modal identification. LMS Test.Lab PolyMAX is commonly used for operational as well as experimental modal analysis. LMS Test Lab Automatic Modal Parameter Selection LMS Test.Lab Automatic Modal Parameter Selection (AMPS), an expert-level modal parameter selection tool, provides guidance for new users and speeds up the pole selection procedure on the stabilization diagram for complex structures. This tool is also used for operational as well as experimental modal analysis. 42 LMS Test Lab Structures

43 Advanced validation techniques Advanced validation techniques include MAC (auto and cross), FRF synthesis and modal mass calculation, as well as stiffness and damping for physical correlations. Once a validated modal model is available, users can quickly try different modifications using simulation techniques. LMS Test.Lab takes the validation process a step further with smart suggestions for the best modification points. The online FRF synthesis of the modified structure really simplifies modification definition eliminating numerous iteration cycles. Mastering masses of data LMS Test.Lab Structures is designed to handle massive amounts of data effortlessly in case of large-scale structural tests and multi-test processes. The measurements as well as the analysis results are automatically assembled, making it easy to select the relevant data and to create a reliable modal model of the entire structure. Dedicated data management assures that input FRFs, processing parameters and analysis results remain properly related, minimizing the risk of subsequent misinterpretation. Simulation-ready structural testing Using test data to create and validate simulation models requires a broader scope of test parameters as well as a higher degree of consistency. LMS Test.Lab Structures is designed to master both challenges. It provides rotational degrees-of-freedom, rigid body modes and other realistic factors for the creation of an accurate dynamic simulation model. LMS Test.Lab Structures is designed to provide consistent modal sub-models. It offers tools to validate simulation models, including cross-mac comparisons with experimental observations, orthogonality checks and comparison between computed-generated responses and actual physical shaker tests. LMS Test Lab Structures 43

44 LMS Test Lab Impact Testing Impact Testing is ideal for small structures, especially when boundary conditions are seriously disturbed by shaker attachment. While it requires minimum test preparation time, data harvesting is a tedious process. LMS Test.Lab provides a complete modal testing solution from measuring frequency responses to performing modal analysis using impact hammer frequency response function measurements for simultaneous response channels. Designed for single operator use, LMS Test.Lab Impact Testing supports automatic active channel detection and calibration. During measurements, the software alerts the operator to unusual circumstances; the resulting data set is automatically discarded without operator intervention. Built-in application knowledge quickly defi nes acquisition parameters such as trigger parameters and FFT-window selection. Auto-accepting averages help the operator take measurements without keyboard interaction, while having a complete view on all data. Seamless integration with the analysis applications provides immediate feedback to validate data correctness. LMS Test.Lab Impact Testing can be combined with additional LMS Test.Lab applications for faster data interpretation and analysis. Hammer impact testing provides a complete modal testing solution, from measuring frequency responses up to performing modal analysis. LMS Test.Lab Geometry can quickly generate wireframe and full 3D visualization of test and analysis results. Once a geometry is made, the roving hammer excitation can be driven by the geometry nodes. LMS Test.Lab Operational Defl ection Shapes and Time Animation provides immediate feedback to validate FRF correctness by on-the-spot animation of the geometry model. LMS Test.Lab Modal Analysis offers various fast and accurate single or multiple reference parameter estimation algorithms, and a complete set of modal model validation tools. LMS Test.Lab Geometry, LMS Test.Lab Operational Defl ection Shapes and Time Animation and LMS Test.Lab Modal Analysis are available as stand-alone analysis environments or as add-ins to LMS Test.Lab Impact Testing, which provides on-thespot analysis. Built-in application knowledge quickly defines acquisition parameters such as trigger parameters and FFT-window selection. Features Embedded expert system for impact parameter settings Roving/fixed hammer modes Point mobility & online dynamic stiffness are compared to reference curves Immediate visualization of FRF measurements on 3D geometry Double impact detection to avoid incorrect measurements Audio feedback Benefits Reduced test setup time with embedded parameter settings Optimized for single-operator use Easy-to-use software requires minimal operator training Immediate measurement validation and analysis quality guarantees reliable data and results Optimized test item availability through on-the-spot analysis and validation Easy traceability through full documentation, data management and reporting Built-in application knowledge provides automatic and quick definition of acquisition parameters. LMS Test.Lab Operational Deflection Shapes and Time Animation provides immediate feedback to validate FRF correctness by on-the-spot animation of the geometry model. 44 LMS Test Lab Structures

45 LMS Test Lab Spectral Testing and LMS Test Lab Source Control LMS Test.Lab Spectral Testing and LMS Test.Lab Source Control provide a productive state-of-the-art modal testing solution for structural excitation by up to 16 shakers or by impact hammer. Frequency response function measurements can be performed for simultaneous channels, all supporting ICP transducers or any voltage signal, and are IEEE TEDS compatible. LMS Test.Lab Spectral Testing provides dedicated test setups for multiple shaker FRF tests. Automatic active channel detection provides one-man calibration, while the open-loop cable check and built-in digital scope troubleshoot defective cables and transducers. Specifi c test setup validation tools perform excitation level balance checks and input force de-correlation validation, while online reference curves help compare current measurements with previous ones or targets. A comprehensive tabular overview of measured FRFs and coherence functions overlays the selected functions automatically in the display while the corresponding measurement points can be highlighted on a geometry wireframe. Missing points and points with input overload during testing can be also automatically highlighted on a geometry wireframe. Calibration includes automatic active channel detection, open-loop cable check and built-in digital scope to troubleshoot defective equipment. LMS Test.Lab Spectral Testing and LMS Test.Lab Source Control can be combined with further LMS Test.Lab applications for faster data interpretation and analysis. LMS Test.Lab Geometry provides fast wireframe generation and full 3D visualization of test and analysis results. Through TEDS support, geometry creation is further accelerated with the position information from pre-programmed TEDS transducers. LMS Test.Lab Modal Analysis offers various accurate single or multiple reference parameter estimation algorithms, and a complete set of modal model validation tools. With the clear stabilization diagrams from the LMS Test.Lab PolyMAX parameter estimation algorithm and the automatic modal parameter selection, the analysis process is simplifi ed and operator-dependency of the resulting modal model is eliminated. The scope function helps verify the setup before acquiring data. Features Permits structure excitation by up to 16 shakers in parallel Checks the de-correlation of excitation inputs online Measures multiple responses in parallel Helps compare driving point FRF, point mobility and dynamic stiffness with online reference curves Immediate visualization of FRF measurements on a 3D geometry Benefits Reduced test setup time and minimal operator training Reduced measurement time and optimized test item availability through high channel count, multiple excitation DOF and on-the-spot analysis and validation Immediate measurement validation and analysis guarantee reliable data and results Effectively deals with highly damped structures and nonlinear materials Easy traceability with full documentation, data management and reporting Online reference curves help compare driving point FRF, point mobility and dynamic stiffness. Immediate measurement validation and analysis guarantee reliable data and results. LMS Test Lab Structures 45

46 LMS Test Lab Operational Deflection Shape and Time Animation LMS Test.Lab Operational Deflection Shape and Time Animation provides both mobile and lab solutions to measure and visualize the structural deformation of any test item under operational load. The animated vibration patterns can be analyzed as time-history, or at selected frequencies for different load conditions or tracked against rotational speed or any operational parameters. The solution is seamlessly integrated with other LMS Test.Lab acquisition solutions for gathering time or spectral data during stationary, pseudo-stationary or transient operating conditions, avoiding time consuming data conversion and reducing user errors by making the analysis tool also available as a data validation tool. Time histories for all channels are directly written to the PC hard disk, in parallel to the online spectral processing, with a throughput performance independent of channel count, acquisition bandwidth or online processing. 3D animation of time data provides increased engineering insight in transient vibration behavior. LMS Test.Lab Operational Deflection Shapes and Time Animation provides easy navigation and data selection. All data types permit immediate analysis through geometry model animation: scrolling through the time axis like a slow motion camera or highlighting behavior at specific frequencies like a stroboscope. Any analyzed vibration pattern can be stored for future detail analysis or reporting purposes. LMS Test.Lab Operational Deflection Shapes and Time Animation can be combined with further LMS Test.Lab applications for faster data interpretation and analysis. LMS Test.Lab Spectral Testing helps define channel and acquisition parameters and multi-reference spectral processing functions. In all stages, the user receives feedback on the parameters defined for maximum validation of the test setup before the actual testing starts. During the measurements, any processing function can be monitored online and combined with any reference curve on the same display. LMS Test.Lab Standard Signature Testing measures and processes stationary and tracked spectral data and enables repetitive measurements from a pre-defined template in which layouts and measurement settings are specified. Narrow band spectra are acquired during run-ups, run-downs or sequences of both, at user-controlled time or rpm intervals, or may be averaged during stationary operating conditions. Online processing and visualization cover different formats. Online feedback on measurement progress and quality. Features Real-time monitoring of the acquisition progress Animation of 3D geometry from all angles Easy scroll through axes using movie or stroboscope displays at fixed operating conditions Deformation pattern recording at critical time and/or operating conditions Seamless test analysis integration with optional simultaneous analysis tools Benefits Provides effective and reliable laboratory or in-field data analysis Reduces calibration and orientation errors and increases productivity through on-the-spot validation and analysis Fast visual diagnosis with 3D animations Fast standard reporting with single button operation Stationary data is brought to life by animating the geometry immediately after the run to visualize what is really happening. Fast diagnosis with visualization of deformation at peak levels and most critical operating conditions. 46 LMS Test Lab Structures

47 LMS Test Lab Modal Analysis LMS Test.Lab Modal Analysis offers various fast and accurate single or multiple reference parameter estimation algorithms. The FRFs are gathered and automatically organized to give a comprehensive view of the available data and facilitate FRF selection/de-selection. Various sum and mode indicator functions help stabilization diagram interpretation and pole selection. The solution offers a complete set of modal model validation tools. The scrolling FRF synthesis automatically synthesizes FRFs and updates displays, without any user interaction, for fast and in-depth modal model validation. LMS Test.Lab Modal Analysis provides all the tools and functions required for experimental modal analysis. It includes tools to easily create FRF sets, perform modal parameter estimation in a fast and easy way on these FRF sets, validate the modal model using different methods and compare the original FRFs with synthesized ones. A worksheet-by-worksheet procedure guides the user through the basic steps. For multiple patch measurements, the multi-run modal analysis provides an easy method to solve potential data inconsistency issues between patches. Multi-run modal analysis provides a dedicated processing of modal test data that was obtained through different sets of measurements. This acquisition technique is widely applied when a limited set of accelerometers needs to be relocated to measure all response points of the structure. In such a case, FRF inconsistencies could affect the modal parameter estimation quality. Multi-run modal analysis automatically accounts for potential data inconsistency between runs when extracting modal frequencies and damping as well as during the subsequent mode shape calculation. For complex structures, LMS Test.Lab PolyMAX provides a state-of-the-art modal parameter estimator and expert-like automatic modal pole selection (AMPS) facility. Combination of these tools provides fast and user-independent results. LMS Test.Lab PolyMAX is available as an add-in to LMS Test.Lab Modal Analysis. Features Analysis data in acceleration, velocity and displacement format Calculate/show sum of FRFs and mode indicator function such as CMIF Modal parameter estimation based on LSCE method in 3 steps Automatic damping value correction when FRF measurements use exponential window Wide range of validation tools such as modal assurance criterion, modal phase collinearity, mean phase deviation Data inconsistency rectification with multi-run modal analysis Benefits Complete solution for modal analysis, optimized for ease-of-use State-of-the-art modal parameter estimation delivers clear stabilization diagrams, reducing complexity of pole selection and number of processing iterations Yields user-independent modal models The software offers a powerful acquisition and analysis solution for both novice and experienced users. The geometry workbook provides full 3D visualization of test and analysis results. Through crystal clear stabilization diagrams, the structural analysis of a printer is simplified. The software provides a wide range of validation tools such as modal assurance criterion. LMS Test Lab Structures 47

48 LMS Test Lab Operational Modal Analysis LMS Test.Lab Operational Modal Analysis provides an in-operation testing solution for modal parameter identifi cation, starting from user-selected segments of time data measured on a structure in operating conditions. Time histories are measured with the LMS Test.Lab Parallel Time Recording option of acquisition applications. Any subset of this time data can be used as a reference for the operational modal analysis to obtain optimal reference locations of all excited modes. The hardware confi guration can be adapted for either in-vehicle tests or tests of large objects such as bridges, buildings and airplanes. Time histories for all channels are directly written to the PC hard disc, simultaneously with the online spectral processing and a throughput performance independent of channel count, acquisition bandwidth, or online processing. LMS Test.Lab Operational Modal Analysis extracts modal parameters from response time measurements and further provides a modal model validation tool set, data synthesis and mode shape visualization. The solution offers a convenient overview of all input time histories, and helps easy selection of specifi c data segments. Modal analysis of a structure in operation helps engineers increase the durability of the structure and its components. LMS Test.Lab Operational Modal Analysis can be combined with other LMS Test.Lab applications for faster data interpretation and analysis. With the clear stabilization diagrams from the LMS Test.Lab PolyMAX parameter estimation algorithm and the automatic modal parameter selection (AMPS), the analysis process is simplifi ed and operator-dependency of the resulting modal model is eliminated. LMS Test.Lab Spectral Testing gives feedback on defi ned parameters, with maximum validation of the test setup before the actual testing starts. During measurements, any processing function can be displayed and monitored online, while additional information such as rotational speed can also be checked. When performing operational modal analysis on structures with rotating components, such as helicopters or rotating machinery, component harmonics could infl uence the test results. With the LMS Test.Lab Harmonic Removal add-in, the harmonic contents from the time data can be fi ltered out. Convenient overview of all input time histories, with easy selection of specific data segments. LMS Test.Lab Operational Defl ection Shapes and Time Animation, LMS Test.Lab Operational Modal Analysis and LMS Test.Lab Geometry are available as stand-alone analysis environments or as add-ins to LMS Test.Lab Spectral Acquisition. Features Online spectral analysis while recording continuous time data Cross-spectra analysis Embedded test setup definition Parameter estimation on any user-selected data segment High channel count for high performance Benefits Operational modal parameters deliver extra information on modes to study resonance changes during operating conditions Immediate validation of throughput measurements on screen Requires minimal operator training Yields user-independent modal model Easy traceability with full documentation, data management and reporting Mode shape visualization gives immediate insight into the root cause of the vibration or acoustical problem of the structure. In civil engineering, the dynamic properties of bridges are studied to consider the effects of traffic and wind induced vibration. 48 LMS Test Lab Structures

49 LMS Test Lab MIMO Sine Sweep Testing LMS Test.Lab MIMO Sine Sweep Testing provides a complete solution for FRF-based modeling of large and complex structures that are diffi cult to excite with suffi cient energy. It uses broadband excitation techniques and its applications range from measuring frequency response functions for path contribution analysis, point mobility measurements of component attachment points to complex stiffness measurements of mounts and bushings. By exciting the structure with a sweeping sine, LMS Test.Lab MIMO Sine Sweep Testing combines the high signal-to-noise ratio of sine excitation with broadband testing measurement speed. During MIMO testing, multiple sine sweeps with different phase conditions between the averages give correct frequency response functions. Accurate sine extraction results in leakage-free response spectra, while a system identifi cation step prior to the sine sweep helps control excitation levels and increase the dynamic range of the 24-bit A/D converters. Harmonic distortion spectra and excitation level control following a reference profi le provide insight into the structure s nonlinear behavior. The software provides a complete solution for FRFbased modeling of large and complex structures that are difficult to excite with sufficient energy. LMS Test.Lab MIMO Sine Sweep Testing is designed to measure the structure s response at different points to a controlled sinusoidal excitation. The solution offers an intuitive way to defi ne channel and acquisition parameters as well as process functions. In all stages, the user receives feedback on the defi ned parameters, so that the test setup can be maximally validated before the actual testing starts. A system identifi cation procedure helps determine a fi rst system FRF matrix estimate using periodic random excitation and predicts response levels on all channels for the sinusoidal excitation. During the actual measurements, all relevant information can be displayed and monitored online. A specifi c validation sheet gives an overview of the measured DOFs as well as their position on the structure. LMS Test.Lab MIMO Sine Sweep Testing can be combined with LMS Test.Lab Operational Defl ection Shapes and Time Animation, LMS Test.Lab Modal Analysis or LMS Test.Lab Geometry for faster data interpretation and analysis. The applications are available as stand-alone analysis environments or as add-ins to LMS Test.Lab MIMO Sine Sweep Testing. During the measurements, all required functions are displayed online. Features Shaker and transducer verification System identification procedure with periodic random test Definition of amplitude/phase versus frequency profiles for up to 16 DAC outputs or up to 16 target control channels Available measurement functions: FRFs, coherence, autopower, crosspower High signal-to-noise ratio provides noise-free FRFs Leakage-free data acquisition giving correct amplitude at resonance frequencies Benefits Fail-safe software with user-defined abort levels protects the test object Reduced testing time and optimized test item availability through onthe-spot analysis and validation Results in higher quality FRFs, even in situations where broadband excitation fails Effectively characterizes highly damped structures and nonlinear materials System identification procedure with periodic random test. Mode shapes visualization gives immediate insight into the root cause of the vibration or acoustical problem of the structure. LMS Test Lab Structures 49

50 LMS Test Lab MIMO Stepped Sine Testing LMS Test.Lab Stepped Sine Testing provides a multiple input stepped sine excitation to measure multiple input and output frequency response functions to be used for modal analysis. By exciting the structure with a stepped sine, LMS Test.Lab MIMO Stepped Sine Testing combines the high signal-to-noise ratio of sine excitation and front-end controlled input force and provides proper excitation on lightly damped structures. During MIMO stepped sine testing, multiple sine sweeps with different phase conditions between the averages present correct frequency response functions. Accurate sine extraction results in leakage-free response spectra, while a system identifi cation step prior to the stepped sine helps control excitation levels and increase the dynamic range of the 24- bit A/D converters. Harmonic distortion spectra and excitation level control following a reference profi le provide insights into the structure s nonlinear behavior. Up to 16 exciters with different level control types are available. Fixed voltage level on exciters can be used for nonlinearity characterization under open loop conditions. Amplitude and phase control of input forces provide high accuracy in phase control closed loop during the stepping phase by a special MIMO FRF based control algorithm, using singular value decomposition for the FRF matrix inversions. Each control/exciter level can be set at a fi xed amplitude, or according to a tabulated reference spectrum. Frequency ranges are either linear or exponentially incremented. Multiple frequency ranges provide fi ne frequency resolution around resonances where necessary, and coarse resolution elsewhere to save time. These ranges can be concatenated to obtain concatenated response spectra. LMS Test.Lab MIMO Stepped Sine Testing can be combined with LMS Test.Lab Operational Defl ection Shapes and Time Animation, LMS Test.Lab Modal Analysis or LMS Test.Lab Geometry for faster data interpretation and analysis. The applications are available as stand-alone analysis environments or as add-ins to LMS Test.Lab MIMO Stepped Sine Testing. Features System identification procedure with periodic random test Amplitude and force control integrated in the front-end for optimal control loop time Reference profile and tolerance for each shaker Individual abort level for each channel 2 control modes: amplitude, amplitude/phase Possibility to use logarithmic or linear x-axis Benefits Fail-safe software with user-defined abort levels and leakage free FRFs Highest signal-to-noise ratio Best suited to study nonlinear behavior of structures Yields highest quality data for modal analysis, ground vibration tests and design modification Seamless integration with LMS Test.Lab Modal Analysis solutions Multi-shaker MIMO testing with numerous channels provides a very productive modal testing solution. Frequency ranges are either linear or exponentially incremented. A system identification step helps control excitation levels and increase the dynamic range of the converters. Amplitude and force control integrated in the frontend for optimal control loop time. 50 LMS Test Lab Structures

51 LMS Test Lab MIMO Normal Modes Testing LMS Test.Lab MIMO Normal Modes Testing presents multiple input and output phase appropriation techniques. It is designed to measure resonance frequency, damping and mode shapes of a structure. LMS Test.Lab MIMO Normal Modes Testing automatically adjusts amplitude and phase of the forces injected into the structure to tune a single, normal vibration mode. The solution provides manual and automatic resonance tracking as well as force appropriation techniques. The frequency and forcing vector must be identifi ed and applied in such a way that the complete structure vibrates only according to the desired mode and that all acceleration responses are in phase quadrature with the input force vector. LMS Test.Lab MIMO Normal Modes Testing offers an intuitive way to defi ne channel, acquisition, tuned modes and tuning parameters. In all stages, the user gets feedback on the parameters defi ned, so that the test setup can be maximally validated before the actual testing starts. Based on frequency response functions measured with either random or sine excitation, users can easily defi ne the force ratio that needs to be applied for each mode. Manual tuning provides manually control of drive frequency and level. Force realization is a special MIMO FRF-based control algorithm using singular value decomposition for the FRF matrix inversions that provides high accuracy of the required force vector. During actual measurements, all relevant information such as Lissajous display, scatter diagram, mode indicator function, animated geometry and time data can be displayed and monitored online. Features Excitation with up to 16 shakers Pre-test force ratio calculation with extended Asher s method, mode indicator and inverse mode indication function method Automatic tuning based on phase tolerance between master exciter and master response Safety limits on maximum acceleration response and maximum exciter level Frequency sweep around resonances to determine damping ratio and modal mass using the complex power or force quadrature method Benefits Direct measurement of normal mode shapes without the need for frequency response functions or modal parameter estimation techniques Single mode excitation by controlled force appropriation for enhanced comparison with finite element analysis or other excitation methods Most suitable method to study nonlinear behavior of structures by amplitude sweeping Precision process centric solution Immediate feedback on acquisition and processing parameters The method is most suitable to study structures nonlinear behavior by amplitude sweeping. The software offers an intuitive way to define channel, acquisition, tuned modes and parameters. Direct measurement of normal mode shapes without FRFs or modal parameter estimation techniques. Frequency sweep around resonances to determine damping ratio and modal mass. LMS Test Lab Structures 51

52 LMS Test Lab Ground Vibration Testing (GVT) LMS Test.Lab Ground Vibration Testing is a complete solution for performing stepped sine and normal modes testing. Together with LMS Test.Lab Spectral Testing, LMS Test.Lab Structures provides excitation capacities ranging from random excitation and swept sine to stepped sine and normal modes, giving engineers an abundance of open loop and closed loop excitation possibilities. With the V12 acquisition card, the LMS SCADAS III is a very compact system relative to the high channel count. Up to 180 channels can be built on one master frame and up to 204 channels on a slave frame. The combination of master and slave frames provides a distributed system confi guration. This reduces the length of the wires and makes the test setup easier. LMS Test.Lab Ground Vibration Testing has been set up so that channel confi guration can be easily carried over from one solution to another. Once the channel setup is defi ned, all the acquisition applications can share the same confi guration; you only have to load the appropriate acquisition tool and fi x the corresponding parameters to start the measurements. This signifi cantly speeds up the use of different excitation signals when performing a ground vibration test on an aircraft. By exciting the structure with a sweeping sine over a period longer than one block, LMS Test.Lab MIMO Sine Sweep Testing combines the high sine excitation signal-to-noise ratio with broadband testing measurement speed. During MIMO testing, multiple sine sweeps with different phase conditions between the averages provide correct frequency response functions. Accurate sine extraction results in leakage-free response spectra, while a system identifi cation step prior to the sine sweep helps control excitation levels and further increase the dynamic range of the 24-bit A/D converters. Harmonic distortion spectra and excitation level control following a reference profi le provide insights into the structure s nonlinear behavior. LMS Test.Lab MIMO Sine Sweep Testing provides more information on this topic. By exciting the structure with a stepped sine, LMS Test.Lab MIMO Stepped Sine Testing combines the high sine excitation signal-tonoise ratio and front-end controlled input force and provides proper excitation on lightly damped structures. Up to 16 exciters with different types of level control are available. Fixed voltage level on exciters can be used for nonlinearity characterization under open loop conditions. Amplitude and phase control of input forces provide Random excitation Combined with LMS Test.Lab Source Control, LMS Test.Lab Spectral Testing provides a productive state-of-the-art modal testing solution supporting structural excitation by up to 16 shakers. Random, burst random, sine, burst sine, periodic chirp excitation can be easily defi ned. Random excitation provides the phase separation technique which gives a fi rst analysis of the structure. Modal analysis can be performed right after the measurements. Most modes can already be selected during a random excitation measurement. As a result, the test duration is reduced by one third. The LMS Test.Lab Spectral Testing solution provides more information on this topic. MIMO sine testing MIMO sine testing provides a multiple input and output swept sine acquisition and a multiple input and output stepped sine acquisition. Photo courtesy of Goodrich Corporation, Ontario Canada 52 LMS Test Lab Structures

53 The solution helps aircraft and spacecraft manufacturers accelerate testing assignments with higher quality data production. high accuracy in phase control closed loop during the stepping phase by a special MIMO FRF based control algorithm, using singular value decomposition for the FRF matrix inversions. Multiple frequency ranges present fi ne frequency resolution around resonances where necessary, and coarse resolution elsewhere to save time. LMS Test.Lab MIMO Stepped Sine Testing provides more information on this topic. MIMO normal modes testing LMS Test.Lab MIMO Normal Modes Testing provides a multiple input and output phase appropriation technique. Once the channel setup is defined, all the acquisition applications can share the same configuration. It is designed to directly measure resonance frequency, damping and modes shape on a structure. The Test.Lab MIMO Normal Modes Testing automatically adjusts the amplitude and phase of the forces injected into the structure to tune a single normal vibration mode. Manual or automatic resonance tracking and force appropriation techniques are available. The frequency and forcing vector must be identifi ed and applied so that the complete structure vibrates only according to the desired mode and that all acceleration responses are in phase quadrature with the input force vector. LMS Test.Lab MIMO Normal Modes Testing provides more information on this topic. Features Up to 16 exciters Open and closed loop control Measures transfer functions with random, swept sine, and stepped sine excitation Measures resonance frequency, damping ration and deflection directly with normal mode excitation Supports non-linearity study Benefits Reduced test time with easily recoverable channel setup for all acquisition applications All applications are built on the same LMS Test.Lab platform Fast and easy data reporting Immediate data validation without switching between applications Reduces test cycles for ground vibration testing Seamless integration with LMS Test.Lab Modal Analysis solutions Harmonic distortion spectra and excitation level control following a reference profile provide insights into the structure s nonlinear behavior. LMS Test.Lab MIMO Normal Modes Testing provides a multiple input and output phase appropriation technique. LMS Test Lab Structures 53

54 LMS Test Lab Modification Prediction LMS Test.Lab Modifi cation Prediction evaluates structural modifi cations (mass, stiffness and damping) of elements such as mass, spring-damper and tuned absorber on the dynamic behavior of a mechanical structure using modal system synthesis techniques. Multiple modifi cations can be prepared and saved in a modifi cation set. Based on the modal model (scaled mode shapes identifi ed with experimental or fi nite element modal analysis) and on the modifi cation element defi nition, a modal model of the modifi ed structure is calculated. The effect of such a set of modifi cations on a modal model can be calculated and compared to the original situation. LMS Test.Lab Modifi cation Prediction is a member of the LMS Test.Lab analysis product family. It can be used both as a stand-alone solution and as an add-in. Features Efficiently dissipate vibration energy using a tuned absorber Add masses or change local stiffness to move resonant frequencies Remove masses at all points and predict accurate natural frequencies Predict structural modification effects and global impact of selected modifications without physically changing the structure Evaluate alternative design variation without repeated testing Benefits Complete solution for modal model modification, optimized for ease-of-use Requires minimal operator training Predict structural modification effects and its global impact without physically changing the structure. Add masses or change local stiffness to move resonant frequencies. Efficiently dissipate vibration energy using a tuned absorber. Evaluate alternative design variation without repeated testing. 54 LMS Test Lab Structures

55 LMS Test Lab Rigid Body Properties Calculator When modeling intricate structures, subassemblies, or mechanism dynamics, the subassembly rigid body characteristics might be too complex or inaccurate to calculate. With the LMS Test.Lab Rigid Body Properties Calculator, LMS offers wellknown FRF measurement techniques to extract essential parameters such as center of gravity, moments and principal axes of inertia. Frequency response functions (FRFs) are measured in the same way as in experimental modal analysis. The structure is suspended in free-free condition using a soft suspension. FRFs are measured with standard modal testing equipment: an impact hammer or a shaker, force cells and accelerometers. For the precision of the rigid body properties, 6 different excitation locations and 8 output points (measured in 3 directions) are required. The rigid body properties calculator uses the mass line characteristics of the measured FRFs and the known geometrical coordinates of the measurement points to calculate the rigid body properties. There is no need to fi rst identify 6 rigid body modes with the classical modal parameter identifi cation, since it is usually not possible to perform this task accurately. The calculator is able to compensate for the residual effect of the fi rst fl exible modes on the mass line. FRFs are measured in the same way as in experimental modal analysis. Three mass line methods can be defi ned, using either measured FRFs, corrected FRFs of which the fl exible modes have been subtracted, or lower residual terms from a standard modal analysis. These three mass line methods guarantee optimum accuracy and compensation of fl exible modes. Optimized data selection capabilities make FRF selection easy and visualization possible and assist users in selecting the frequency band with double cursor on either selected FRFs or sum of all FRFs. The LMS Test.Lab Rigid Body Properties Calculator supports the creation and visualization of geometries, center of gravity and principal axes and the immediate animation of rigid body modes. LMS Test.Lab Rigid Body Properties Calculator provides valid data selection with geometry animation. Features 3 mass line methods Valid data selection with rigid body correlation Valid data selection with geometry animation Calculates rigid body properties and 6 rigid body modes in one click Calculates user-defined frequency and damping for rigid body modes Benefits Geometry can be defined in local or global coordinates Measured directions are transformed automatically to global coordinates Easy FRF selection Valid data selection with geometry animation LMS Test.Lab Rigid Body Properties Calculator calculates user-defined frequency and damping for rigid body modes. LMS Test.Lab Rigid Body Properties Calculator calculates rigid body properties and 6 rigid body modes in one click. LMS Test Lab Structures 55

56 LMS Test.Lab Structures Options LMS Front-end drivers LMS front-end 8 channels drivers LMS front-end 12 channels drivers LMS front-end 16 channels drivers LMS front-end 40 channels drivers LMS front-end 60 channels drivers LMS front-end Premium drivers LMS Test.Lab Run Data Averaging & Comparison Organizer The worksheet provides a comprehensive view of all available 2D data (order sections, frequency sections, octave spectra or octave sections) and is designed to compare and average results from various tests very quickly for validation and/or processing. Selected data are immediately displayed via powerful display filling modes in user-defined screen layouts. Embedded navigation supports fast scrolling across functions or measurement points. Individual measurements are included or excluded from automatic average and envelope calculations by tick-box selection. Averages and envelopes can be stored in a project database. LMS Test.Lab Signature Throughput Processing The LMS Test.Lab Signature Throughput Processing host worksheet offers a convenient display overview of time histories, including zoom-in, immediately after completing a measurement using the parallel throughput functionality, without leaving the data acquisition application. The Processing Data Set definition functionality organizes and combines recordings for batch processing. A Quick Spectral Map provides insight into spectral contents to guide the appropriate processing parameter selection. The software offers efficient processing of multiple throughput files with a common set of processing parameters. Tracking channels can be used to control the time data selection to be processed. It supports trial processing on a limited number of channels and includes batch processing with auto-saving of results. The module also offers a preview of processing results with auto-switching of the display. LMS Test.Lab Multi-Reference Post Processing LMS Test.Lab Multi-Reference Post Processing offers efficient processing of multiple throughput files with a common set of processing parameters. LMS Test.Lab Multi-Reference Post Processing is supported for stationary measurements such as time data recorded in the spectral acquisition application; autopower and crosspower can be processed. LMS Test.Lab Multi-Reference Post Processing offers multiple input and output FRFs (H1, H2, Hv), partial coherence and transmissibility off-line processing with autopower and crosspower as input. LMS Test.Lab Principal Component Analysis LMS Test.Lab Principal Component Analysis helps reduce complex noise and vibration problems to more manageable, independent, uncorrelated problems with multiple partially correlated references. These problems range from structure-borne road-noise to the combined effects of airconditioning compressor and engine noise. By applying singular value decomposition techniques on a multi-reference crosspower matrix, this matrix is decomposed into its principal components, yielding as many single reference sets of crosspowers as there are references. The solution also features other functions such as virtual coherence and virtual spectra. Principle component analysis results can be used for further transfer path analysis. 56 LMS Test.Lab Structures

57 LMS Test.Lab PolyMAX LMS Test.Lab PolyMAX is available as an add-in to LMS Test.Lab Modal Analysis and LMS Test.Lab Operational Modal Analysis. It is an advanced modal parameter estimation technique that offers superior identification of modal parameters. Its main advantage consists in damped structure identification, where more modes can be identified into a higher frequency range. LMS Test.Lab PolyMAX also detects less well-excited modes. Thanks to the clear stabilization diagram, mode selection can be performed in larger frequency bands and with higher confidence. With LMS Test.Lab PolyMAX, an advanced modal parameter estimation technique has been introduced that renders the final modal model user-independent. It is capable of extracting more modal information out of the same data-set as conventional parameter estimation techniques. LMS Test.Lab Automatic Modal Parameter Selection (AMPS) LMS Test.Lab Automatic Modal Parameter Selection (AMPS) is an add-in tool for LMS Test.Lab Modal Analysis and LMS Test.Lab Operational Modal Analysis. The tool automatically selects physical poles in the stabilization diagram. It was developed based on the knowledge and skills of experts who assess stabilization diagrams. Benchmark research positioned it as a guidance tool for novices as well as an advisory tool to speed up the pole selection process for experts in both standard and operational modal parameter estimation cases. LMS Test.Lab Geometry LMS Test.Lab Geometry provides fast wireframe generation and full 3D visualization of test and analysis results. Point coordinates are defined in Excel-like tables, while connections and surfaces are graphically defined in the display. The geometry can be copy/pasted from Microsoft Excel or imported from a UFF file, STL file, LMS CADA-X, FEA model or LMS Virtual.Lab. Through TEDS support, geometry creation is further accelerated with the position information from preprogrammed transducers. LMS Test.Lab Photogrammetric Geometry Definition This option within LMS Test.Lab Geometry consists of software to process digital pictures, made with a digital camera from different viewpoints around the test object. The software automatically identifies target points on the pictures and reconstructs the 3D geometry model of the object without any operator interaction. LMS Test.Lab Geometry Scanning This option within LMS Test.Lab Geometry consists of hardware and software to digitize point coordinates of a test structure. Digitization is done through a hand-held probe with a built-in camera that uses image recognition of reference panels to determine its position in 3D. The calculated coordinates are immediately available in LMS Test.Lab Geometry and the LMS Test.Lab display. It supports measurements of a global axis system as well as Euler angles (transducer orientation). It works extremely well on small and large structures with irregular geometry or high point density. LMS Test.Lab Structures 57

58 LMS Test.Lab Rotating Machinery Mastering the complexity of vibro-acoustic testing 58 LMS Test Lab Rotating Machinery

59 LMS Test Lab Rotating Machinery 59

60 LMS Test.Lab Rotating Machinery Mastering the complexity of vibro-acoustic testing When engineering quiet, efficient and reliable products, mastering the sound and vibrations produced by engines, compressors, electrical motors, pumps and shafts, is a highly complex process. Engineering teams that focus on vibro-acoustic troubleshooting and product refinement require a comprehensive array of tools: waterfall mappings, order tracking, time data, processing functions and specialized modules to analyze and visualize the vast amounts of data that are generated. Whether you are performing measurements in an engine test cell, in a vehicle on the proving ground or on a pump in the field, LMS Test.Lab Rotating Machinery is the right choice for you. Astonishing measurement capabilities Since so much is happening at once, LMS Test.Lab Rotating Machinery measures everything in parallel you ll be tracking signatures, recording temperature, pressure, strains and other speed references, computing orders using high-speed digital filters, throughputting raw time data and monitoring sound fields using real-time 1/3 octaves. There is no need to repeat tests just to see data in a different format. Online displays keep users up-to-date about measurement progress. Flexible data processing in real-time Users do not have to wait before they can start post-processing data. The system calculates everything during the acquisition run without data loss or slowing down measurements. Incoming results can be compared against reference curves, running averages of run-ups, or previously stored data sets. Immediately after the run, users can flip through a series of waterfalls, switch between spectral, octave, and order ratio formats, toggle color maps through user-definable presentation styles or re-process raw time data to change rpm increments. Order Analysis Through measuring and analyzing signal phenomena related to rotational frequency harmonics of the engine/motor, orders are identified. Engineers can identify noise generated by rotational vibrations and localize its sources. The structural operating conditions can be determined through the separation of rotational and structural noise and vibrations, critical speed identification, and structural resonances. Torsional vibration and acoustic measurements can be combined to get a better insight into the unit s operational behavior. Engineers can investigate instabilities in the rotating equipment and expose accuracy and structural integrity problems. 60 LMS Test Lab Rotating Machinery

61 templates can be customized, assuring repeatable and comparable measurements. With the embedded data documentation and reporting capabilities, reporting and target verification are easier than ever. Optimal test productivity and integrity LMS Test.Lab Rotating Machinery has been designed to make the measurement process as efficient, productive and user-friendly as possible. Users can define icons on the Windows desktop to launch LMS Test.Lab and automatically load specific and customized test templates. Test operators can follow user-defined workflows that specify overall guidelines, channel setup, calibration, tracking and acquisition setup, online visualization and post-processing. Everything is automatically loaded so operator intervention is minimal and the incidence of errors is reduced. Smooth channel definition and efficient acquisition and tracking LMS Test.Lab Rotating Machinery provides a wide range of functionalities to efficiently and specify the channel list for any measurement setup: check/upload transducer calibrations and point-ids from any ODBC database; automatic detection of calibrated channels; configurable layout panel and channel grouping and categorization; support of smart TEDS transducers. LMS Test.Lab Rotating Machinery supports multiple tacho channels. It instantly shows results, indicates when a channel is enabled and warns whenever a cabling error occurs. The solution provides interactive, cursor-driven tacho level setting and a multiple-channel overview. Real-time processing Thanks to online display options and layouts, the operator can choose what to monitor during data acquisition. These options include the usual range of spectra, color maps and rpm-related traces as well as reference curves, derived channels, and online indicators. Multiple acquisition modes help users tune the system to cover any measurement scenario. If required, raw time data can be recorded together with data processed online. Off-line processing Data recording and processing Even in demanding operating conditions, engineers need to be able to perform tests that yield reliable data. In-vehicle measurements in rough environmental conditions must be possible without failure. Measuring data and visualizing tests online guarantees data reliability and provides direct information on what is happening. Easy manipulation and specific event-dependent processing can then be done after the tests. Standard and customizable scenarios LMS Test.Lab Rotating Machinery presents a flexible solution for fast troubleshooting with frequent setup changes that provides analysis and data interpretation tools and transparent data access for comparison. Templates support standardized test procedures. When company-specific procedures need to be executed, those LMS Test.Lab Rotating Machinery helps users manipulate, process, and re-format readings. Various graphs can be generated: from rpmtime diagrams, interactive cursor sections, to summation diagrams in the frequency and/or order domains. Users can select linear, weighted and user-defined functions and formats, drag and drop data into waterfalls, switch between spectral, octave, and order ratio formats. Application add-ins Each LMS Test.Lab solution can be extended with additional capabilities, loaded as add-in. The workflow can thus be adapted to include specific tasks such as automatic comparison or averaging of consecutive runs, advanced automatic or interactive off-line data processing, operational deflection shape visualization to understand vibration behavior during operation, or transient phenomena examination. LMS Test Lab Rotating Machinery 61

62 LMS Test Lab Signature Testing LMS Test.Lab Signature Testing offers online and off-line harmonic analyses based on narrow-band waterfall spectra and color maps, measured on rotating equipment in any operating condition. Data acquisition supports all signal conditioning available on LMS SCADAS front-ends. With LMS Test.Lab Signature Testing, spectral data and orders can be measured and processed repeatedly in accordance with custom procedures, making use of pre-defi ned templates with specifi ed display layouts and measurement settings. The template may contain the complete measurement campaign, covering multiple measurement scenarios. Throughout the execution of the campaign, the user will have feedback on the progress of particular measurements and on the campaign in general. This solution supports acquisition during run-ups, run-downs or sequences of both, at user-defi ned time or rpm intervals or at predefi ned increments of any other slowly varying quantity, like e.g. engine torque. It further supports spectra averaging during (semi-)stationary operating conditions. Derived tacho channels provide online order monitoring, related to rotational speeds that are linked via fi xed gear ratios. These channels support order analysis in case of fully variable (CVT) gear ratio. The online processing and visualization formats include RMS-levels, waterfalls, order, frequency, octave and psycho-acoustic sections, as well as statistical quantities. With online derived channels, engineers can calculate and visualize simulated channels in real-time by recombining signals measured on physical channels using both basic and advanced mathematical operations. With multiple sample rates, the amount of saved data can be reduced by acquiring vibration channels at a lower sampling rate, while keeping the high sample rate for acoustic channels. Online reference curves can be used as targets to validate the current design or to check multiple run repeatability. Intelligent displays provide transparent coupling of measured results to the underlying data, providing fast and convenient in-depth result analysis. Post-processing offers a list of functions for global problem characterization and helps gain a deeper insight into physical processes. Features Online monitoring of multiple parallel measurement functions and status indicators Online and off-line order analysis with reference to measured or derived tacho channels Online check against reference curves Online derived channels with basic and advanced calculator functionality Benefits Offers fast diagnosis capability based on accurate and applicationoriented data organization Reduces errors and accelerates productivity Improves processes with online feedback on progress and measurement quality Presents fast standard reporting Engineers perform troubleshooting and design verification on test benches or in field. Online status information help the operator monitor measurement progress and take corrective actions. Cursors are coupled to facilitate root-cause analysis. Order analyses can be done online during acquisition or off-line based on waterfall or throughput data. 62 LMS Test Lab Rotating Machinery

63 LMS Test Lab Order Tracking LMS Test.Lab Order Tracking offers a solution for advanced harmonic analysis on rotating equipment in any operating condition. Order sections are obtained from data sampled synchronously with rpm, giving leakage-free, razor-sharp order cuts, while any additional online processing present in LMS Test.Lab Signature Analysis is also available. LMS Test.Lab Order Analysis is an ideal solution whenever fast run-ups and coast-downs may cause order leakage based on fixed sampled data or whenever orders are closely spaced. Raw time data can be recorded in parallel for off-line re-processing. Data acquisition supports any signal conditioning offered by LMS SCADAS front-ends. Spectral data and orders can be measured and processed repeatedly in accordance with custom procedures, making use of pre-defined templates with specified display layouts and measurement settings. The template may contain the complete measurement campaign, covering multiple measurement scenarios. Throughout the execution of the campaign, the user will have feedback on the progress of particular measurements and on the campaign in general. This solution supports acquisition during run-ups, run-downs or sequences of both, at user-defi ned time or rpm intervals or at predefi ned increments of any other slowly varying quantity, like e.g. engine torque. It further supports spectra averaging during (semi-)stationary operating conditions. Derived tacho channels provide online order monitoring, related to rotational speeds that are linked via fi xed gear ratios. These channels support order analysis in case of fully variable (CVT) gear ratio. The online processing and visualization formats include RMS-levels, waterfalls, order, frequency, octave and psycho-acoustic sections, as well as statistical quantities. With online derived channels, engineers can calculate and visualize simulated channels in real-time by recombining signals measured on physical channels using both basic and advanced mathematical operations. With multiple sample rates, the amount of saved data can be reduced by acquiring vibration channels at a lower sampling rate, while keeping the high sample rate for acoustic channels. Online reference curves can be used as targets to validate the current design or to check multiple run repeatability. Time histories for all channels can be validated immediately after measurements. The solution provides any processing function needed to gain deeper insight into physical processes, analyzing individual recordings or batches of time histories from multiple measurements. Intelligent displays provide transparent coupling of measured results to underlying data, helping fast and convenient in-depth result analysis. Multiple tacho inputs help track vibrations with respect to several rotation speeds, such as in aeroengines or transmission systems. Compare measurements, make averages and scroll through channels: LMS Test.Lab does the data handling while you concentrate on results. Features Simultaneous measurements of leakagefree, synchronously sampled order sections and fixed sampled spectra Online monitoring of spectra, waterfalls and color maps, octave displays and order sections, and a variety of measurement status indicators Simultaneous recording of raw time data Online check against reference curves Benefits Maximal data consistency and measurement productivity, providing online high precision order analysis while acquiring narrowband waterfall data and time recordings Productive batch processing of throughput data from multiple measurements Fast and convenient standard reporting, productive batch plotting Combine the convenience of narrowband spectra with the accuracy of synchronously sampled orders and store raw time data for future analysis. Simultaneous acoustic and vibration measurements, even with different sampling rates, give increased insight into global vibro-acoustic behavior. LMS Test Lab Rotating Machinery 63

64 LMS Test Lab Time Data Acquisition and Processing LMS Test.Lab Time Data Acquisition and Processing provides a powerful tool for recording time data in laboratory and fi eld conditions up to 80kHz effective bandwidth. The system can record continuous time data while monitoring online and in real-time user-confi gurable processing functions, including order sections or any function important for noise and vibration applications. All signal conditioning provided by LMS SCADAS front-ends is supported. LMS Test.Lab Time Data Acquisition and Processing writes time histories for all channels directly to the PC hard disc. The resulting time data fi les have no physical size limitations and contain all dynamic and static channels as well as rpm-time traces for all tacho channels and overload information for each individual channel. Highly responsive level indicators provide an instantaneous overview of all channel levels, and provide high or low alarming capabilities on detected peak levels. Online and off-line processing and visualization capabilities include instantaneous or averaged frequency spectra, time data, octave data, order and frequency sections, overall levels, waterfall and color map displays. Highest priority is given to throughput data and level detection, while displays show the latest processed data. Once the data is acquired, it is immediately ready for visualization and post-processing. The LMS Test.Lab interface helps users interactively select specifi c time segments, perform a wide range of editing operations, or batch process all channels, even from different measurement runs. The solution permits interactive time data editing and provides a broad range of processing functions like spectrum, autopower, crosspower and FRF, order sections, frequency sections, octave maps, equivalent loudness, cepstrum and Hilbert transform, or zero-phase LP-HP-BP-BS and (trackable) Notch fi ltering. Features High precision, high bandwidth multichannel recording directly to PC hard disc Integrated signal conditioning Overview of all channels with continuous high and low level monitoring Online monitoring of spectra, waterfalls and color maps, octave displays and order sections, and a variety of measurement status indicators Batch throughput processing to process multiple measurement runs simultaneously Benefits Ensures effective and reliable data recording Online monitoring of instantaneous values or trend monitoring Immediate data availability after the test Includes easy-to-use automated processing of multiple recordings Presents fast standard reporting with single button operation The LMS SCADAS provides online processing capabilities for higher confidence while measuring. The scope function helps verify the setup before acquiring data. Immediate time data validation gives a quick result overview and allows zooming in on details. Virtual channels can be defined as mathematical operations on physical channels. 64 LMS Test Lab Rotating Machinery

65 LMS Test Lab Turbine Testing LMS Test.Lab Turbine Testing provides a highly advanced and all-digital solution for the specifi c diffi culties, associated with complex turbine testing processes. Turbines and compressors of jet engines or power plants are subjected to stringent performance verifi cation testing. Since this kind of testing is very expensive and highly demanding yet compulsory to get certifi ed tests needs to be performed properly the fi rst time. Measurement data should be safe and usable, and the personnel and test object safety must be guaranteed. Turbine testing presents particular challenges in terms of instrumentation, performance and data management. Not only is there a large variety of turbine testingspecifi c transducers, the cabling to different measuring systems is intricate and costly. Since turbines are tested for extreme conditions, the instrumentation needs to be able to withstand these harsh circumstances. Given the delicate testing setup, uninterrupted recording of all channels is crucial as is real-time monitoring, alarming, and post-processing. This continuous data recording produces very large data sets which need to be handled and shared between different departments and sites. LMS Test.Lab Turbine Testing offers an effi cient, all-digital and user-friendly solution for all these turbine testing issues. The test setup confi guration is completely digitalized and integrates signal conditioning, which offers perfect traceability and is error-free. With a few mouse-clicks, users can easily re-confi gure the entire setup. The network-enabled digital recorders with integrated signal conditioning are connected to a giga-bit network that in turn is linked to a server for online data consolidation. Measurement results are thus directly downloaded on a central server, which only requires standard IT data management and can be accessed by different departments from various sites. The LMS Test.Lab Turbine Testing solution provides excellent signal quality and maximum fl exibility. Features All-digital networked dynamic data acquisition and analysis Perfect configuration traceability and no errors Easy reconfiguration Excellent signal quality Full measurement chain control Consolidated data on central server for processing and archiving Benefits Saves time and effort with perfectly integrated data management Full data traceability thanks to integrated signal conditioning Flexible system with unlimited channel count and test duration Turbines and compressors are subjected to stringent performance verification testing. Turbine testing presents particular challenges in terms of instrumentation, performance and data management. Productive and flexible online monitoring gives confidence in the measured data. Overnight batch processing ensures faster results for potential test schedule changes. LMS Test Lab Rotating Machinery 65

66 LMS Test Lab Torsional Vibration Analysis LMS Test.Lab Torsional Vibration Analysis provides highly accurate torsional vibration analysis of rotating machinery with single or multiple shafts. The order sections can be extracted from fixed sampled frequency spectra as well as from data sampled synchronously with rpm, giving leakage-free, razor-sharp order cuts. Up to 8 rotating shafts can be investigated in real-time or off-line using the innovative QTV-module, a powerful module dedicated to the translation of tacho pulse streams into highly accurate angular velocity and displacement time histories up to a high bandwidth. All signal conditioning provided by LMS SCADAS front-ends is supported. With LMS Test.Lab Torsional Vibration Analysis, users can simultaneously acquire torsional vibration data and, narrowband spectra as well as synchronously sampled order spectra, during run-ups, run-downs or sequences of both, referenced to multiple physical tacho channels. Derived channels help monitor and process in realtime shaft angular displacement, speed, or acceleration, torsion over the shaft, belt transmission errors or other specific metrics. Acquired tacho-data can be corrected for missing or double pulses, or for unevenly spread pulses (pitch correction), while results can be flipped between RMS or peak format to match legacy data. Transmissions systems such as gearboxes and drivelines are subjected to torsional vibrations causing high noise and vibration levels. With the virtual channel calculator and the time signal calculator, engineers can further expand the measurements with virtual time histories, by recombining physical measurement channels using basic and advanced mathematical operations, or apply advanced zero-phase filtering to the acquired data. These time histories are calculated during or automatically upon completion of the measurements and stored together with the measurement channels in the same TDF-data file. Data from different measurement runs can easily be organized for batch processing. Fixed and synchronous sampling on torsional vibration signals support analysis in the time/frequency or in the angular/order domain. Features High precision and high bandwidth torsional vibration measurements Simultaneous calculation of leakage-free, synchronously sampled order sections and generic noise and vibration signals Convenient calculation of angular velocity, shaft torsion and other typical parameters Accurate insertion of pulses for missing teeth correction and correction for non-equidistant teeth Online monitoring of angular velocity irregularities, spectra, waterfalls and color maps, octave displays and order sections, and a variety of measurement status indicators Benefits Provides high precision torsional vibration analysis based on synchronous order data while acquiring narrowband waterfall data Effective test setup for noise, vibration and torsional signal measurements in a single system Provides wide range of spectral and time domain analysis tools on torsional vibration signals Support of non-lms proprietary data Pulse trains from shaft encoders or gear toothpicks are converted to rotational speed variations and processed with other vibration channels. Use the time signal calculator for removing average rpm or derive shaft torsion. 66 LMS Test Lab Rotating Machinery

67 LMS Test Lab Mobile Testing LMS Test.Lab Mobile Testing is designed to deliver optimal productivity and ease-of-use for in-field or mobile testing applications. It provides an answer to the specific challenges of outdoor or in-vehicle data collection, benchmarking or troubleshooting testing. The solution supports all LMS SCADAS front-ends. To suit specific field testing needs, LMS Test.Lab Mobile Testing makes it easy to define the sequence and characteristics of new tests, or even a complete test campaign rollout. It provides single-operator support, including remote control, flexible short-key support and enhanced user interface readability. LMS Test.Lab Mobile Testing includes the LMS Test.Lab Advanced Signature Testing module, which writes time histories for all channels directly to the PC hard disc, while monitoring online and in real-time user configurable processing functions, including order sections or any other relevant noise and vibration application function. The resulting time data files have no physical size limitations and contain all dynamic and static channels, rpm-time traces for all tacho channels and overload information for each individual channel. LMS Test.Lab Mobile Testing helps users quickly and securely validate test results and gain full confidence in the acquired data during the actual measurements. Highly responsive level indicators give an instantaneous overview of all channel levels, and provide high or low alarming capabilities on detected peak levels. The software also helps monitor the evolution of analysis results and instantly verify whether specific targets are being matched. The portable LMS SCADAS brings online processing capabilities for higher confidence during measurements. Once the data is acquired, it is immediately ready for visualization and post-processing. The user interface helps engineers interactively select specific time segments on a few channels, or batch process all channels, even from different measurement runs. The tacho scope helps verify the quality of the tacho signal before acquiring data. Features Support for LMS SCADAS Mobile front-end and PC or for LMS SCADAS Recorder front-end for data collection in recorder mode Test setup from single tests to complete test campaigns Ultra-convenient user interface Vast variety of online monitoring possibilities (status indicators, time evolution, color map) Batch throughput processing to manage multiple measurement runs simultaneously Benefits Efficient test preparation Ensures effective, reliable and convenient data recording Scalable system configuration: 4 to 256 channels in a portable, solid package Instant validation assuring high quality data Includes easy-to-use automated processing of multiple recordings Presents fast standard reporting with single button operation Rpm can be extracted from vibration or acoustic data, avoiding difficult installation of tacho sensors. The operator can listen and interactively filter data immediately after acquisition. LMS Test Lab Rotating Machinery 67

68 LMS Test Lab Angle Domain Processing LMS Test.Lab Angle Domain Processing supports in-depth analysis of engine or reciprocating machinery data as well as correlation of this data with possible noise or vibration issues. It provides an automated or interactive tool for time data conversion to angle data and for correct angle data alignment with the system duty cycle. Individual channels can have different offsets, so that data from multiple cylinders can be processed at the same time. Multiple averaging, tracking and/or triggering strategies support data processing for any stationary or semi-stationary operating condition, while system transients can be analyzed over user-defi nable data segments. An extensive list of cycle statistics can be processed within user-defi nable gates of interest, so users can investigate e.g. the evolution of peak-cylinder acceleration values and the corresponding piston impact angle within the system operating cycle. The LMS Test.Lab Angle Domain Processing solution provides angle domain analysis synchronized with the system s operating cycle in parallel to narrowband data analysis. Angle domain analysis can be done for stationary or transient operating conditions, supporting engine run-up-run-down analysis, or engine start-stop analysis respectively. Data acquisition can be performed on any LMS SCADAS front-end, and supports all available signal conditioning. The LMS SCADAS Mobile front-end supports input from incremental encoders with up to 200 khz pulse rates, while intelligent tacho conditioning supports immediate correction of missing or double pulses. Via the customized metrics calculator, users can easily enter advanced applicationspecifi c calculations like e.g. valve bounce, valve lift, etc. for valve train dynamic testing. These metrics will then be calculated in the same processing run. Data can be displayed in different formats or the X-axis can be changed instantaneously to measured tachos or slow parameters to improve correlation insights. Results can be visualized using intelligent displays that provide transparent coupling of results with underlying data, enhancing the engineer s task for root-cause analysis. Features Angle domain processing Supports all LMS SCADAS front-ends User-definable angle domain resampling with advanced automated or manual zero-reference definition Parallel processing of angle and fixed sampled data, broad list of cycle or gate statistics Intelligent and powerful displays Benefits Time domain and angle domain analysis for enhanced physical insights Single processing run for multi-cylinder data Support for stationary, pseudo-stationary and transient operating conditions Supports multi-shaft applications Order domain (zero-phase) filtering The software supports in-depth analysis of data for correlation with mechanical noise issues. Selecting time data for conversion to angle data. The customized metrics calculator helps easily enter advanced calculations, like for valvetrain dynamic testing. Intelligent displays provide transparent coupling of results with underlying data for better root-cause analysis. 68 LMS Test Lab Rotating Machinery

69 LMS Test.Lab Rotating Machinery Options LMS Test.Lab Angle CAN-bus Domain support Processing This LMS add-in Test.Lab provides CAN-bus adaptive support re-sampling provides CAN-bus of time data to acquisition the angle domain parallel whereby to data multiple gathering via revolutions the LMS front-ends. can be combined The controller into a area single network cycle and (CAN) synchronized is a message-oriented with the rotating serial or bus system reciprocating that complies engine s with the duty ISO cycle. (high Re-sampled speed) data and the can ISO be then be (low processed speed) standards. towards angle maps LMS Test.Lab according CAN-bus to any tracking support provides parameter support (rpm, torque) for the CAN or averaged 2.0B standard towards (extended a single cycle. frame Statistical format) that parameters is widely used can be in passenger calculated cars within and user-definable the J1939 standard gates for used further in trucks in-depth and analysis. buses. Multiple The CAN cylinders channels can are be handled analyzed as regular during quasi-static a single processing channels, run. and can be used as tracking channels or give more annotation to dynamic data. LMS Test.Lab Harmonic Audio Replay Tracking and Filtering (Kalman Processing) This add-in option to supports the time user-intuitive signal calculator audio presents replay using the Kalman the available filtering PC technique audio facilities to track and sine, provides sine interactive sweeps real-time and other filtering harmonically during replay. related Replay signals. sessions It is ideal can for conveniently extreme slew be rate initialized applications. from Extracted multiple LMS time Test.Lab histories displays. can be viewed The original as function time traces of time are or automatically rpm. The add-in retrieved includes and subjective visualization noise evaluation via strip can be chart closely displays, integrated and provides into the the standard option measurement to store the calculated process. results. LMS Test.Lab Harmonic Run Data Averaging Removal and Comparison Organizer When This worksheet performing provides operational a comprehensive modal analysis view on on structures all available with 2D rotating data (order components, sections, such frequency as sections, helicopters octave or spectra rotating or machinery octave sections) (in either and stationary is designed or slowly to quickly varying compare RPM), and component average harmonics results from could various influence tests for test validation results. With and/or the processing. LMS Test.Lab Selected Harmonic data Removal is immediately add-in, the harmonic displayed contents via powerful from display-filling the time data modes can be in filtered user-defined out. screen layouts. Embedded navigation supports fast scrolling across functions or measurement points. Individual measurements are included or excluded from automatic average and envelope calculations by tick-box selection. Averages and envelopes can be stored in project databases. LMS Test.Lab Time Variant Recording Frequency Analysis This add-in option to provides LMS Test.Lab raw time Throughput history recording Validation while & Processing performing Host tracked includes measurements several time/ and frequency online narrow techniques band analysis that can (waterfall, determine orders, the instantaneous spectra). The signal throughput frequency data is content directly and written present to the result host PC as disc a frequency in TDF or versus LDSF time format, map. without The add-in affecting includes the online time history measurement and color performance. map visualization of the frequency domain results. It includes short time FFT and continuous wavelet transformation. LMS Test.Lab Off-line Time Data RPM-extraction Signal calculator The Measured LMS Test.Lab time recordings Off-line RPM-extraction can be expanded add-in with supports virtual rpm-time histories traces by recombining calculation starting physical from measurement accelerometer channels or microphone using basic data. and advanced On a color mathematical map, users can operations. select single These or multiple time histories points can be to calculated indicate important automatically orders upon according measurement to the rotational completion speed and stored causing together them. Based with the on this measurement selection, the channels tool will in automatically the same TDF extract or LDSF an data rpm-time file. They trace can from be the processed data, which simultaneously can be used during for further off-line order throughput analysis. processing. Multiple methods With dedicated are available data to validation tackle the and most selection, challenging data rpm from evolutions different measurement (e.g. turbo rpm runs behavior). can organized The tool can and also combined be used for to batch extract processing. non-rpm related signal evolution versus time (e.g. in case of hybrid powertrains). LMS Test.Lab Rotating Machinery 69

70 LMS Test.Lab Rotating Machinery Options LMS Test.Lab Signature Throughput Processing LMS Test.Lab Signature Throughput Processing provides efficient processing of multiple throughput files with a common set of processing parameters. Tracking channels (e.g. tacho) can be used to control the selection of time data segments to be processed. The module supports trial processing on a limited number of channels as well as batch processing, including autosaving of results which can be interrupted at any time. It also includes a convenient preview of processing results with display auto switch depending on the type of results. LMS Test.Lab Signature Data Post-processing This solution helps analyze and post-process tracked spectral data (narrow band data of run-ups or run-downs) in a signature testing process. It contains a comprehensive list of functions for global problem characterization as well as any further processing necessary to gain a deeper insight into physical processes like FFT, octave mapping, waterfall averaging, merging multiple runs, calculating order sections, frequency sections, loudness and sharpness. LMS Test.Lab Multi-reference Post-processing LMS Test.Lab Multi-Reference Post Processing offers efficient processing of multiple throughput files with a common set of processing parameters. LMS Test.Lab Multi-Reference Post-processing is supported for stationary measurements such as time data recorded in the spectral acquisition application; autopower and crosspower can be processed. LMS Test.Lab Multi-Reference Post-processing offers multiple input and output FRFs (H1, H2, Hv), partial coherence and transmissibility off-line processing with autopower and crosspower as input. LMS Test.Lab ANSI-IEC Octave Filtering This add-in helps apply time domain-based 1/1, 1/2, 1/3, 1/6, 1/12 or 1/24 octave filters. The resulting time traces (each corresponding to individual octave bands) are then further processed by applying tracking and triggering, which eventually results in octave maps. The add-in can be used during acquisition or during off-line throughput processing. LMS Test.Lab Order Tracking This add-in provides synchronously sampled data and accurate order tracking in case of fast run-ups/run-downs or closely spaced orders. The add-in presents real-time results when loaded in the LMS Test.Lab Standard or Advanced Signature Testing applications. Alternatively, the results can be loaded in the LMS Test.Lab Signature Throughput Processing solution to extend the off-line processing capabilities. 70 LMS Test.Lab Rotating Machinery

71 LMS Test.Lab Angle Domain Processing This add-in provides adaptive re-sampling of time data to the angle domain whereby multiple revolutions can be combined into a single cycle and synchronized with the rotating or reciprocating engine s duty cycle. Re-sampled data can then be processed towards angle maps according to any tracking parameter (rpm, torque) or averaged towards a single cycle. Statistical parameters can be calculated within user-definable gates for further in-depth analysis. Multiple cylinders can be analyzed during a single processing run. LMS Test.Lab Harmonic Tracking (Kalman Processing) This add-in to the time signal calculator presents the Kalman filtering technique to track sine, sine sweeps and other harmonically related signals. It is ideal for extreme slew rate applications. Extracted time histories can be viewed as function of time or rpm. The add-in includes visualization via strip chart displays, and provides the option to store the calculated results. LMS Test.Lab Harmonic Removal When performing operational modal analysis on structures with rotating components, such as helicopters or rotating machinery (in either stationary or slowly varying RPM), component harmonics could influence test results. With the LMS Test.Lab Harmonic Removal add-in, the harmonic contents from the time data can be filtered out. LMS Test.Lab Time Variant Frequency Analysis This add-in to LMS Test.Lab Throughput Validation and Processing includes several time/ frequency techniques that can determine the instantaneous signal frequency content and present the result as a frequency versus time map. The add-in includes time history and color map visualization of the frequency domain results. It includes short time FFT and continuous wavelet transformation. LMS Test.Lab Off-line RPM-extraction The LMS Test.Lab Off-line RPM-extraction add-in supports rpm-time traces calculation starting from accelerometer or microphone data. On a color map, users can select single or multiple points to indicate important orders according to the rotational speed causing them. Based on this selection, the tool will automatically extract an rpm-time trace from the data, which can be used for further order analysis. Multiple methods are available to tackle the most challenging rpm evolutions (e.g. turbo rpm behavior). The tool can also be used to extract non-rpm related signal evolution versus time (e.g. in case of hybrid powertrains). LMS Test.Lab Rotating Machinery 71

72 LMS Test.Lab Transfer Path Analysis Understanding the root causes of noise and vibration problems 72 LMS Test Lab Transfer Path Analysis

73 LMS Test Lab Transfer Path Analysis 73

74 LMS Test.Lab Transfer Path Analysis Understanding the root causes of noise and vibration problems The LMS Test.Lab Transfer Path Analysis solution provides a systematic approach to test-based engineering processes and focuses engineering efforts on the components that matter the most. As a method to fully understand vibro-acoustic behavior, TPA assists in troubleshooting vibro-acoustic issues and setting performance targets for each critical component. In complicated structures with various sub-assemblies (such as cars, aircrafts or ships) vibro-acoustic phenomena at a certain location may have been caused by a remote vibration source. For example, the energy from a car engine is transmitted into the passenger cavity by a number of different routes: from the engine mounts, the exhaust system connection points and indirectly even via the drive shafts and the wheel suspension. Airborne contributions from the intake or exhaust system may also add to the vibro-acoustic issues. These noise and vibration problems can be addressed by enhanced transfer path analysis techniques, which help engineers detect root causes of such issues early on in the design cycle. LMS Test.Lab provides a highly efficient solution to identify noise problems and their origins as well as quickly evaluate design improvements. From troubleshooting to root cause analysis Transfer Path Analysis or TPA is used to identify and assess structureborne and airborne energy transfer routes from the excitation source to a given receiver location. Once the sources and their paths have been quantified and modeled, it is a relatively straightforward design task to optimize the system. Transfer path analysis sets out to quantify the various sources and their paths and figure out which ones are important, which ones contribute to the noise issues and which ones cancel each other out. The source-transmitter-receiver model: a systematic approach The LMS Test.Lab Transfer Path Analysis solution is based on the source-transmitter-receiver methodology. All noise and vibration issues originate at a source and are transmitted through airborne or structure-borne transfer paths to a given receiver location where the vibro-acoustic disturbances are perceived. Solving vibro-acoustic issues can be done by acting on the source, the transmission path or the receiver, or by addressing several of these elements. The goal of transfer path analysis is to calculate the vector contribution of each energy path from the source to the receiver. Components along that path can be identified and thus modified to solve a specific problem. Alternatively, TPA helps optimize the product design by choosing effective and desirable characteristics for these components to avert noise and vibration problems. The most complete solution package on the market LMS Test.Lab Transfer Path Analysis is packed with enhanced features that promise to help every test department save time and resources. With the broadest portfolio of TPA solutions on the market, LMS Test.Lab helps customers tackle issues from every possible angle from simple systems to complex structures. LMS Test.Lab TPA features a wide range of TPA techniques, such as LMS Test.Lab Single Reference Transfer Path Analysis and Airborne Source Quantification, LMS Test.Lab Multi-reference Transfer Path Analysis, LMS Test.Lab OPAX Transfer Path Analysis solution and LMS Test.Lab Time Domain TPA. Managing vast amounts of data LMS Test.Lab Transfer Path Analysis is designed to manage data collected during measurement campaigns in a convenient and efficient way. Using embedded documentation, like function class or point IDs, transfer functions and operational data are automatically sorted through easy transfer path model definition. The automated procedures eliminate data handling errors and make the process as productive as possible. Similar processing can be simultaneously applied to different operating conditions. For engine transfer path analysis, engineers will typically prefer to analyze the most important orders during run-up or run-down. Working on spectra in different formats (spectrum, autopower, 1/3 octave) is also completely supported by the solution. 74 LMS Test Lab Transfer Path Analysis

75 LMS Test.Lab Transfer Path Analysis focuses on ease-of-use and productivity. Engineers appreciate the workflow-oriented GUI, the powerful data management that continuously checks data and minimizes translation issues and operator errors. The productivity enhancing features like active displays make it possible for any person in the organization to dive into the data and investigate it from all possible angles to achieve the best understanding of the TPA results. Easy results interpretation LMS Test.Lab Transfer Path Analysis helps users perform data processing and results interpretation fast and efficiently. The enormous amount of TPA results is easily accessibly and clearly organized. For each operational condition and transfer path, the operational forces can be retrieved and accessed. To quickly visualize the relative importance of the different paths, a color display shows the amplitude of the partial contributions for all selected paths as a function of rpm or frequency. The LMS solution helps users analyze the interior acoustic response both objectively and subjectively and identify the disturbing spectral components or even the lack of masking constituents. For those frequencies, the operating and laboratory data are combined to quantify the contributions of the various sources and their paths. Once the sources and their paths have been quantified and modeled, it is a relatively straightforward design task to optimize the system. The various TPA techniques can be expanded to support what-if scenarios, whereby loads and/or transfer paths can be interactively modified and visually evaluated in real-time. Multiple modifications can be compared against each other, by a single mouse-click, which greatly enhances the target setting process. Backed by years of experience The solution incorporates years of market leadership, assuring maximum data quality and avoiding operator errors. It also provides enough engineering freedom to tune the process to the specific needs of each problem. With the final contribution analysis, the system can be examined in multiple dimensions, using comprehensive 4D displays. LMS Test.Lab Transfer Path Analysis is based on extensive consolidated hands-on experience, which has been translated into innovative extensions that help engineers solve mission-critical noise and vibration issues. LMS Test Lab Transfer Path Analysis 75

76 LMS Test Lab Single Reference Transfer Path Analysis and Airborne Source Quantification LMS Test.Lab Single Reference Transfer Path Analysis helps engineers trace the fl ow of vibro-acoustic energy from a source, through a set of known airborne and structureborne pathways, to a given receiver location. The solution supports contribution analysis for single source noise or vibration issues, during stationary or run-up and run-down operating conditions. Airborne and structure-borne paths can be analyzed together or separately, using frequency response functions and operational data. The LMS Test.Lab Single Reference Transfer Path Analysis solution includes LMS Test.Lab s very convenient workfl ow. At each stage of the process, clear userfeedback is given. The source-transfer-receiver model is deployed in a very fl exible way, with different data sets that can be easily compared against each other for the different operating cases under investigation. Operational forces can be accurately defi ned using the complex stiffness and matrix inversion methods. ASQ on a washing machine helps identify the panel contribution to the overall noise level. The complex stiffness method is used to identify transfer paths in cases where the source side is connected to the receiver via mounts. The operational forces can be determined from knowledge of the complex dynamic mount stiffness and the differential displacement over the mount during operation. The matrix inversion method is used to identify operational loads when the stiffness curve is unknown or for rigid connections. The technique is based on inversion of a measured accelerance matrix between structural responses on the receiver side due to force excitation. LMS Test.Lab Airborne Source Quantifi cation (ASQ) quantifi es acoustic source strengths and their airborne transmission paths under stationary or run-up and rundown operating conditions. The method helps quantify operational acoustical loads from single point sources, multi-point sources, or even multiple partially correlated acoustical sources. Multiple techniques are supported: point-to-point surface sampling, sound intensity measurements and matrix inversion. The solution supports also the quantifi cation of vibration loads, separately or at the same time. Acoustical Transfer Functions are measured using volume velocity source excitation techniques. Engine TPA identifies structural contribution of the engine mount. Throughout the entire application, display layouts will automatically switch to layouts specifi c for the data evaluation at hand. The solution helps engineers easily manage vast amounts of analysis data. Features Convenient data management Assisted selection of FRF and operational data Workflow-oriented solution with user guidance Context sensitive display layouts and contribution analysis (4D displays) Convenient comparison of multiple data sets Benefits Systematic approach to vibroacoustic refinement Common solution for structural and acoustic source quantification Ease-of-use for optimal productivity Supports multiple vibration or acoustical load quantification techniques 20-year experience of enhanced engineering insights LMS Test.Lab TPA includes an advanced 4D display that helps analyze results from every angle. The analysis yields efficient and structured TPA model definition. 76 LMS Test Lab Transfer Path Analysis

77 LMS Test Lab Multi-reference Transfer Path Analysis LMS Test.Lab Multi-reference Transfer Path Analysis supports contribution analysis for multi-source noise and vibration issues. The complex analysis of multiple partiallycorrelated sources is reduced to multiple analyses of independent, uncorrelated sources by using singular value decomposition. Each individual uncorrelated source can be investigated using the LMS Test.Lab Transfer Path Analysis solution. Structureborne and airborne paths can be analyzed together or separately, using frequency response functions and operational data. The fi nal analysis will recombine the results of the individual sources to investigate their combined effect on the target location. Features Workflow-oriented solution Solution for single and multi-source issues Convenient source-transfer-receiver model and data management Wide range of load identification techniques Context sensitive display layouts and contribution analysis LMS Test.Lab Multi-reference Transfer Path Analysis is particularly adapted to road noise analysis. It helps engineers understand the noise source when the car is on the road, independently from the engine noise. In the fi rst step, Principle Component Analysis (PCA) decomposes the road noise into principle components. Transfer path analysis will then be applied on single decorrelated components in a second step. The convenient workfl ow of LMS Test.Lab Multi-reference Transfer Path Analysis even helps users perform principle component analysis and transfer path analysis sequentially. Operational forces can be accurately defi ned using the complex stiffness and the matrix inversion methods. The solution offers easy management and analysis of large databases. It greatly simplifi es analysis of the structure in different operating conditions and provides easy data comparison. Benefits Ease-of-use for optimal productivity Supporting multiple vibration or acoustical load quantification techniques Convenient comparison of multiple data sets Support for stationary operating conditions TPA techniques are applicable for single coherent sources and for multiple partially-correlated sources. Managing large databases of TPA models. With PCA, engineers decompose the excitation in orthogonal components and select relevant ones. Result worksheets provide fast and easy comparison between operational conditions or configurations. LMS Test Lab Transfer Path Analysis 77

78 LMS Test Lab OPAX The unique LMS Test.Lab OPAX solution is a fast, test-based procedure which supports troubleshooting of vibro-acoustic problems in a very effi cient and reliable way. LMS breakthrough approach is nearly as accurate as conventional TPA and almost as fast as traditional operational path methods that often fail to identify the root cause of vibrations and fi nd remedies to NVH problems. The LMS Test.Lab OPAX solution separates loads and transfer paths so that vibro-acoustic energy can easily be traced right from the source, through a set of known structure-borne and airborne pathways directly to a given receiver location. This helps engineers accurately identify the root cause of the problem quicker than ever before with the minimum of time-consuming measurements. The solution supports contribution analysis for stationary or runup and run-down operating conditions. Structure-borne and airborne loads can be estimated together or separately, using a minimum set of additional indicators to increase the reliability of the estimated loads. The LMS Test.Lab OPAX solution follows the same convenient workfl ow as other LMS Test.Lab Transfer Path Analysis-based solutions. At each instance of the process, clear user-feedback is given. The TPA source-transfer-receiver model can be fi lled up in a very fl exible way, with different data sets that can be easily compared against each other for different operating cases under investigation. Operational loads can be defi ned accurately using the SDOF-estimator or band-estimator methods. Users can further increase the data reliability by adding information about the actual physics of the investigated system to the estimation process. Throughout the application, display layouts will automatically switch to layouts specifi c for the data evaluation at hand. Features Convenient source-transfer-receiver model and data management SDOF and band parametric models for loads estimation Possibility to include indicators for higher accuracy and missing path compensation Context-sensitive display layouts and contribution analysis (4D displays) Benefits Maximum accuracy with a minimal set of measurements Ease-of-use for optimal productivity Models that correspond to mount physics Enhanced engineering insights The use of parametric models helps reduce the number of required measurements. LMS Test.Lab OPAX simultaneously analyzes acoustic and structural contributions. With vector contribution, users can compare the relative contribution of the different paths. Immediate and complete visualization of results per contribution. 78 LMS Test Lab Transfer Path Analysis

79 LMS Test Lab Time Domain Transfer Path Analysis LMS Test.Lab Time Domain Transfer Path Analysis is a solution to identify transfer paths in the time domain. This solution provides accurate identifi cation of transfer paths related to a specifi c event in the time domain. Compared to frequency domain TPA, the LMS Test.Lab Time Domain TPA lets engineers analyze transient phenomena. Users can listen to the partial path contribution and compare it to the target sound. The path contributions are not refl ected as spectra but as time-domain contributions. These contributions can then be used for further analysis, such as signature throughput processing. Any processing can be applied to the partial path contribution, such as acoustic metrics. Features Workflow-oriented solution Joint model definition with frequency domain TPA Wide range of load identification tools Time domain TPA analyses can be applied to various phenomena. It is particularly useful to understand phenomena of transient excitations (engine start-up), semistationary excitations (idle noise) as well as analyze any other signal for which it is crucial to listen to the produced sounds. The solution can further be used to make a detailed modulation study. Time domain TPA complements frequency domain TPA. While frequency domain TPA gives a better overview on vibro-acoustics issues, time domain TPA provides users with more detailed information about transitory occurrences and offers time domain preand post-processing. LMS Test.Lab Time Domain Transfer Path Analysis is a fast and easy-to-use solution for analyses on transient events and offers users a wide range of load identifi cation techniques. Benefits Ease-of-use Possibility to listen to partial path contributions Time domain TPA is used to analyze transient phenomena. With LMS Test.Lab Time Domain TPA, users can listen to partial contributions without sound distortion. Fast FFT convolution helps compute the partial contribution in time domain. The time domain contributions can be processed with other LMS Test.Lab applications for further analysis. LMS Test Lab Transfer Path Analysis 79

80 LMS Test.Lab Transfer Path Analysis Options LMS Test.Lab Component Editing With the LMS Test.Lab Component Editing add-in, users can edit different components of the TPA model (force, FRF), and immediately evaluate the effect of these changes on the path contribution. Graphical editing of the FRF and/or forces is supported; individual path or case contributions can be enabled or disabled. The changes can be saved as a new model, and the different models can be compared against each other. LMS Test.Lab Virtual Car Sound LMS Test.Lab Virtual Car Sound can be used for general sound design and target setting as well as advanced vibro-acoustic troubleshooting in the vehicle refinement stage. Starting from experimental or CAE data, a sound quality equivalent model (SQE) is generated that decomposes the interior car noise into powertrain, road/tire, and wind noise. The SQE model is equivalent in quality and features to the original sound. For troubleshooting and target setting applications, the model can be refined with a TPA model to study the different structure-borne and airborne path contributions. The LMS Test.Lab Virtual Car Sound solution is mainly applied to vehicles, but can be helpful when analyzing issues found in other rotating machinery products and components. LMS Test.Lab Principal Component Analysis LMS Test.Lab Principal Component Analysis helps users reduce complex noise and vibration problems to more manageable, independent, and uncorrelated problems with multiple, partially correlated references. These problems range from structure-borne road-noise to the combined effects of air-conditioning compressor and engine noise. By applying singular value decomposition techniques on a multi-reference crosspower matrix, this matrix is decomposed into its principal components, yielding as many single reference sets of crosspowers as there are references. The solution also features other functions such as virtual coherence and virtual spectra. Principle component analysis results can be used for further transfer path analysis. LMS Test.Lab Multi-reference Post-processing This add-in provides off-line multi-reference spectral processing on crosspower, FRF, partial coherence and transmissibility. It can be used separately and will then only support stationary averaging. It can also be used together with signature throughput processing to include tracked processing. The calculated transmissibilities can be used in LMS Test.Lab Transfer Path Analysis to perform a response-only operational path analysis. Autopower and crosspower spectra can be used as input for a principal component analysis. LMS Test.Lab Time Domain TPA The LMS Test.Lab Time Domain TPA add-in is the ideal solution to decompose transient and semi-stationary responses into path contributions. Starting from a TPA model (direct, mount stiffness, LMS OPAX, single path inversion or matrix inversion), it provides the analysis and auralization of the time domain contributions. The contribution time traces are available for further analysis with for example signature throughput processing or sound diagnosis. 80 LMS Test.Lab Transfer Path Analysis

81 LMS Qsources - Structural and acoustic exciters Integral Shaker The integral shaker is a unique inertial shaker especially designed for FRF measurements. It contains both force and local acceleration sensors, yet it is very compact and able to generate a high force. Thanks to its patented suspension, the mass loading is kept to a minimum and its selfaligning behavior makes it perfect for excitation in all direction of various systems. The integral shaker is able to generate a force of 6N rms with a flat spectrum over a frequency range from 22 up to 2200Hz. The integrated transducers are ICP-type sensors, fully compatible with the LMS SCADAS III input modules. The shaker is ideal for use in difficult-to-reach excitation locations where high input force is required. Low-frequency volume sources Volume acceleration sound sources are acoustic excitation devices. The source is capable of producing very high noise levels, sufficient for the excitation of complete systems. The integrated volume acceleration sensor gives a real-time feedback of the source strength and can directly be used as a reference for FRF-measurements, without any post-processing. The low-mid frequency source is designed to be used in the 10 to 800 Hz frequency band which covers the most important frequency band for noise source analysis during system development. The lowfrequency volume source was deliberately made to simulate the acoustic properties of a person at low frequencies. The device is optimized for quick positioning on a seat with the acoustic center at ear location. Mid-frequency volume sources This acoustic exciter covers the 200 to 8000 Hz frequency band and provides an accurate realtime reference signal of the acoustic source strength, essential for accurate transfer function measurements. The sound is generated in a high pressure driver and transferred to the nozzle by a flexible tube. The nozzle will distribute the noise as a monopole source. The nozzle is so small that the omni-directionality of this source becomes comparable to that of a ½ inch microphone. The mid to high frequency volume acceleration sound source offers numerous advantages: positioning flexibility, high impedance, compact size, omni-directionality, time stable sensitivity, high noise levels, and real-time volume acceleration signal. Miniature shaker This miniature shaker provides excitation with very low mass and stiffness loading of the test object. The system includes integrated force and acceleration transducers with constant sensitivity between Hz. Engineers can thus obtain driving point FRFs in a fast way. The shaker is designed to introduce forces in places that are inaccessible for conventional shakers and unpractical for impact hammers. The excitation device, including sensors, is designed within a sphere of 41 mm providing a perfect solution for all those hard-to-reach excitation locations. This self-supporting device improves testing efficiency by eliminating all of the support and alignment work associated with conventional shaker testing. To increase measurement speed, the shaker can be easily glued to the test object. Miniature volume sources This miniature acoustic exciter can be used as a compact low-level volume displacement source. The sound source is suitable for lower frequency reciprocal acoustic transfer function measurements in special situations. Local FRFs between nozzle acoustic centers and local indicator microphones can be captured efficiently and accurately. The same acoustic exciter can also be used as a low-frequency microphone. With only 74mm in length, this sound source-receiver can be used in minimal space with minimal diffraction disturbance, and at a lower excitation level. As a microphone, the device is suited for locations with high levels of low frequency noise and/or high airflow conditions. Typical applications are airborne source quantification (ASQ) of intake and exhaust systems and vibro-acoustic modal analysis. It covers a frequency range from Hz in which the reference sensor exhibits a constant sensitivity behavior. LMS Test.Lab Transfer Path Analysis 81

82 LMS Test.Lab Vibration Control Complete solutions for vibration and shock testing 82 LMS Test Lab Vibration Control

83 LMS Test Lab Vibration Control 83

84 LMS Test.Lab Vibration Control Complete solutions for vibration and shock testing LMS Test.Lab Vibration Control offers a complete 4 to 8 channel solution for closed loop vibration control testing. The LMS Test.Lab system helps test engineers easily certify and homologate their products, ensuring they can cope with external excitation and vibration conditions. These can range from normal to very extreme conditions, and also include rough transportation circumstances. LMS Test.Lab Vibration Control combines optimal ease of use with the performance and the reliability of an advanced system. The system offers accurate closed-loop shaker control and a maximum of built-in safety mechanisms which minimize the risks of damaging costly test items. User guidance and secure automation capabilities deliver maximum productivity and enable testing teams to meet critical deadlines. The LMS Test.Lab software is specially designed to work with the LMS SCADAS III controller hardware system that incorporates 24-bit ADC and DAC technology. This tight integration delivers an optimal loop speed and guarantees maximum safety. LMS Test.Lab Vibration Control at a glance: Control and analysis software for sine, tracked sine dwell, random and shock vibration testing Integrating common industry standards and supporting user specific test definitions 4 to 8 input channels with embedded signal conditioning, 24 bit DSP technology and 105 db signal to noise ratio Safe, accurate and fast closed-loop shaker control up to 20 khz Fully compatible with electro-dynamic shakers and hydraulic actuators Expandable with extensive analysis and advanced control features 84 LMS Test.Lab Vibration Control

85 LMS Test.Lab Vibration Control is an entry-level vibration control solution with high-end performance: Maximum productivity and flexibility to qualify products faster Optimal ease of use and built-in user guidance guarantee a short learning curve Extensive safety routines and fail-safe hardware provide full protection of test objects Secure automated testing to cover lengthy and complex testing campaigns Extensive analysis capabilities to efficiently interpret test results Qualifying products for real-life operating conditions LMS Test.Lab Vibration Control helps test engineers qualify whether a product will withstand normal to extreme operating or transportation conditions. LMS Test.Lab offers a complete and fully integrated solution to reproduce vibration environments, supporting basic functional testing up to complex life cycle testing. The system can easily be extended with advanced analysis tools to further support engineers in product development. LMS Test.Lab Vibration Control supports qualification testing through closed-loop shaker control, using 4 to 8 simultaneous ICP or voltage channels for control or measurement. With a focus on qualifying components, the LMS Test.Lab system is designed for long-duration durability testing including online damage monitoring and trend analysis. Supporting common standards offering maximum flexibility The LMS Test.Lab Vibration Control system supports random, swept sine, tracked sine dwell, shock and combined test modes. LMS Test. Lab Vibration Control integrates all common industry standards for vibration and shock testing. In addition, the system offers a high degree of flexibility in vibration test definition to support non-standard test specifications, allowing the usage of more complex test profiles derived from field data using test tailoring. This provides a safe, accurate and fast reproduction of the target reference spectra on a shaker installation, using up to 8 control/measurement channels. LMS Test.Lab Vibration Control 85

86 LMS Test.Lab Vibration Control Convenience, productivity and safety Smart test routines for optimal productivity Smart test routines and the intuitive user interface of LMS Test.Lab Vibration Control deliver optimal productivity throughout the testing cycle. Users directly launch predefined standard test campaigns from their desktop, without having to worry about specific parameter settings. The test procedures embed all the details on the actual test setup and can be complemented with digital images. All test results are automatically annotated with consistent header information and stored in a searchable database, together with full information on the test setup and the complete test logging. Predefined test procedure including formatted user attributes, notes and an attachment describing the details of the test setup. Predefined test procedures Searchable databases for data and reports File-explorer based data navigator Test procedures embed test details and setup information Vibration control made easy The LMS Test.Lab system guides users in the definition of standard and more complex test profiles, which eliminates possible errors before starting the actual test. The system also supports the definition of schedules for complex endurance programs, including loops and the execution of external applications. For trend analysis, automatic measurements can easily be programmed and scattered during each level of the test. An embedded digital scope assists the operator in troubleshooting the measurement setup and quickly diagnosing possible problems. Embedded digital scope for fast setup troubleshooting. Multiple channels can be displayed simultaneously in time or frequency domain. Expert system for optimal user guidance during test processes Digital scope to troubleshoot possible problems Ready for all common industry standards No need for tedious post-processing thanks to online processing and automated trend analysis Full test object protection LMS Test.Lab includes a fully automated SelfCheck procedure, which verifies the control loop for integrity and safety before running the actual test. The SelfCheck procedure starts with measuring the background noise on all channels, after which it injects a low-level shaped random into the loop. It then automatically ramps up the amplitude in user-defined stages until a specified signal-to-noise ratio is met, or until the drive reaches a specified limit. Finally, LMS Test.Lab measures the system response using a compensated spectrum, and prevents the initiation of the test in case of error detection. Automated pre-test (SelfCheck) procedure prevents test initiation without proper control feedback. Fail-safe test verification through a fully automated SelfCheck procedure, including peak and overload prediction Full protection against operation beyond shaker limits Measurement chain validation for each individual measurement channel Prevention of test initiation without proper control feedback 86 LMS Test.Lab Vibration Control

87 Safe and accurate vibration control The LMS SCADAS III controller hardware has been designed with safety as a primary objective. The entire measurement chain is continuously monitored during testing for open or short circuits. Overload checks are carried out on several places in the signal paths, including upfront, full bandwidth checks on the anti-alias filters. Dedicated hardware circuits guarantee smooth shutdown of the output signals, even in case of power failure, to protect the structure under test. During closed-loop control RMS and line-by-line abort checking, the system performs single or multipoint control, drive limitation, sigma clipping, continuous open channel and overload checks. Fast loop times ensure a safe and reliable control loop with 100% test object protection. Comprehensive feedback on line-by-line abort status through bar display. Fast, accurate and reliable control loops Fail-safe hardware with smooth shutdown guaranteed, communication time-outs, continuous overload monitoring Fail-safe software developed according to ISO 9001 standards with extensive quality control Secure automated testing The test sequencing scheduler in LMS Test.Lab increases safety and productivity in case of product tests that require complex and extensive test profiles. Swept sine, random, shock and combined modes tests can be automatically sequenced, repeated and synchronized with external equipment. Alarms are permanently checked to properly interrupt the vibration control test and the external equipment when required. The measured data and run logging are automatically saved in the LMS Test.Lab project database. or SMS messages can automatically be sent to keep the operator up-to-date on the progress of the test. Efficient long duration test monitoring Sine, random, shock control, combined modes sequencing Vibration test synchronization with external equipment like climatic chambers Synchronization of vibration testing with functional or climatic testing is supported through digital I/O based remote control. Flexible analysis and effective communication In addition to the online processing capabilities, LMS Test.Lab Vibration Control offers analysis tools for the most demanding testing campaigns. With the help of intuitive data navigation, user attribute-based search, comprehensive analysis functions and powerful displays, users can quickly visualize and interpret data, and analyze test results. LMS Test.Lab automatically generates reports with a single mouse click, which eliminates the extensive effort to document the entire test campaign. Full compatibility with Microsoft Office and embedded support of OLE/ActiveX technologies turns static reports into dynamic information files. Readers can dynamically adapt axis scaling, add cursors and change legends to create their own customized view on the test results. LMS Test.Lab Vibration Control enables testing teams to move beyond the simple passed or failed test result, and to effectively visualize, analyze, report and share their work with others. Activating the Animation tab upon completion of sine control test for structural analysis. Comprehensive analysis functions provide full insight into test results Automated and customizable report generation for test setup, SelfCheck, run logging and test data Embedded ActiveX support animates static reports LMS Test.Lab Vibration Control 87

88 LMS Test Lab Vibration Control - Standard LMS Test.Lab Vibration Control - Standard offers a complete solution for the certifi cation and homologation of products and components, to ensure they can cope with external excitation and vibration conditions (normal operations, extreme operations, transport). It includes the LMS SCADAS 302VB front-end with 4 channels for control and measurement, the LMS Test.Lab Desktop - Standard and all LMS Test.Lab Vibration Control applications. LMS Test.Lab includes reliable, effi cient and robust control algorithms and delivers a safe, accurate and fast reproduction of the target test profi les on electro-dynamic shaker or hydraulic actuator installations. The Test.Lab controller is confi gurable to support single and averaged, minimum, maximum or weighted multi-point control strategies from 0.025Hz up to 20kHz control bandwidth. During closed-loop control, the system combines monitoring functions, simultaneous acquisition, processing and visualization of all control and measurement channels with immediate feedback on test progress and control quality. For long duration testing, users can activate an automated trend analysis, including a comparison with previous measurements, without interrupting the test sequence. The test setup is simplifi ed with a consistent mapping between common industry standards and the LMS Test.Lab Vibration Control Standard test parameter defi nition. The ergonomic control panel shows all critical information at any time and offers a wide choice of online display options and clear abort and overload messages. At all times, test operators are presented the required information to make the right decision. Features Swept sine control Tracked sine dwell Random control Shock control (classical pulse, measured pulse and shock response analysis) Control bandwidth up to 20 khz Single and averaged, minimum, maximum or weighted multi-point control strategy Real-time calculation and online visualization Supports all common industry standards Non-standard user specific test profiles Integrated Digital Scope and SelfCheck Automated reporting Benefits Novice users can get started with minimal training Built-in user guidance increases efficiency and minimizes errors Full protection of the tested objects Extensive analysis capabilities to efficiently interpret test results Smooth reporting to easily share results Simultaneous online processing of harmonic, RMS, peak and average estimators during sine control. Random control with user configurable display improve ease of use for operators. Automatic resonance identification for easy tracked sine dwell testing. MIL-STD and GAM-EG-13 standards compatible system for shock control. 88 LMS Test Lab Vibration Control

89 LMS Test Lab Vibration Control - Advanced LMS Test.Lab Vibration Control - Advanced consists of all the modules of LMS Test.Lab Vibration Control - Standard, supplemented with the LMS Test.Lab Desktop - Advanced and LMS Test.Lab Test Sequencing modules. LMS Test.Lab Vibration Control Advanced complements the standard solution with a test sequencing scheduler for secured automated testing. This scheduler allows the fully secured automation of unattended long-duration qualifi cation tests with multitype vibration control. It can mix all the test modes (swept sine, random and shock), do loops, pause commands and a variety of automated pre-test options. In addition, it is possible to automatically run a MS Windows program as part of the schedule, for example to keep the operator up to date on the progress of the test sequence via or SMS. Through the digital I/O based remote control, the system can control other equipment in the lab and synchronize vibration testing with e.g. functional or climatic testing. The advanced solution also offers a set of customization capabilities to adapt the LMS Test.Lab user environment and tune the workfl ow of the testing process. Users create their dedicated test procedures by locking specifi c parameters to fi xed values. The workfl ow tuning also extends the usage of the system from vibration qualifi cation testing to more advanced noise and vibration refi nement tests. Dedicated noise and vibration analysis add-ins are easily activated and become an integral part of the LMS Test.Lab vibration qualifi cation workfl ow. 3D visualization of measurement results for structural analysis or access to any other LMS Test.Lab analysis module is only one click away. This eliminates tedious data exports to more advanced analysis applications. Features Scheduler for swept sine, random and shock test modes Remote communication Communication with external equipment Test status report via or SMS Parameter locking Workflow tuning Benefits Secure automation of long duration test schedules Control peripheral equipment during the vibration test Customize the vibration qualification testing workflow to specific procedures Extend vibration qualification test to advanced refinement analyses Test sequencing allows secured automated testing in case of long duration endurance tests. Undesired parameters can be locked to fixed values using parameter locking. Test sequencing combines vibration and temperature tests by remote control of the climate chamber. The application workflow can be enriched with advanced analysis tools. LMS Test Lab Vibration Control 89

90 LMS Test.Lab Vibration Control Control options LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting enable users to effectively protect test items against over-testing. While the average control signal level will match its reference spectrum, the response at particular points of the tested object may be very different, due to the resonances of the device under test. The vibration level at any channel (control or measurement) is limited by an auxiliary reference profile for maximum protection of the test item. Combined Modes The LMS Test.Lab Sine on Random (SoR) module offers the possibility to define a background noise level combined with up to ten fixed and sweeping sine tones. LMS Test.Lab Random on Random (RoR) option offers the user the possibility to define a background noise level combined with an unlimited number of fixed and sweeping narrow-band signals. Both options in combination with LMS Test.Lab Random Control allow the definition of complex profiles, typically called Sine on Random on Random (SoRoR). LMS Test.Lab Shock Response Synthesis LMS Test.Lab Shock Response Synthesis synthesizes a time waveform that corresponds to a user defined shock response using a series of superimposed wavelets. The synthesis module is seamlessly integrated in the shock control workbook. LMS Test.Lab Mission Synthesis LMS Test.Lab Mission Synthesis helps define test specifications for single axis random and swept sine vibration testing from measured load data. Resulting test specifications are equal in damage and are accelerated for faster run times. Test tailoring methods as described in industry standards such as GAM EG-13, MIL-STD 810F and NATO AECTP 200 are used for this purpose. Multiple acceleration loading environments (defined in either time or frequency domain) are analyzed for fatigue potential by calculating MRS (maximum response spectrum) and FDS (fatigue damage spectrum). LMS Test.Lab Single Axis Waveform Replication LMS Test.Lab Single Axis Waveform Replication gets field data to the shaker in fewer steps and extends current testing techniques from classical sine, tracked sine, random and shock control to long-duration time waveform replication. The easy-to-use, native MS Windows software requires little training and helps operators automate very long duration tests with full security. The workflow-based user interface of LMS Test.Lab assists the user throughout the complete test. 90 LMS Test.Lab Vibration Control

91 LMS Test.Lab Vibration Control Hardware options DAC Shutdown Control Unit The DAC Shutdown Control Unit offers remote shutdown control. It is designed as a hardware backup of the software controlled shutdown. The use of a removable key prevents unauthorized enabling after a shutdown procedure. In addition, the DSCU includes two BNC connectors with normally open and normally closed contacts for connecting external safety devices. The DSCU is connected to the LMS SCADAS III frame via three-pole LEMO connectors and a 10-meter long cable. Expand the LMS SCADAS 302VB to 8 measurement channels The LMS SCADAS 302VB is delivered with 4 channels (SP92-B and PQA). It has one free slot which can be used to expand to an 8-channel system. For higher channel count systems the SC302VB frame can be replaced by the LMS SCADAS 310WV (up to 36 measurement channels) or the LMS SCADAS 316 (up to 60 measurement channels). Remote Control The 20 button remote control unit connects to the host computer through USB and supports the LMS Test.Lab Vibration Control commands for operator control. It provides a convenient way to control levels, sweep direction and progress, shock firing, etc. LMS Test.Lab Vibration Control Analysis options LMS Test.Lab Time Recording during Sine and Tracked Sine Dwell This module enables the recording of continuous time histories parallel to online analysis based on fixed sampled spectra, without jeopardizing the performance of the control loop. The recorded throughput data are directly written to LMS TDF (Time Data Format) on a PC hard disc. LMS Test.Lab Geometry and LMS Test.Lab ODS & Time Animation LMS Test.Lab Geometry is designed to build a geometrical definition of test structures, which can be used to visualize measurement and analysis results in a 3D view. Deformation shapes of the structure can be investigated starting from frequency spectra, or FRF or crosspower information for stationary conditions or starting from time recordings using LMS Test.Lab Operational Deflection Shapes and Time Animation. LMS Test.Lab Vibration Control 91

92 LMS Test.Lab Environmental High-speed, multi-channel vibration control and data reduction systems 92 LMS Test Lab Environmental

93 LMS Test Lab Environmental 93

94 LMS Test.Lab Environmental High-speed, multi-channel vibration control and data reduction systems LMS Test.Lab Environmental provides a powerful, high-speed multi-channel vibration control system, certified for spacecraft testing. The vibration control systems can be expanded to hundreds of control, measurement and limiting channels. Users will find it easy to use for routine random, shock, sine, and combined modes testing and have everything they need for stateof-the-art control and extensive data analysis. Environmental testing for aerospace LMS Test.Lab Environmental delivers a complete solution for qualification and acceptance testing on large and fragile structures such as spacecrafts, satellites, and system prototypes. It is designed for parallel acquisition and online reduction of vibration channels during random or sine closed-loop vibration control testing, in reverberant rooms, or for high frequency transient capture in deployment testing. LMS Test.Lab Environmental consists of two product lines: LMS Test.Lab Environmental Control and LMS Test.Lab Environmental Data Reduction. LMS Test.Lab Environmental Control conducts qualification tests on structures in closed loop, and LMS Test.Lab Environmental Data Reduction is dedicated to design validation by complementing the vibration control system with additional measurement channels, decoupled from the closed-loop control system. Both product lines optimize and increase qualification and acceptance test productivity. The same LMS hardware and software environment can also be used to conduct modal survey tests (MST) in order to correlate and update FE models. Safety is the primary objective LMS Test.Lab Environmental protects the integrity of the tested structure throughout the entire procedure. Real-time control is maintained as the channel count increases. Many safety features are built into the hardware and software to ensure a reliable control loop: from comprehensive pre-test checks, response limiting and notching on any number of channels, to a controlled shutdown if limits are exceeded. Productivity and convenience As the solution is designed for maximum productivity, users can arbitrarily map physical inputs to define control, measurement and monitoring channels; recall calibration values from a database; monitor what they want as the test proceeds and batch plot results with a single click. After each test, real-time animation on a geometry, based on measured data, provides a quick test execution check. Full test object protection The entire measurement chain is continuously monitored during testing for open or short circuits. Overload checks are carried out in several places of the signal paths, including up-front, full bandwidth checks on anti-alias filters. Dedicated hardware circuits guarantee smooth shutdown of output signals, even in case of power failure. During closed-loop control RMS and line-by-line abort checking, the system performs single or multi-point control, drive limitation, sigma clipping, as well as continuous open channel and overload checks. Fast loop times ensure a reliable control loop. Safe, fast and accurate control LMS Test.Lab Environmental supports random, swept sine, tracked sine dwell, shock, waveform replay and combined test The LMS Test.Lab Environmental software is designed to work with the LMS SCADAS III controller hardware system that incorporates 24-bit ADC and DAC technology. This tight integration guarantees maximum safety. Test expensive, unique objects in full safety and confi dence Increase productivity using the convenient and easy workfl ow Test according to a large variety of scenarios, including MIL-STD 810 Keep control over measurements and independently perform parallel measurements in the control loop Validate prototypes in support of design and development 94 LMS Test Lab Environmental

95 modes for single-input control. It integrates all common industry standards for vibration and shock testing. Highly flexible, the system supports non-standard test specifications and offers an accurate reproduction of target reference spectra on a shaker. LMS Test.Lab Triax MIMO Random Control provides multiple input random control on decoupled shaker setups. Predefined workflow for optimal productivity Smart test routines and the intuitive user interface of LMS Test.Lab Environmental deliver optimal productivity throughout the testing cycle. Operators follow a workflow defined by the supervisor, which includes overall guidelines, predefined transducer sets, online processing and reporting, as well as a set reference profile and control strategy. Users are in control at all times; they can measure as many parallel channels as needed to monitor the structure at all sensitive points. Setup procedures use a spreadsheet-like interface to facilitate the entry of repetitive values. High performance closed loop control The most distinctive feature of the new system is its speed real-time control is maintained for up to a 100 channels at a control bandwidth of up to 20kHz. All LMS SCADAS III signal conditioning modules are supported, so control is possible from accelerometers. Channel mapping gives users the flexibility to use front-ends more efficiently and choose which channels to use for control and measurement. Online data reduction For those cases in which testing requires even more channels, the vibration control system can be extended with an online reduction system using the same measurement algorithms as the vibrationonly system, but on an acquisition-only system. The overall measurement capacity is extended even further. Flexible analysis and effective communication LMS Test.Lab Environmental offers analysis tools for the most demanding test campaigns. With intuitive data navigation, a user attribute-based search functionality, and comprehensive analysis functions, users can easily visualize and interpret test data. The solution automatically generates reports with a single mouse click. Full compatibility with Microsoft Office and embedded support of OLE/ActiveX technologies turns static reports into dynamic information files. Readers can adapt axis scaling, add cursors and change legends to create their own customized view. LMS Test.Lab Environmental helps testing teams effectively visualize, analyze, report, and share their work with others. LMS Test Lab Environmental 95

96 LMS Test Lab MIL-STD Testing LMS Test.Lab MIL-STD Testing provides a complete solution for military standards (MIL-STD, GAM-EG.13) qualifi cation testing on structures, using a shaker installation in a closed loop fashion. The solution supports swept sine, random, shock, SRS, combined modes and time replay-based qualifi cation. In every qualifi cation test phase and control mode, the system offers a wealth of safety precautions to protect the test article and test area. Test result documentation is key. A fully automatic logging mechanism makes reporting easy and complete. Automatic setup and test data archiving, transducer annotation on stored spectra, visually appealing formatting of run event log fi les and digital picture support are some examples. All information is available in a very intuitive browser tree so that a fi rst draft can be drawn up by anyone. The LMS Test.Lab Random, Sine, Shock and Single Axis Waveform Replication Control applications support safe, accurate and productive component qualifi cation testing. All applications have been designed with long duration, multiple-operator shift testing in mind. Safe qualification testing for the toughest requirements: MIL-STD The modularly organized solution helps users mix and match sweeping and fi xed sine tones and narrowband in all possible ways so they can set up the most demanding combined modes tests imaginable. For SRS testing, LMS Test.Lab Shock Response Synthesis supports damped sine or wavelet use to create a target time history that complies with the target SRS. A fully automated process provides a default waveform. If the waveform violates shaker limits, individual parameters can be modifi ed in a fully interactive optimization process. A multi-level undo/re-do buffer helps users evaluate different parameter changes, while viewing the resulting waveform, refreshed with every alteration. Each updated waveform is checked against shaker performance limits. This means that tests with higher SRS levels can be run on the existing installation. For precise replication of operational loads, LMS Test.Lab Single Axis Waveform Replication provides measured signal replay directly on the shaker. It extends current testing techniques from classical sine, tracked sine, random and shock control to longduration time waveform replication. Well-organized sheet for test progress monitoring, combining general test status information views with online graphics. To support the test tailoring approach as described in LMS Test.Lab MIL-STD, LMS Test.Lab Mission Synthesis defi nes test specifi cations for single axis random and swept sine vibration testing from measured load data. Resulting test specifi cations are equal in damage and are accelerated because of faster run times. Multiple acceleration loading environments are analyzed for fatigue potential by calculating MRS (maximum response spectrum) and FDS (fatigue damage spectrum). Features Swept sine control Random control Shock control (classical pulse, measured pulse and shock response analysis) Single axis waveform replication Shock response synthesis Combined modes Mission synthesis (optional) Benefits Adapted for military standard testing Complete and flexible combined modes implementation World-class SRS implementation on your shaker installation Full flexibility in sine on random setup, fixed and sweeping sine tones with individual burst schedule. Accurate reproduction of measured transient events on a shaker. 96 LMS Test Lab Environmental

97 LMS Test Lab Space Application Testing LMS Test.Lab Space Application Testing is a complete system for closed-loop vibration control for random, sine and shock test modes. The system provides safe, accurate and fast reproduction of the target qualifi cation reference profi les. Any channel that is not used for control can be used as an auxiliary measurement channel or responselimiting channel for test item protection. The channels support ICP transducers or any voltage signal. Features Swept sine control with sine notching Random control with random response limiting Shock control (classical pulse, measured pulse and shock response analysis) The channel setup defi nition sheet is designed to support high channel counts and features ODBC and MS Excel interoperability (for instance for transducer information), copy-and-paste functions for all related tables, and a built-in status check. This results in a fast yet safe channel setup defi nition phase. Extensive pre-test verifi cation is provided by the self-check module, which offers a built-in digital scope function, and performs all pre-test diagnostics. During the test, control algorithms provide accurate control and an extensive set of specimen protection measures. Online monitoring is easy, with control loop status parameters, bar graphs of the channel levels and a 1/2/4/8/16 display layout to browse through all channels. Custom monitoring display layouts can be confi gured and saved to the setup fi les for specifi c test monitoring requirements. After the test, plots are obtained with just one click, including fully automatic batch plotting with peak cursor annotation. The built-in logging mechanism makes reporting easy and complete. Benefits Maximum safety during large test campaigns: channel-count independent performance and extensive support of setup definition phase Maximum confidence in the test data thanks to extensive and fully automatic test results and event logging Maximum efficiency with easy, automatic data management Spacecraft undergoing vibration testing. Sine notching: from simple single point notching to multi-point specimen protection. SelfCheck ensures absolute test safety, validating the end-to-end chain during low excitation pre-test. Fully annotated plots with automatic peak cursors: the plotting speed is 3 pages per second. LMS Test Lab Environmental 97

98 LMS Test Lab MIMO Triax Random Control LMS Test.Lab MIMO Triax Random Control is a user-friendly solution for the complete closed-loop multi-shaker control process. The system implements a reliable, fast, and accurate control algorithm. LMS Test.Lab MIMO Triax Random Control is capable of running up to 3 DACs and an unlimited number of measurement channels simultaneously for MIMO closedloop random control. It includes all necessary features to defi ne and control a random excitation that matches a predefi ned PSD profi le on different measurements points using multiple shakers. Using phase control, cross-coupling compensation and adaptive control, based on the Smallwood algorithm, LMS Test.Lab MIMO Triax Random Control is capable of controlling decoupled XYZ MIMO shaker table setups. The control package guides you through a sequence of well-defi ned tasks. Each task is embedded in a dedicated application worksheet: from test documentation, through channel and control parameters setup, MIMO-SelfCheck to the actual control loop. After the test, the Batch Printing worksheet helps you report in a fully automatic, yet user-defi nable way. An extra worksheet provides visualization and easy navigation through the complete database. Each worksheet exceeds today s standards in usability, minimizes operator errors and guarantees high quality data. It provides those facilities you need for productively qualifying test subjects on a multi-shaker installation while gaining engineering insight in its dynamics. It helps online acquisition and visualization of both proof-of-qualifi cation and valuable engineering data. Electronic reporting is integrated into the solution: the displays into which you dragged and dropped data can be embedded in a report. Displays can be saved as Active Pictures and edited and modifi ed directly in the reporting application. The data is seamlessly compatible with all LMS post-test analysis packages, which are optionally available to expand your application with extra sheets. Data export in multiple formats is possible. Features MIMO random control setup MIMO random control loop (real-time adaptive control loop for decoupled XYZ MIMO shaker table setups) MIMO SelfCheck with extensive safety features: system identification and verification, drive limitations and safety checks on overall RMS level of individual channels MIMO measurements on all channels, online interactions during test sequence Benefits Safe, real-time closed-loop control and monitoring Fast, easy and trouble-free setup definition Fast data interpretation and analysis with online viewing of PSD, crosspower (with phase) and coherences The software is a user-friendly solution for the complete closed-loop multi-shaker control process. Real-time adaptive control loop for decoupled XYZ MIMO shaker table setups. MIMO SelfCheck safety features: drive limitations and checks on individual channel RMS levels. MIMO SelfCheck with safety features: system identification and verification. 98 LMS Test Lab Environmental

99 LMS Test Lab Data Reduction Premium LMS Test.Lab Data Reduction Premium delivers a complete solution for qualifi cation and acceptance testing on large and fragile structures such as spacecrafts and satellites. It is designed for parallel acquisition and online reduction of vibration and microphone channels during random or sine closed-loop vibration control testing, in reverberant rooms, or for high frequency transient capture in the context of deployment testing. The system is optimized for online reduction of high-channel count tests, with an automatic level and frequency synchronization with the control system. All relevant functions are calculated online and in parallel. All modes also support a back-up tape recorder function, streaming all raw time data directly to the host disk in parallel to the online calculations (standard in transient capture, optional in random and sine modes). Features Online random and acoustic reduction Online sine reduction Transient capture Parallel time recording in all measurement modes Online spectrum measurements in all modes Productive batch printing with automatic peak cursors Data available for post-test analysis immediately after test Integrated high-channel count online reduction capability This solution provides batch plotting with automatic peak cursors of all test data immediately after the test, including a various post-test analysis capabilities. The system is optionally expandable to hundreds of channels. Benefits High performance independent from channel count Extensive support features during the setup definition phase Full and automatic test logging Increased efficiency with easy and automatic data management Efficient high channel count test monitoring using networking technology. Streaming all raw time data directly to the host disk in parallel to the online calculations. Online random and acoustic reduction. Online sine reduction. LMS Test Lab Environmental 99

100 LMS Test.Lab Environmental Control options LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting help users effectively protect test items against over-testing. While the average control signal level matches its reference spectrum, the test object response at particular points may greatly differ, due to resonances during the testing phase. The vibration level at any channel (control or measurement) is limited by an auxiliary reference profile for maximum protection of the test item. Combined modes The LMS Test.Lab Sine on Random (SoR) module offers the possibility to define a background noise level combined with up to ten fixed and sweeping sine tones. The LMS Test.Lab Random on Random (RoR) option offers the possibility to define a background noise level combined with an unlimited number of fixed and sweeping narrow-band signals. Both options in combination with LMS Test.Lab Random Control provide complex profile definition, typically called Sine on Random on Random (SoRoR). LMS Test.Lab Shock Response Synthesis LMS Test.Lab Shock Response Synthesis synthesizes a time waveform that corresponds to a user-defined shock response using a series of superimposed wavelets, a series of superimposed damped sine or a chirp sine. The synthesis module is seamlessly integrated into the shock control application. LMS Test.Lab Mission Synthesis LMS Test.Lab Mission Synthesis helps define test specifications for single axis random and swept sine vibration testing from measured load data. Resulting test specifications are equal in damage and are accelerated for faster run times. Test tailoring methods as described in industry standards such as GAM EG-13, MIL-STD 810F and NATO AECTP 200 are used for this purpose. Multiple acceleration loading environments (defined in either time or frequency domain) are analyzed for fatigue potential by calculating MRS (maximum response spectrum) and FDS (fatigue damage spectrum). LMS Test.Lab MIMO Triax Random Control 3x3 configuration LMS Test.Lab MIMO Triax Random Control is capable of running up to 3 DACs and an unlimited number of measurement channels simultaneously for MIMO closed-loop random control. It includes all necessary features to define and control a random excitation that matches a predefined PSD profile on different measurements points using multiple shakers. Phase control, cross-coupling compensation and adaptive control are based on the Smallwood algorithm for decoupled XYZ MIMO shaker table setups. 100 LMS Test.Lab Environmental

101 LMS Test.Lab Test Sequencing LMS Test.Lab Test Sequencing defines and executes a series of closed-loop vibration control tests. For a smooth and unattended batch execution, the application supports mixing all test modes (swept sine, random and shock), do-loops, pause commands and a variety of SelfCheck options. In addition, it is possible to automatically run the MS Windows program as part of the schedule. This can be used to control other equipment in the lab, synchronize vibration testing with functional or climatic testing, or keep the operator up-to-date on the progress of the test sequence by . LMS Test.Lab Tracked Sine Dwell and LMS Test.Lab Time Recording during Sine and Tracked Sine Dwell Control The LMS Test.Lab Tracked Sine Dwell module excites the structure at a fixed frequency, or at a resonance frequency with frequency tracking. Abort criteria in both control and response levels and frequency range abort in case of tracking dwell are foreseen. Arbitrary sequences of dwell frequencies can be easily defined using the resonance identification tool. LMS Test.Lab Time Recording during Sine and Tracked Sine Dwell Control acquires fixed sampled gapless time data in parallel with a sine or tracked sine dwell control test. The user can select the sample rate for this parallel recording by specifying the desired amount of over-sampling with respect to the maximum sweep frequency. The recorded time data can be further processed using all postprocessing products that support this format. LMS Test.Lab Single Axis Waveform Replication LMS Test.Lab Single Axis Waveform Replication gets field data to the shaker in fewer steps and extends current testing techniques from classical sine, tracked sine, random and shock control to long-duration time waveform replication. The easy-to-use, native MS Windows software requires little training and helps operators automate very long duration tests with full security. The workflow-based user interface of LMS Test.Lab assists the user throughout the complete test. LMS Test.Lab Off-line Sine Reduction LMS Test.Lab Off-line Sine Reduction analyzes the response of a structure at different points to a controlled sine excitation. Throughput data are streamed to disc during the online sine reduction application and can be re-analyzed off-line. A COLA (consistant output level adaptor) channel is required to accurately determine sine excitation frequency. LMS Test.Lab Environmental Analysis options Dedicated noise and vibration analysis add-ins are easily activated and become an integral part of LMS Test.Lab Environmental extending the system for MST (modal survey tests) applications. 3D visualization of measurement results for structural analysis (operational deflection shapes, time animation) or access to any other LMS Test.Lab analysis module is only one click away. This eliminates tedious data exports to more advanced analysis applications, such as LMS Test.Lab Geometry and LMS Test.Lab Operational Deflection Shape and Time Animation, LMS Test.Lab Modal Analysis and LMS Test.Lab Operational Modal Analysis, LMS Test.Lab Run Data Averaging and Comparison Organizer. LMS Test.Lab Environmental 101

102 Seamless integration with the LMS SCADAS data acquisition hardware Known for swift performances and superior quality, every LMS SCADAS system delivers optimal measurement quality and precision practically anywhere -- in the lab and in the field. The seamless integration of the LMS Test.Lab software with the LMS SCADAS system accelerates measurement setup, delivering maximal performance while guaranteeing optimal data quality. Thousands of users around the world rely daily on their LMS SCADAS system to obtain mission-critical data for their testing process. 102 LMS SCADAS

103 LMS SCADAS III: Superior performance for lab-based data acquisition Designed for noise, vibration and durability data acquisition engineering Whether you want to capture rpm, acceleration, speed, force, displacement, strain, temperature, sound, torsion, pressure, CAN, or GPS data - singularly or combined - the LMS SCADAS family offers a flexible, off-the-shelf solution. The LMS SCADAS III range offers complete, high quality and cost-effective solutions for high-speed data acquisition and signal conditioning in laboratory conditions. The LMS SCADAS III is optimally tuned to meet the specific needs of noise, vibration and acoustic engineering. Its modular frame allows you to configure a base system and gradually expand it from 4 channels upto a thousand. One system for lab, mobile or autonomous data acquisition and recording The LMS SCADAS front-end family offers system configurations for laboratory, mobile and autonomous data acquisition. Most importantly, it standardizes laboratory and mobile testing on the same hardware system. Tight integration with LMS Test.Lab provides just one integrated platform for all testing tasks. Maximum modularity from 4 to more than 1000 channels Highly modular, a LMS SCADAS data acquisition solution can be expanded from an inexpensive unit with only four channels to a highchannel-density portable solution ranging from 40 to 72 channels with internal battery, up to a distributed high-end system with over a thousand channels. Truly versatile, you can configure each LMS SCADAS system to your exact testing requirements. Optimal scalability total measurement quality LMS SCADAS Mobile: Power and flexibility for mobile and lab testing LMS SCADAS Mobile front-ends pack the quality and acquisition power of the renowned LMS SCADAS system into a compact and rugged design, offering versatile data-acquisition and signalconditioning capabilities. Designed for high measurement and testing productivity, LMS SCADAS Mobile represents one of the most powerful systems in its class. Scalable, the LMS SCADAS system let users apply a high number of measurement channels for extensive testing campaigns, using a daisychained master/slave configuration or dividing the channels over multiple separate testing systems. This distributed approach means that you can minimize costly transducer cabling - and obtain much higher quality measurements. Superior hardware quality maximum investment protection The LMS SCADAS system achieves its high-level reliability through rigorous design standards, efficient quality control, calibration and a strong service organization. Our quality standards are the outcome of more than a 30-year accumulation of practical knowledge in signal conditioning and processing. LMS SCADAS Recorder: Go-anywhere reliability The LMS SCADAS Recorder can be used as an autonomous recorder, as a smart recorder with a wireless PDA connection or as a front-end system for in-field and laboratory applications. The LMS SCADAS Recorder is particularly suited for challenging test applications, where using a PC-based data acquisition unit would be unpractical or impossible. A dedicated version of the SCADAS Recorder is available for durability data acquisition. LMS SCADAS 103

104 LMS SCADAS III Superior performance for lab-based data acquisition The LMS SCADAS III range offers complete, high quality and cost-effective solutions for high-speed data acquisition and signal conditioning in laboratory conditions. The LMS SCADAS III front-end is tightly integrated with the LMS Test.Lab software and optimally tuned to meet the specifi c needs of noise, vibration and acoustic engineering. It offers a fl exible choice of hardware frames and modules and outstanding performance. A modular set of frames and modules The modular LMS SCADAS III frame allows you to confi gure a base system and gradually expand it from 4 channels into a higher channel count unit. The LMS SCADAS 310 is a compact all-in-one lab system that can accommodate up to 120 channels. The top-of-the-line LMS SCADAS 316 can be confi gured up to 192 channels in a single frame. The LMS SCADAS 302VB offers a dedicated confi guration for vibration control applications. The LMS SCADAS III accepts up to 14 different module types, including any combination of input/output cards, specialty inputs for thermal, acoustic head, tacho and torsional applications and a variety of signal conditioning modules. The perfect fit for high-channel lab testing Using the LMS SCADAS 310 or 316, it is easy to connect additional slave frames in a master/slave confi guration using optical fi ber cables. Ideal for noise and vibration laboratories, this modular solution lets operators easily confi gure a multi-frame system for 200 or more channels. Additionally, it is relatively simple to take the set-up to more than 1000 channels. Individual master frames can be confi gured into master/slave confi gurations and easily operated as one unit through a simple master station. LMS SCADAS III offers channel-count independent real-time processing and excellent throughput performance. This makes LMS SCADAS III the ideal solution for high-channel count modal testing, aircraft ground vibration testing or turbine testing applications. Full measurement power in the lab The outputs from the various signal-conditioning modules are routed to the SP92 A/D and DSP cards in a very fl exible and software controlled manner. Digitization incorporates state-of-the-art delta-sigma techniques that combine an ultra-low noise fl oor with fully linear 24-bit system performance at up to 204.8kHz sampling per channel. The combination of a high throughput capacity host interface with 24-bit fi xed point DSPs on each four-channel or twelve-channel module enables a maximum distribution of processing power for true real- time operations on a large number of channels. Processing functions include calibration, digital fi ltering and decimation, order tracking and harmonic extraction, as well as real-time 1/3rd or 1/12th octave fi ltering. 104 LMS SCADAS

105 LMS SCADAS III at a glance LMS SCADAS 316 & 317S: top-of-the-line lab systems Accommodates 4 to 192 channels Expandable to 2000 measurement channels Prepared for 19 rack mounting Easily interchangeable signal conditioning modules Industry standard 1Gbit Ethernet host interface Maximum sustained throughput performance of 8MSamples/sec Built-in calibration source for easy system and module calibration LMS SCADAS 310: the compact all-in-one lab system Compact-frame for lab and field use Industry standard 1Gbit Ethernet host interface Accommodates 4 to 120 measurement channels Master/slave configuration Easily interchangeable signal-conditioning modules Built-in calibration source for easy system and module calibration LMS SCADAS 302VB: the cost-effective bundle for vibration control Cost-effective ready-to-go low-channel count VibCo bundle Dual source module and a four-channel V/ICP input module (standard) Expandable to an eight-channel configuration Industry standard 1Gbit Ethernet host interface Built-in calibration source for easy system and module calibration LMS SCADAS 316 LMS SCADAS 317S LMS SCADAS 310 LMS SCADAS 302VB mainframe slave frame mainframe mainframe Number of slots Max. number of channels per frame Max. total channel count (master/slave combined) 64 (192 with V12 modules) 1920 (5760 with V12 modules) 68 (204 with V12 modules) n.a. 40 (120 with V12 modules) 1840 (5520 with V12 modules) Dimensions (W x H x D) 448 x 183 x 461 mm 448 x 183 x 461 mm 336 x 183 x 461 mm 336 x 183 x 461 mm Weight 20 kg (fully equipped) 20 kg (fully equipped) 13 kg (fully equipped) 8 kg (fully equipped) AC power input 88 to 264VAC 88 to 264VAC 88 to 264VAC 88 to 264VAC Max. power consumption 220W 220W 160W 55W Host interface Ethernet n.a. Ethernet Ethernet Master/Slave interface Optical Optical Optical n.a. 8 n.a. LMS SCADAS 105

106 LMS SCADAS Mobile Power and flexibility for mobile and lab testing The LMS SCADAS Mobile front-ends pack the quality and acquisition power of the renowned LMS SCADAS system into a compact and rugged design, offering versatile data-acquisition and signal-conditioning capabilities. Designed for high measurement and testing productivity, LMS SCADAS Mobile represents one of the most powerful systems in its class. LMS SCADAS Mobile supports both LMS Test.Lab for test-based noise and vibration engineering and the LMS Test.Xpress sound vibration analyzer and data recording solution. Scalable system configurations The LMS SCADAS Mobile SCM05 and SCM09 systems are compact, modular front-ends that accommodate 4 to 40 or 72 channels, and even higher channel counts in a master/slave set-up. Their robust design, compact size, low weight and high autonomy make it the ideal solution for mobile testing applications. Or do you prefer an ultra-portable front-end with fewer channels? The LMS SCADAS Mobile SCM01 front-end hosts 4 or 8 channels and offers a minimum footprint and maximum portability. Each LMS SCADAS Mobile system is equipped with 4 or 8 channel input modules, which support of voltage or ICP sensors, microphones, charge transducers, digital heads and strain gauges. In addition, its builtin GPS receiver is capable of providing instant and accurate input data related to absolute time, speed and position information and its embedded CAN interface or dedicated CAN input module give you direct access to vehicle bus data. Maximum measurement power The LMS SCADAS Mobile front-end packs the versatile data acquisition and signal conditioning capabilities of the renowned LMS SCADAS hardware platform into a compact and robust package. Designed for high measurement and testing productivity, LMS SCADAS Mobile represents one of the most powerful analyzer confi gurations in its class: providing up to a khz sampling rate per channel, 24-bit resolution, 150 db spurious-free dynamic range, and a throughput rate that exceeds 8 Msamples/s. A portable and solid package LMS SCADAS Mobile front-ends fl exibly adapt to any kind of mobile or laboratory set-up. The systems are not just easy to carry, they also offer fl exible cable connections. All cables plug into the front panel, which greatly facilitates installation in locations that are small or diffi cult to access. LMS SCADAS Mobile operates on AC/DC power or on a high-autonomy internal battery. LMS SCADAS Mobile s robust design and reliable hardware is compliant with the MIL-STD-810F standard, and is capable of operating under extreme temperatures. In addition, its innovative cooling system made fan cooling obsolete, providing absolute silence for acoustic measurements. Designed for high measurement and testing productivity, LMS SCADAS Mobile represents one of the most powerful analyzer configurations in its class 106 LMS SCADAS

107 LMS SCADAS Mobile at a glance 4 to 72 channels Master-slave configurations for distributed systems and channel expansion Up to khz sampling rate per channel 24-bit DSP technology 150 db spurious-free dynamic range 8 Msamples/s throughput rate using high-speed Ethernet connection DC Automotive compliant (9-36V) Qualified for rough and high temperature operating conditions LMS SCADAS Mobile SCM01 mainframe: practical and ultra portable unit SCM01 Accommodates 4 or 8 channels Compact, lightweight frame (203 x 58 x 260 mm/2.5kg) Nominal 2.5 hour battery autonomy On-board dual tacho and generator Industry-standard Ethernet host interface On-board GPS receiver (optional) and CAN (optional) MIL-STD 810F qualified for shock and vibration LMS SCADAS Mobile SCM05 and SCM09 mainframes: optimal channel density in a small package SCM05 Accommodates 4 to 40 channels (SCM05) Accommodates 4 to 72 channels (SCM09) Laptop-size robust frame (345 x 92 x 300mm (SCM05) 345x118 x300mm (SCM09)) Nominal one-hour battery autonomy On-board dual tacho and generator Industry-standard Ethernet host interface On-board GPS receiver (optional) and CAN (optional) MIL-STD 810F qualified for shock and vibration SCM09 LMS SCADAS Mobile SCM06S and SCM10S slave frames Expand mobile measurement to hundreds of input channels Accommodates 4 to 48 channels (SCM06S) Accommodates 4 to 80 channels (SCM10S) True master/slave configuration beyond clock synchronization: fully synchronized data is saved in one measurement file Easy mechanical locking of frames to 1 unit Distributed acquisition through 50m optical cabling LMS SCADAS 107

108 LMS SCADAS Recorder: Go anywhere reliability PC-less recording and intelligent mobile data acquisition system Built on LMS SCADAS Mobile technology, the LMS SCADAS Recorder can be used as an autonomous recorder, as a smart recorder with a wireless PDA connection or as a front-end system for in-fi eld and laboratory applications. The system is compatible with major sensor types and is seamlessly integrated with the LMS Test.Lab, LMS Test.Xpress and LMS TecWare software for noise, vibration and durability analysis. The integration of data acquisition and analysis considerably improves data consistency and allows users to reliably compare data sets. This extends the LMS platform to the broadest possible range of data acquisition and analysis tasks, including autonomous data recording. A Bluetooth connection with a PDA wireless remote control provides instant data validation during the measurement process. This state-of-the-art remote control allows you to visualize and monitor real-time data recording (health monitoring of the recorder measurement) and change settings in the fi eld if required. By eliminating blind recording, the LMS SCADAS Recorder not only saves you time, it makes sure that the data you acquire is exactly what you need to get the job done. The embedded UTP interface also allows the operation of the LMS SCADAS Recorder as a PC front-end system for in-fi eld or laboratory applications. it can be confi gured as a regular front-end streaming the data directly to PC through the embedded UTP interface. The data can be visualized, processed and saved on hard disc in real-time. As an all-rounder, the LMS SCADAS Recorder is seamlessly integrated with the LMS Test.Lab, LMS Test.Xpress and LMS TecWare software for noise, vibration and durability analysis. 108 LMS SCADAS

109 Versatile 3-in-1 functionality Compatible with major sensor types, this innovative recorder features three-in-one functionality. For quick on-the-go data acquisition, it is a practical stand-alone data recorder that operates without a PC connection thanks to the embedded data acquisition engine and its handy CompactFlash data storage card. Integrate a Microsoft Windows Mobile PDA and it can act as an enhanced smart data recorder for on-the-spot data monitoring and measurement validation. Ever the all-rounder, it is also a perfect data acquisition front-end for lab-based and in-fi eld measurements. SCR01 Autonomous data recording The LMS SCADAS Recorder operates 100% autonomously. The LMS SCADAS Recorder is particularly suited for challenging test applications, where using a PC-based data acquisition unit would be unpractical or impossible. The unit simply saves the acquired data on the CompactFlash card along with the required conversion format for further analysis on-site or back at the offi ce. Smart recording Using the Bluetooth antenna and a Microsoft Windows Mobile PDA, LMS SCADAS Recorder users can control and monitor the entire measurement process via the PDA s easy-to-use graphical user interface. Measurement control includes starting and stopping the acquisition as well as selecting the appropriate measurement set-up or even changing measurement settings. During the measurement, signals can be displayed in bar graphs. It even indicates errors, such as overloads or faulty cables. After the measurement, a quick overview of relevant statistics (min, max, rms, mean) as well as the time series instantly validates measured data. SCR05 Flexible data acquisition front-end The LMS SCADAS Recorder can also be used as a PC front-end system for laboratory and in-fi eld testing. This indoor-outdoor fl exibility is the perfect way to reduce overall hardware cost and eliminate the hassle and inconvenience of switching systems. The LMS SCADAS Recorder is seamlessly integrated with the LMS software for noise, vibration and durability testing and analysis, delivering optimal data quality and consistency. SCR09 LMS SCADAS Recorder at a glance: Incrementing on the LMS SCADAS Mobile On-the-spot validation prevents errors and annoying reruns Autonomous recording on CompactFlash card Wireless PDA remote control with Bluetooth communication High-speed Ethernet connection for direct streaming to PC Reduce overall hardware cost and eliminate inconvenience Easy-to-use recorder software for acquisition, measurement set-up, instant data validation and data export On-board GPS receiver and CAN (standard) LMS SCADAS 109

110 LMS Engineering Services Solving critical engineering challenges LMS Engineering Services counts on its global team of over 100 multilingual engineers to help customers optimize product designs and address tough engineering challenges. The LMS Engineering Services team has more than 30 years of experience solving the noise, vibration, fatigue and dynamic challenges that manufacturers across various industries meet head-on. Our testing and CAE experts are ready to address your most critical engineering issues and make the difference between successful product launches and costly repairs or even failures. Our approach to functional performance engineering represents a strategic competitive advantage. More than 30 years of experience working with customers Engineering experts LMS Engineering Services helps customers examine and defi ne solutions for development-related issues, ranging from concept design to full vehicle integration. LMS Engineering Services offers a broad portfolio of development and troubleshooting solutions, covering different performance attributes such as NVH, durability, ride and handling, energy effi ciency, performance and safety. Frontloading attribute engineering to the concept phase LMS Engineering Services pioneers dedicated processes to reduce development time and balance multiple performance attributes in the concept phase. Very early design decisions have a signifi cant impact on the intrinsic structural and dynamic properties of the system. In multiple projects, LMS Engineering Services has deployed a simulation methodology that applies optimization loops to the design of subsystems already in the concept phase. People, technology, dedication LMS Engineering Services is driven by multilingual people who are open to work with customers and always strive for the best results. Technology is considered as one of the key enablers for fi nding and implementing smart solutions that fi t customers needs. Central to our organization are commitment and drive to help customers succeed. Global attribute engineering teams Noise & vibration (NVH), strength, reliability and durability, kinematics and dynamics are critical characteristics of products in a huge variety of markets. LMS is open to collaborate with companies who are eager to enhance their products and has specialized teams at its customers disposal. LMS engineers are accustomed to working with a worldwide customer base and can seamlessly integrate into customers engineering teams. Openly sharing technologies and engineering methods Through dedicated technology deployment programs, LMS helps customers implement innovative processes and advance their capability to carefully balance functional product requirements. 110 LMS Services

111 LMS Engineering Services In a broad range of industries and applications: Troubleshooting and design refi nement projects: fi nding the root cause of engineering problems and solving them quickly and effi ciently Technology transfer projects: implementing breakthrough strategies for functional performance engineering Full-vehicle and subsystem co-development projects: taking full or part of the responsibility for your product development from concept to fi nal validation Automotive Truck & bus Off-highway (construction and agriculture) Motorcycles Recreational vehicles Industrial machinery Energy: wind energy, big diesel engines White goods Consumer & business electronics Power tools and outdoor equipment Transmissions Aeronautics & space LMS Engineering Services supports product development in key performance areas: Acoustics Durability Kinematics & dynamics Ride and handling Active and passive safety Noise, vibration & harshness LMS Engineering Centers LMS Engineering Centers in Belgium, France, Germany, Italy, US, China and Japan State-of-the art design, physical prototype testing and simulation infrastructure including in-house structural test labs, semi-anechoic chambers and chassis-dyno rooms Access to vehicle, axle and component durability test rigs as well as proving grounds LMS Services 111

112 LMS Engineering Services Technology leadership in automotive engineering Translating brand definitions into engineering targets Automotive companies need to translate brand defi nitions into functional performance criteria which requires the right tools and processes to successfully defi ne the targets. LMS Engineering Services knows how to take the art or subjectivity out of the scientifi c car development process - and doing it in such a way that it correctly refl ects certain brand values customers expect to fi nd. Integrating the voice of the customer into real performance data requires a tried-andtrue process and the right tools - expertise and tools that LMS Engineering Services readily provides. Engineering vehicle brand values while meeting eco-driven requirements While incorporating brand values into newly developed vehicles, another challenge for automotive and off-road OEMs is to ensure that designs are energy effi cient and low on emission. From an engineering point of view, some of the brand defi nitions may seemingly contradict the increasingly green trend demanded by the market. LMS engineers, however, are experienced at obtaining the right type of information for correct target setting and balancing multi-attributes early in the virtual model stage. LMS combination of tools and expertise helps customers improve emission and energy effi ciency while integrating the subjective side of the brand into the overall driving experience. Top notch solutions One example that illustrates LMS technology leadership is the solution enabling body target setting while taking into account body stiffness effects on vehicle dynamics. The fl exibility of a vehicle body infl uences a driver s subjective assessment of the dynamic performance of a vehicle, an important brand aspect. A unique LMS methodology results in clear visualizations Dedicated d 2D plotting for noise and vibration analysis. 112 LMS Services

113 Automotive vehicle and subsystem development projects Full vehicle development and integration Building on its pragmatic development experience and know-how, LMS Engineering Services helps development teams deliver new vehicles on time and within budget. Vehicle concept engineering Detailed design and engineering Prototype refinement and validation Body structures engineering and interior systems development Modern vehicle body structures must comply with stiffness and durability requirements, yet be lightweight, efficient to produce, and offer adequate packaging space. LMS Engineering Services has extensive experience meeting these stringent requirements. Benchmarking and target setting: NVH Observer benchmarking database Program specific target cascading of vehicle components Body structures engineering: Architecture definition and concept development Detailed design and engineering Weight reduction Interior systems engineering: Benchmarking and target setting Material characterization Trimmed body modeling Sound development and refinement of body deformation during handling maneuvers and decomposition of this deformation in terms of mode shapes. This allows setting body stiffness targets which take into account the effect of the body on vehicle dynamics. From troubleshooting to design right first time LMS experience ranges from troubleshooting projects which are approached in a solution-oriented way, moving logically from diagnosis to development of improved designs, to development projects in which LMS engineers are involved from the concept stage onwards. LMS aim is to invest in the concept stage where many decisions can be reconsidered and processed to obtain the best end result in the most optimal and effi cient way. While helping customers overcome engineering bottlenecks, LMS engineers simultaneously transfer knowledge to customers, helping them improve vehicle and subsystem development processes. Engine, transmission and driveline development LMS offers in-depth knowledge to optimize complex dynamic engine performance while balancing power, economy, mass, size and NVH performance. Engine and engine accessories Concept phase engineering Detailed design and development Friction reduction Fuel economy CO reduction 2 Powertrain integration Confirm acceptable assembly performance Optimize powertrain packaging in vehicle Develop and tune at vehicle level Intake and exhaust Transmission and driveline Design transmission case structure Development and refinement Complete driveline integration Chassis and suspension engineering To deliver the desired vehicle performance, LMS offers an integrated approach to chassis and suspension engineering one where vehicle dynamics, durability and NVH are handled in parallel from concept to vehicle refinement. Benchmarking and target setting Balance vehicle dynamics with comfort and NVH Prototype refinement and validation LMS Services 113

114 LMS Customer Services LMS Customer Services is part of the global LMS organization, in which local customer services teams are ready to support customers software and hardware products. Ranging from annual hardware maintenance and software support contracts to training and technical account management, LMS offers a complete portfolio of professional services delivered by highly experienced engineers. Local customer services teams guarantee reliable services and adhere to strict quality and confidentiality guidelines. LMS Customer Services goal is to provide customers worry-free support services so they can attend to their core business. Software support policy LMS primary goal is to maximize the productivity and effectiveness of the LMS software products in our customers working environment. Subscribing to the LMS software offers a number of advantages: software updates, response line service and access to the LMS customer support website. The LMS support policy provides customers with regular updates that keep their software up-to-date with the latest technology innovations and ensure compatibility with new developments in hardware and operating systems. Every new release delivers new functionalities and features, further enhancing the software s performance. Users can contact the LMS response line for a wide range of questions on the optimal use of the LMS software solutions. Response line engineers assists users by phone or . They diagnose the reported problem and provide the best solution in the shortest possible timeframe. Users can report bugs to the LMS support team that will manage the fi xing process as well as the escalation in case of urgency. All incoming requests are logged and their progress can be monitored online on the LMS support website. Customers can give suggestions for new software updates, which the support team will submit for implementation in upcoming releases. Furthermore, on the LMS customer support website, customers can also browse through a database of technical information, fi nd FAQs on products and applications and read through software documentation and tutorials. Hardware maintenance contracts LMS Customer Services offers hardware maintenance support to keep customers test systems up and running throughout test campaigns, while making sure that systems continue to perform within the original specifi cations. LMS annual hardware calibration service includes verifi cation and justifi cation of all modules, fi rmware updates to the latest productions status and cleaning of the systems. LMS also delivers a full report and an ISO 9000 compliance certifi cate. 114 LMS Services

115 With a hardware maintenance contract, hardware defects are handled in a simple and easy way. When a problem occurs, the contract guarantees that users are able continue their measurement campaign. All customers need to do is contact the local LMS service center and LMS will provide replacement modules while defective material is being repaired. Replacement modules will be shipped by express carrier with all costs covered by LMS. Training classes LMS organizes extensive training and seminar programs for users of different levels: from end-users who want to learn how to use LMS products to engineers who aim to gain in-depth expertise on specifi c applications. Standard or customized LMS training classes take place at the LMS training centers or optionally onsite. Product training classes set out to teach users how to use LMS products, while technology training classes introduce customers to the technology behind our products. Through the LMS master classes, users acquire process and methodology expertise within a well-defi ned topic while working with LMS industry specialists in a real-life environment. Technical account management With an LMS technical account manager onsite, customers can rest assured that their LMS products will perform at the highest effi ciency and productivity possible. LMS can support or take full responsibility for the LMS system management and maintenance. Troubleshooting can be done on the spot and systems and software are kept up-todate with the latest technology and software releases. LMS technical account managers offer regular onsite support and help with the initial installation of the LMS products. They deploy software updates and maintain the installed base of LMS software. They also give hands-on training on software features and functionalities and facilitate on-the-job learning by assisting users with tips and tricks during their work. If problems occur, the LMS technical account managers quickly diagnose and resolve operational issues. Thanks to support of the extensive LMS network, they ensure a fast implementation of technical and commercial solutions. LMS Services 115