Stage 3 Noise and vibration analysis NOISE

Size: px
Start display at page:

Download "Stage 3 Noise and vibration analysis NOISE"

Transcription

1 Stage 3 Noise and vibration analysis NOISE

2 Noise and vibration Frequency range Transformer Hum Telephone Bandwidth TV-hum [Hz] Vibration Vibration Noise

3 Major noise sources in vessels - Propulsion propeller - Diesel engines and exhaust system - Bow thrusters

4 Semi submersible drilling rig

5 Measured Propeller Noise Source Strength 170 From transient cavitation Pressure in db re µpa/hz^0.5/m From tip vortices f (Hz) Measured Measured A-weighted

6 Vibration/Noise in aft ship, Cruise Vessels Peak value: 1.3 mm/s RMS Overall level: 3.5 mm/s RMS

7 Propeller Modification DNV GL proposed and predicted effect of propeller modification

8 Tunnel thrusters Often located very close to accommodation Prolonged use in vessels with DP

9 Offshore Service Vessels / Bow-thruster noise

10 Resiliently Mounted Tunnel Thrusters Double tunnel type

11 Resiliently Mounted Tunnel Thrusters Brunvoll Rolls Royce

12 Noise level from thruster with increasing diameter for same power setting 12

13 Main Engines Often located close to accommodation Always on Difficult to attenuate firing frequency 13

14 Situation onboard an OSV if without noise consideration Rigidly mounted main engine Simple floating floor construction Conventional tunnel thrusters Do not comply with the noise criteria in transit condition Even larger discrepancies in manoeuvring/dp condition 14

15 Noise reducing measures resiliently mounted main engines - Inclined isolator arrangement - Dynamic advantages - Stable arrangement

16 Dynamic behaviour of seating configurations BAD!! BETTER! GOOD!

17 Resilient mounting of piping

18 Resilient mounting of piping GOOD! WRONG!

19 Floating Accommodation Resilient suspension Mineral wool Steel bulkhead Ceiling panel Accommodation panel Top floor Mineral wool Steel deck

20 Noise reducing measures resiliently mounted main engines 70 Cabins on Main Deck Noise levels in db(a) Noise Level, db(a) re. 2 x 10-5 Pa k 2k 4k 8k Frequency (Hz) Ship 1 - Firmly mounted main engine Ship 2 - Resiliently mounted main engine

21 Sound transmission paths

22 Structureborne Noise Transmission

23 Noise control against NORSOK noise requirement

24 Noise reducing enclosure

25 Noise reducing curtains

26 Noise reducing curtains for diesel generators

27 Enclosure of Mud Pumps

28 Noise Screening of draw works

29 Exhaust Often located very close to accommodation Always on Difficult to attenuate firing frequency

30 Noise Exhaust system

31 Noise - Exhaust Gas System

32 Elastic mounting of exhaust system

33 Noise Exhaust system

34 Distance and Insulation Distance and Insulation

35 External noise Requirements in ports coming more often.

36 External noise Can be done in design stage and for ships in operation

37 Other sources Often located on suboptimal foundation Often located close to accommodation

38 Noise - Sound Insulation of Air Intake

39 Noise Attenuated Hydraulic Installation Hydraulic pipes, pumps, ventilation channels etc. that are rigidly mounted efficiently transmits noise into the structure Pipes should be elastically clamped All clamps and supports should be placed at a stiff location (girder etc.) Pumps/motors should preferably be resiliently mounted

40 Hydraulic noise reduction S Silencer /Pulsation dampers Elastic clamps of piping

41 Typical hydraulic installations

42 Elastic mounting of pump and piping

43 Noise reducing measures summary Resiliently mounted main engines~ 7-9 db(a) Optimized floating floor ~ 8-10 db(a) Double tunnel construction ~ 8-10 d(a) Dynamic Positioning Condition Average Noise level, db(a) Main Shelter Forecastle Deck Conventinal Built to Comfort Class

44 Floating Accommodation Resilient suspension Mineral wool Steel bulkhead Ceiling panel Accommodation panel Top floor Mineral wool Steel deck

45 Noise Floating floors f o = 1 k 1 = 2π m 2π E mh k Stiffness of mineral wool m Mass h Thickness of mineral wool m k

46 Noise Floating floors db Damping f o = 1 k 1 = 2π m 2π E mh Soft floating floor Stiff floating floor f O2 fo 1 Reduction in db Hz

47 Noise Acoustic optimized floating floor Accommodation panel - Deck coating -Steel plates, 3-5 mm 25 mm - Glass/Mineral wool, mm density 140 kg/m 3 - Constraining layer, Latex-cement, mm (~1500 kg/m3) -Visco-elastic damping layer thickness 1-2 mm -Steel deck

48 Constrained visco-elastic damping layer

49 Viscoelastic Damping Treatment Visco-elastic damping layer, 1-2 mm Steel Tiles, mm Steel Deck Visco-elastic damping layer construction

50 DP3 Offshore construction vessel with COMF-V(1)

51 Necessary improvement after delivery Initial Crit. Initial noise levels

52 Firm connections to steel structure

53 Noise levels before and after assistance After Before Crit.

54 Firm contact between floating floor and steel structure

55 Structural contact to accommodation walls

56 Noise - Resilient mounting of ceiling Deckhead Rubber Ceiling Ceiling

57 Elastic mounting of ceiling Good elastic suspension, or freestanding ceiling will reduce impact sound level by 5 db or more. Slide 57

58 Helicopter noise

59 NORSOK - Helicopter noise criteria 55 db(a) in cabin

60 Public Address and General Alarm analysis(paga) Calculate public address loudness

61 PAGA analysis Find optimal number of speakers May be possible to reduce number of speakers

62 Stage 4 Noise and vibration measurement NOISE

63 Measurement in the Restaurant Sequence Running Engines Average Gen. Load 1 DG5and6 80% 2 DG1and6 78% 3 DG4and6 78% 4 DG1and4 78% 5 DG1and5 79% 6 DG1and2 76%

64 Main Recommendations Consider rearranging the anchorage point with confirmation from manufacturer Consider changing the vertical resilient mounts of the exhaust boilers which seem to be aged and worn out Consider strengthening hull structure by inserting two pillars

65 Measurement Result in the lounge Pink noise and music

66 Recommendation in the order of cost vs. effect 1. Educate personnel and making them aware of the overall reduction of noise levels produced in the lounge will be reflected in the cabins above. 2. Reduce low frequency components of live music 3. Redesign speaker cabinets 4. Change resilient mounts for main speakers to softer ones Remove

67 DNV GL SILENT-E Notation and Underwater Noise Measurement

68 Criteria for SILENT-E Two operation conditions are required: transit condition and quiet cruise condition Two runs need to be measured for each condition

69 Measured operating conditions Measurement sites were chosen based on ship itinerary and site geometry. Two sets of hydrophone were deployed at two sites to have the measurement performed in one day

70 Measurement Procedure Running the measurement for quiet cruise condition Preparing the hydrophone and cable Got on-site DNV GL

71 Environmental Risk Induced by Underwater Noise Determined the expected environmental impact and compared this to the existing noise emissions in the area

72 Noise & Vibration Noise and vibration on ships and offshore structures can impair crew performance, cause passenger dissatisfaction, and lead to failure of structures, machinery and equipment. Our Advisory Services offer an extensive portfolio of noise and vibration related services, ensuring enhanced comfort for crew and passengers on board, and that your vessels comply with all international regulations. Services Global Vibration Analysis Local Structural Vibration Analysis Vibration Analysis of Machinery & Equipment Noise Analysis Propeller excitation analysis Hydroacoustic Noise Analysis (underwater) Structural Vibration Measurements Noise Measurements Hydroacoustic Measurements Shock Analysis of Machinery & Equipment Class Notations: Comfort Class Silent Class Vibration Class Value proposition Enhance the environment conditions related to noise and vibration for crew and passengers and minimise risk of human fatigue Minimise your risk of exceeding contractual vibration and noise limits Avoid fatigue damage to structure and machinery Reduce downtime and repair costs

73 Thank you! Yanran Wang Mobile Direct SAFER, SMARTER, GREENER

KEY FACTORS OF A SHIP INTERNAL NOISE PREDICTION PROCEDURE

KEY FACTORS OF A SHIP INTERNAL NOISE PREDICTION PROCEDURE 23 rd International Congress on Sound & Vibration Athens, Greece 10-14 July 2016 ICSV23 KEY FACTORS OF A SHIP INTERNAL NOISE PREDICTION PROCEDURE Simone Curletto and Cesare Tarditi Fincantieri S.p.A. Naval

More information

Treating Complex Shipboard Noise Problems Requires Customized Approach

Treating Complex Shipboard Noise Problems Requires Customized Approach Treating Complex Shipboard Noise Problems Requires Customized Approach E-A-R Thermal Acoustic Systems Aearo Technologies LLC Indianapolis, Indiana Website: www.earglobal.com E-mail: solutions@earglobal.com

More information

Controlling noise on offshore installation during design and commissioning West Elara case

Controlling noise on offshore installation during design and commissioning West Elara case Controlling noise on offshore installation during design and commissioning West Elara case Philippe Loustau engineering manager October 18, 2012 Offshore noise control What are the challenges for offshore

More information

Alara-Lukagro. Krijgt alles stil. Cruise ships

Alara-Lukagro. Krijgt alles stil. Cruise ships Alara-Lukagro. Krijgt alles stil. Cruise ships Alara-Lukagro The specialist in noise control for cruise ships Making noise is easy. However, it is often necessary to make as little noise as is physically

More information

Flooring and Acoustic Damping Sikafloor Marine

Flooring and Acoustic Damping Sikafloor Marine Acoustic Systems Primary Deck Coverings When fitting carpets, vinyl etc. the deck needs to be level. Sika offers a wide range of levelling compounds, each with different benefits so that an ideal compound

More information

Analytical Model of Vibration Transmission Through the 5M10000 Mount

Analytical Model of Vibration Transmission Through the 5M10000 Mount Company Description Cambridge Collaborative, Inc. is a research, development and consulting firm founded in 1970 in Cambridge, Massachusetts. The firm provides engineering services in vibration and acoustics

More information

NOISE AND VIBRATIONS HIGH SPEED, LIGHT CRAFT AND NAVAL SURFACE CRAFT RULES FOR CLASSIFICATION OF DET NORSKE VERITAS

NOISE AND VIBRATIONS HIGH SPEED, LIGHT CRAFT AND NAVAL SURFACE CRAFT RULES FOR CLASSIFICATION OF DET NORSKE VERITAS RULES FOR CLASSIFICATION OF HIGH SPEED, LIGHT CRAFT AND NAVAL SURFACE CRAFT SPECIAL EQUIPMENT AND SYSTEMS ADDITIONAL CLASS PART 6 CHAPTER 12 NOISE AND VIBRATIONS JANUARY 2011 CONTENTS PAGE Sec. 1 Noise

More information

Hull damage experience in CSR tankers

Hull damage experience in CSR tankers MARITIME Hull damage experience in CSR tankers TSCF SBM, Busan October 2016 Ivar Håberg Senior Principle Surveyor, DNV GL SAFER, SMARTER, GREENER Using data to identify improvement opportunities for the

More information

Applied Noise Control. D. W. Herrin, Ph.D., P.E. University of Kentucky Department of Mechanical Engineering

Applied Noise Control. D. W. Herrin, Ph.D., P.E. University of Kentucky Department of Mechanical Engineering D. W. Herrin, Ph.D., P.E. Department of Mechanical Engineering Outline of Topics 1. Introduction 2. Noise Control at Source 3. Noise Control of Transmission Path 4. Protection at Receiver 5. Summary 2

More information

Part 6 Additional class notations Chapter 6 Living and working conditions

Part 6 Additional class notations Chapter 6 Living and working conditions RULES FOR CLASSIFICATION High speed and light craft Edition December 2015 Part 6 Additional class notations Chapter 6 The content of this service document is the subject of intellectual property rights

More information

Temporary Living Quarters Ekofisk Field

Temporary Living Quarters Ekofisk Field Temporary Living Quarters Ekofisk Field Peter Klaveness Multiconsult Acoustics, Nedre Skøyen vei 2, NO-0213 Oslo, Norway, peter.klaveness@multiconsult.no 1 Introduction Figure 1, Haven during outfitting

More information

COLD Heat Fire

COLD Heat Fire www.stenca.com COLD Heat Fire INsulation Accommodation Advising INDEX Stenca Trading - A good partner... 3 See what we can... 4 See where we can... 5 Stenca Pipe... 6 Stenca Tank Plates... 7 Stenca HT

More information

Cabins Noise Control on the Large Oil-tanker

Cabins Noise Control on the Large Oil-tanker Cabins Noise Control on the Large Oil-tanker Wu-Wenwei 1,2 Li-Zecheng 1,2 (1. China Ship Scientific Research Center, National Key Laboratory on Ship Vibration & Noise, Wuxi 214082, China; 2. Jiangsu Key

More information

Comparative Impact Performances of Lightweight Gym Floors

Comparative Impact Performances of Lightweight Gym Floors Comparative Impact Performances of Lightweight Gym Floors Lloyd Cosstick, Evan Hong and Tim Murray Embelton Noise and Vibration, Melbourne VIC 3058, Australia ABSTRACT Gyms are a common source of complaints

More information

Noise and Vibrations

Noise and Vibrations RULES FOR CLASSIFICATION OF High Speed, Light Craft and Naval Surface Craft PART 6 CHAPTER 12 SPECIAL EQUIPMENT AND SYSTEMS ADDITIONAL CLASS Noise and Vibrations JANUARY 2011 This chapter has been amended

More information

NUMERICAL MODELLING IN ACOUSTICS, DYNAMICS AND VIBROACOUSTICS M G Smith ISVR Consulting, University of Southampton, University Road, SO17 1BJ, UK

NUMERICAL MODELLING IN ACOUSTICS, DYNAMICS AND VIBROACOUSTICS M G Smith ISVR Consulting, University of Southampton, University Road, SO17 1BJ, UK NUMERICAL MODELLING IN ACOUSTICS, DYNAMICS AND VIBROACOUSTICS M G Smith ISVR Consulting, University of Southampton, University Road, SO17 1BJ, UK 1 INTRODUCTION For many design problems in acoustics and

More information

Part 0 - Classification and Surveys Classification and Surveys I Classification and Surveys I

Part 0 - Classification and Surveys Classification and Surveys I Classification and Surveys I This edition of GL rules & guidelines is the latest and current edition. Previous editions of GL rules & guidelines, as well as all DNV GL rules and supporting documents, are available from https://www.dnvgl.com/rules-standards.

More information

Identification and reduction of vibration and noise of a glass tempering system

Identification and reduction of vibration and noise of a glass tempering system IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Identification and reduction of vibration and noise of a glass tempering system To cite this article: M S Ashhab 2015 IOP Conf.

More information

Vibration control of ship

Vibration control of ship Vibration control of ship Kuk-Su Kim kuksu@dsme.co.kr, Young-Mo Kong ymkong@dsme.co.kr Daewoo Shipbuilding & Marine Engineering Co., LTD Abstract Recently, the ship size and speed are increased but the

More information

... Enclosures & walls. Experts in Noise Control Solutions

... Enclosures & walls. Experts in Noise Control Solutions Enclosures & walls Experts in Noise Control Solutions Alara-Lukagro Enclosures & walls The different enclosures and walls of Alara-Lukagro have been developed with an eye for detail based on a large number

More information

ACOUSTICAL TREATMENT OF EMERGENCY POWER GENERATOR. Dr. M.Abd El Gawad Saif

ACOUSTICAL TREATMENT OF EMERGENCY POWER GENERATOR. Dr. M.Abd El Gawad Saif ICSV14 Cairns Australia 9-12 July, 2007 ACOUSTICAL TREATMENT OF EMERGENCY POWER GENERATOR Dr. M.Abd El Gawad Saif Housing & Building National Research Center, Dokki, Giza, Egypt msaifeldin2002@yahoo.com

More information

SPECIAL SERVICE AND TYPE ADDITIONAL CLASS. Comfort Class JANUARY 2011

SPECIAL SERVICE AND TYPE ADDITIONAL CLASS. Comfort Class JANUARY 2011 RULES FOR CLASSIFICATION OF Ships PART 5 CHAPTER 12 SPECIAL SERVICE AND TYPE ADDITIONAL CLASS Comfort Class JANUARY 2011 This chapter has been amended since the main revision (January 2011), most recently

More information

19 th INTERNATIONAL CONGRESS ON ACOUSTICS MADRID, 2-7 SEPTEMBER 2007 A METHODOLOGY TO MEASURE THE ACOUSTIC PERFORMANCE OF ACCESS FLOORS

19 th INTERNATIONAL CONGRESS ON ACOUSTICS MADRID, 2-7 SEPTEMBER 2007 A METHODOLOGY TO MEASURE THE ACOUSTIC PERFORMANCE OF ACCESS FLOORS 19 th INTERNATIONAL CONGRESS ON ACOUSTICS MADRID, 2-7 SEPTEMBER 2007 A METHODOLOGY TO MEASURE THE ACOUSTIC PERFORMANCE OF ACCESS FLOORS PACS: 43.55.-e Asdrubali, Francesco 1 ; D Alessandro, Francesco 2

More information

Vibratec Akustikprodukter AB Marine & Navy

Vibratec Akustikprodukter AB Marine & Navy Vibratec Akustikprodukter AB Marine & Navy Vibratec Akustikprodukter AB Marine & Navy Vibratec is specialized in anti-vibration, damping, noise and shock protection for different offshore applications

More information

Kinetics Noise Control

Kinetics Noise Control Kinetics Noise Control Acoustical Curtain Systems www.kineticsnoise.com Acoustical Curtain Systems Kinetics Noise Control s acoustical curtain systems are custom engineered to your application for acoustic

More information

DNVGL-OS-A301 Edition April 2016

DNVGL-OS-A301 Edition April 2016 OFFSHORE STANDARDS DNVGL-OS-A301 Edition April 2016 The content of this service document is the subject of intellectual property rights reserved by ("DNV GL"). The user accepts that it is prohibited by

More information

Part 6 Additional class notations Chapter 8 Living and working conditions

Part 6 Additional class notations Chapter 8 Living and working conditions RULES FOR CLASSIFICATION Ships Edition October 2015 Amended January 2016 Part 6 Additional class notations Chapter 8 The content of this service document is the subject of intellectual property rights

More information

COMFORT YACHT (COMF(Y)) AND COMFORT PLUS YACHT (COMF+(Y))

COMFORT YACHT (COMF(Y)) AND COMFORT PLUS YACHT (COMF+(Y)) Guide for the Class Notation Comfort Yacht (COMF(Y)) and Comfort Plus Yacht (COMF+(Y)) GUIDE FOR THE CLASS NOTATION COMFORT YACHT (COMF(Y)) AND COMFORT PLUS YACHT (COMF+(Y)) DECEMBER 2008 (Updated November

More information

Some notes on the sound reduction index of pax cabins panels on cruise ships

Some notes on the sound reduction index of pax cabins panels on cruise ships Some notes on the sound reduction index of pax cabins panels on cruise ships M. Biot a and F. De Lorenzo b a DINMA, University of Trieste, Via Valerio, 10, 34100 Trieste, Italy b Fincantieri SpA, Passeggio

More information

Specialist Study on Noise APPENDIX 4 : EXAMPLES OF GOOD OPERATING PRACTICES IN ORDER TO REDUCE NOISE EMISSIONS

Specialist Study on Noise APPENDIX 4 : EXAMPLES OF GOOD OPERATING PRACTICES IN ORDER TO REDUCE NOISE EMISSIONS APPENDIX 4 : EXAMPLES OF GOOD OPERATING PRACTICES IN ORDER TO REDUCE NOISE EMISSIONS EFFECTIVE ENCAPSULING OF CONSTRUCTION MACHINERY, E.G. MOBILE AIR COMPRESSOR Diesel driven compressors produce high levels

More information

ROSTA Anti-vibration Mountings

ROSTA Anti-vibration Mountings 71 Technology With a relatively hard machine support or mounting, the amplitude of the installed equipment is minimal, but the resulting isolation efficiency is much less than with a more resilient mounting.

More information

LNG Carriers Ship Life Extension. Ed Waryas. Lloyd s Register North America, Inc.

LNG Carriers Ship Life Extension. Ed Waryas. Lloyd s Register North America, Inc. LNG Carriers Ship Life Extension Ed Waryas Lloyd s Register North America, Inc. Longevity Study - Outline Owners Records Classification Records Ship inspection RAM Study Structural Integrity Analysis Owner

More information

O c t o b e r K-FLEX. Acoustic Insulation

O c t o b e r K-FLEX. Acoustic Insulation O c t o b e r 2 0 1 5 Acoustic Insulation Solutions for Acoustic Comfort K-FONIK PRODUCT RANGE offers a wide range of acoustic insulation solutions for many different applications to provide a more comfortable

More information

TRAINING CATALOGUE. Academy Korea SAFER, SMARTER, GREENER

TRAINING CATALOGUE. Academy Korea SAFER, SMARTER, GREENER TRAINING CATALOGUE Academy Korea SAFER, SMARTER, GREENER 0001 Introduction to Shipbuilding 3 DAYS Shipbuilding, Shipping & Operation statistics Organization of maritime regime, Rules & Regulations, Class

More information

ACOUSTIC ENCLOSURES ACOUSTIC ENCLOSURES ACOUSTIC ENCLOSURES

ACOUSTIC ENCLOSURES ACOUSTIC ENCLOSURES ACOUSTIC ENCLOSURES ACOUSTIC ENCLOSURES 4 5 Introduction Noise is often conveniently defined as a sound which is unwanted by the recipient. Unwanted noise is no longer something that has to be endured, it can and must be

More information

MARINE SIKAFLOOR SOLUTIONS SIKA MARINE SIKAFLOOR MARINE SYSTEMS

MARINE SIKAFLOOR SOLUTIONS SIKA MARINE SIKAFLOOR MARINE SYSTEMS MARINE SIKAFLOOR SOLUTIONS Our most current General Sales Conditions shall apply. Please consult the most current local Product Data Sheet prior to any use. 1 SIKAFLEX???????????????????????? Bruksområde:????????

More information

TRAINING CATALOGUE. Academy Korea SAFER, SMARTER, GREENER

TRAINING CATALOGUE. Academy Korea SAFER, SMARTER, GREENER TRAINING CATALOGUE Academy Korea SAFER, SMARTER, GREENER 0001 Introduction to Shipbuilding 3 DAYS Shipbuilding, Shipping & Operation statistics Organization of maritime regime, Rules & Regulations, Class

More information

RIVER PUMP ROOM ISOLATION FROM STATE LIBRARY. David Borgeaud 1 and Michael Plumb 2. Brisbane, QLD 4000, Australia 2 GP Embelton & Co.

RIVER PUMP ROOM ISOLATION FROM STATE LIBRARY. David Borgeaud 1 and Michael Plumb 2. Brisbane, QLD 4000, Australia 2 GP Embelton & Co. ICSV14 Cairns Australia 9-12 July, 2007 RIVER PUMP ROOM ISOLATION FROM STATE LIBRARY David Borgeaud 1 and Michael Plumb 2 1 Environmental Resources Management Australia Pty Ltd Brisbane, QLD 4000, Australia

More information

Adjustable epoxy based vibration damping material for constrained-layer systems

Adjustable epoxy based vibration damping material for constrained-layer systems Adjustable epoxy based vibration damping material for constrained-layer systems Lasse Kinnari Oy Noisetek Ab, Aakkulantie 40, 360 Kangasala, Finland, lasse.kinnari@noisetek.fi Vibration damping of mechanical

More information

CATALOG VIBRATION ISOLATORS CIRCULAR CUSHYFOOT CUP MOUNT SANDWICH MOUNTS BOBBINS & BUFFERS

CATALOG VIBRATION ISOLATORS CIRCULAR CUSHYFOOT CUP MOUNT SANDWICH MOUNTS BOBBINS & BUFFERS CATALOG VIBRATION ISOLATORS CIRCULAR CUSHYFOOT CUP MOUNT SANDWICH MOUNTS BOBBINS & BUFFERS UU SHEAR RUBBER MATS What is Vibration? Basically, it is the effect of imbalance or out of balance in any rotating

More information

Lifting Appliances of Ships and Offshore Installations

Lifting Appliances of Ships and Offshore Installations CCS Rule Change Notice For: Lifting Appliances of Ships and Offshore Installations Version: May, 2016. RCN No.1 Effective date: 19 May, 2016 Beijing CONTENTS Chapter 3 CRANES, LIFTS, RAMPS AND SELF-LOADING

More information

Vibration Analysis of Motor Yacht

Vibration Analysis of Motor Yacht Vibration Analysis of Motor Yacht Pais T* and Boote D University of Genova, Italy *Corresponding author: Tatiana Pais, University of Genova, Italy, Tel: +393495447730; Email: tatianapais@hotmail.it Research

More information

Vibration Isolation of Machine Foundations

Vibration Isolation of Machine Foundations on your wavelength 35 Vibration Isolation of Machine Foundations Active and Passive Isolation Vibration Technology Vibration Isolation of Machine Foundations Unwanted vibrations and shock impact occur

More information

Measurement series to verify the accuracy of Stora Enso Acoustic Prediction tool - SEAP

Measurement series to verify the accuracy of Stora Enso Acoustic Prediction tool - SEAP PROCEEDINGS of the 22 nd International Congress on Acoustics Calculation models for timber structures (Silent Timber Build): Paper ICA2016-165 Measurement series to verify the accuracy of Stora Enso Acoustic

More information

Marine & Offshore Fire Divisions. bulkhead, deck & floor systems

Marine & Offshore Fire Divisions. bulkhead, deck & floor systems Marine & Offshore Fire Divisions bulkhead, deck & floor systems THERMAL CERAMICS THERMAL CERAMICS ABOUT MORGAN ADVANCED MATERIALS Morgan Advanced Materials is a global engineering company offering world-leading

More information

Ore Carriers Part 4, Chapter 11

Ore Carriers Part 4, Chapter 11 Section 1 Section 1 General 2 Materials and protection 3 Longitudinal strength 1.2 Structural configuration and ship arrangement 1.2.1 The requirements contained in the Chapter apply to single deck ships

More information

K-Sim Engine Diesel Electric Dual Fuel Cruise Ferry. Evy Kristine Sæter Product Advisor Engine Room Simulator

K-Sim Engine Diesel Electric Dual Fuel Cruise Ferry. Evy Kristine Sæter Product Advisor Engine Room Simulator K-Sim Engine Diesel Electric Dual Fuel Cruise Ferry Evy Kristine Sæter Product Advisor Engine Room Simulator International Maritime Organization - Legislation 2017 1 January 2017 SOLAS IGF Code International

More information

The insulators are available in the standard colours green (40Sh-A), red (55Sh-A), and beige (70Sh-A).

The insulators are available in the standard colours green (40Sh-A), red (55Sh-A), and beige (70Sh-A). GMT-Insulators Description of parts and functions: The GMT-insulators, because of their electrically insulating property, are used for the bearing of blasts, airconditioning units and fans. The fact that

More information

N O I S E I N S U L A T I O N M A T E R I A L S

N O I S E I N S U L A T I O N M A T E R I A L S Quiet vibration-free performance from today s high-revving diesels N O I S E I N S U L A T I O N M A T E R I A L S The only marine range of materials with guaranteed noise reductions One of a series of

More information

Moduline. Acoustic Enclosure System. Rugged Noise Control Structures Using Acoustically Rated & Field Proven Demountable Components

Moduline. Acoustic Enclosure System. Rugged Noise Control Structures Using Acoustically Rated & Field Proven Demountable Components Moduline Acoustic Enclosure System Rugged Noise Control Structures Using Acoustically Rated & Field Proven Demountable Components Lab certified acoustic ratings Broad range of performance levels 63 Hz

More information

Tackling the Whining Noise of a 4WD Bus A Case Study

Tackling the Whining Noise of a 4WD Bus A Case Study Tackling the Whining Noise of a 4WD Bus A Case Study Dr. Harvey Law (1) and Dr. Marek Kierzkowski (2) (1) Technical Director, Megasorber Pty Ltd, Melbourne, Australia (2) Acoustic Engineer, Megasorber

More information

YOUR PARTNER IN CUSTOMISED OFFSHORE VESSELS

YOUR PARTNER IN CUSTOMISED OFFSHORE VESSELS YOUR PARTNER IN CUSTOMISED OFFSHORE VESSELS OFFSHORE VALUE FOR OUR CLIENTS CIG delivers the total package. From the first consultation concerning the ship s requirements, through the engineering, steel

More information

Implementing an Advanced Hull Integrity Management System to Reduce Technical Operating Costs and TCO

Implementing an Advanced Hull Integrity Management System to Reduce Technical Operating Costs and TCO INNOVATIVE MARITIME SOFTWARE Implementing an Advanced Hull Integrity Management System to Reduce Technical Operating Costs and TCO Kevin Brunn, Head of Clients & Markets, Maritime Software, DNV GL Tanker

More information

matteco CONSTRUCTION sound insulation products

matteco CONSTRUCTION sound insulation products matteco CONSTRUCTION sound insulation products for walls and ceilings for timber and solid structures A small financial investment increases the value of your property. You gain peace and quiet and living

More information

Fire Protection and Applications

Fire Protection and Applications Fire Protection and Applications Technical Insulation Marine ins./fire protection 4-10.6.1 May 2008 Replaces: January 2008 Content PAROC Marine insulations meet all requirements...3 Steel decks and bulkheads...4

More information

LIVING QUARTERS module building principles General Features

LIVING QUARTERS module building principles General Features LIVING QUARTERS module building principles General Features Emtunga builds both customer specified Living Quarters and LQ s according to our own preferred design. The design and fabrication is based on

More information

VIBRATION CONTROL SYSTEMS FOR TRACKBEDS AND BUILDINGS USING COIL STEEL SPRINGS

VIBRATION CONTROL SYSTEMS FOR TRACKBEDS AND BUILDINGS USING COIL STEEL SPRINGS VIBRATION CONTROL SYSTEMS FOR TRACKBEDS AND BUILDINGS USING COIL STEEL SPRINGS Hans-Georg Wagner Department of Building and Trackbed Isolation, GERB Vibration Control Systems, Essen, Germany 1. Abstract

More information

Design recommendations

Design recommendations Water & Wastewater Design recommendations Pump and pipe mechanical installation guidelines Contents Introduction... 3 Vibration... 4 Piping support... 5 foundations... 6 Anchor recommendations... 6 Pump

More information

Acoustic Design Criteria

Acoustic Design Criteria Apartment Acoustics Apartment Buildings Acoustic Design Criteria Building Code of Australia: - Intertenancy walls and floors - Corridor walls and doors - Floor impact isolation - Lift, stair and core walls

More information

Finite Element Modeling Methods - Vibration Analysis for Ships

Finite Element Modeling Methods - Vibration Analysis for Ships Finite Element Modeling Methods - Vibration Analysis for Ships J. H. Spence, Noise Control Engineering, Inc. E. A. Favini, Noise Control Engineering, Inc. C. A. Page, Noise Control Engineering, Inc. Accurate

More information

R/V ZERO-V A ZERO-EMISSION HYDROGEN FUEL CELL RESEARCH VESSEL 29 AUGUST 2018 UNOLS GREEN BOATS AND PORTS CONFERENCE 2018

R/V ZERO-V A ZERO-EMISSION HYDROGEN FUEL CELL RESEARCH VESSEL 29 AUGUST 2018 UNOLS GREEN BOATS AND PORTS CONFERENCE 2018 A ZERO-EMISSION HYDROGEN FUEL CELL RESEARCH VESSEL 29 AUGUST 2018 UNOLS GREEN BOATS AND PORTS CONFERENCE 2018 CALIFORNIA-BASED INTERMEDIATE CLASS & SMALLER SHIPS Research vessels able to carry out California

More information

CAMMACH ACOUSTIC SILENCING BLANKET

CAMMACH ACOUSTIC SILENCING BLANKET CAMMACH ACOUSTIC SILENCING BLANKET Cammach Group Ltd Cammach Business Centre. Greenbank Road East Tullos. Aberdeen AB12 3BN Tel: 0044 (0) 1224 249977 E: info@cammachgroup.com W: www.cammachgroup.com INTRODUCTION

More information

SOUND INSULATION TESTING IN DWELLINGS

SOUND INSULATION TESTING IN DWELLINGS SOUND INSULATION TESTING IN DWELLINGS Chris Dilworth, AWN Consulting This Presentation Discusses the standards by which we judge sound insulation performance. Presents the results of sound insulation tests

More information

Research on vibration and sound radiation characteristics of ship stiffened composite plate structure

Research on vibration and sound radiation characteristics of ship stiffened composite plate structure Research on vibration and sound radiation characteristics of ship stiffened composite plate structure Fu-zhen PANG 1 ; Hong-bao SONG ; Xu-hong MIAO 1 College of Shipbuilding Engineering, Harbin Engineering

More information

WIND TURBINES. Vibration Control of: Wind Turbines APPLICATIONS POWER GENERATION - WIND TURBINES

WIND TURBINES. Vibration Control of: Wind Turbines APPLICATIONS POWER GENERATION - WIND TURBINES APPLICATIONS AP-Power-Wind Turbines-13a Vibration Control of: WIND TURBINES POWER GENERATION - WIND TURBINES Wind Turbines Wind power is popular. The market for wind turbines is expanding rapidly and with

More information

Vibration Isolation and Noise Reduction Shipbuilding Solutions

Vibration Isolation and Noise Reduction Shipbuilding Solutions Vibration Isolation and Noise Reduction Shipbuilding Solutions Fire resistance verified through IMO/SOLAS certification Worldwide availability High-tech Solution with accredited Fire Resistance Properties

More information

MOBILE OFFSHORE UNITS

MOBILE OFFSHORE UNITS RULES FOR BUILDING AND CLASSING MOBILE OFFSHORE UNITS 2018 NOTICE NO. 1 JULY 2018 The following Rule Changes were approved by the ABS Rules Committee on 1 June 2018 and become EFFECTIVE AS OF 1 JULY 2018.

More information

GOOD PRACTICE GUIDELINES FOR CONTROLLING NOISE ON OFFSHORE INSTALLATIONS

GOOD PRACTICE GUIDELINES FOR CONTROLLING NOISE ON OFFSHORE INSTALLATIONS GOOD PRACTICE GUIDELINES FOR CONTROLLING NOISE ON OFFSHORE INSTALLATIONS Graham McPherson (CMFOH) OH2017 Harrogate International Centre 24 27 April 2017 Introduction UK Noise Regulations also apply in

More information

Vibratec Akustikprodukter AB Civil Engineering

Vibratec Akustikprodukter AB Civil Engineering Vibratec Akustikprodukter AB Civil Engineering Vibratec Akustikprodukter AB Civil Engineering Vibratec supplies solutions for Civil Engineering applications such as floating floors, elastically suspended

More information

Vibratec produce and store many products for damping / isolation of vibration, shock and noise over a wide range of applications:

Vibratec produce and store many products for damping / isolation of vibration, shock and noise over a wide range of applications: Company Profile What we do? Vibratec Akustikprodukter is one of Scandinavia s leading suppliers of noise and vibration solutions. Vibratec s ambition is to become the preferred choice for customers who

More information

INDUSTRIAL SILENCERS SOUNDS LIKE SUCCESS

INDUSTRIAL SILENCERS SOUNDS LIKE SUCCESS INDUSTRIAL SILENCERS SOUNDS LIKE SUCCESS VANEC Silencers MADE IN THE USA Our newest manufacturing facility, opened in 2016, is a dedicated manufacturing plant, located in Gainesville, Texas USA - 72,000

More information

Design of a standalone, modular test facility for measuring sound transmitted through a common ceiling plenum

Design of a standalone, modular test facility for measuring sound transmitted through a common ceiling plenum Design of a standalone, modular test facility for measuring sound transmitted through a common ceiling plenum Edward A. BARCLAY 1 ; Robin R. WAREING 2 ; John R. PEARSE 3 1, 2, 3 University of Canterbury,

More information

SKF marine solutions. Improving fleet efficiency and predictability in a sustainable way. The Power of Knowledge Engineering

SKF marine solutions. Improving fleet efficiency and predictability in a sustainable way. The Power of Knowledge Engineering SKF marine solutions Improving fleet efficiency and predictability in a sustainable way www.bergab.ru Берг АБ bergab@ya.ru Тел.(495)-228-06-21,факс (495) 223-3071 Working together to bring benefits throughout

More information

1.2 Class, Rules, Regulations and Conventions

1.2 Class, Rules, Regulations and Conventions 435 Series Liftboat Technical Specifications This unit designed to be a workover and well service under the condition of 90m sea water depth. The deck area of the unit to be about 2300 m2 which carry a

More information

SECTION The specification section is organized by placing information in three standard parts:

SECTION The specification section is organized by placing information in three standard parts: SECTION 14244 LIMITED USE HYDRAULIC ELEVATOR ***** Since 1982 Liftavator, Inc. has provided limited use/limited application (LU/LA) elevators, residential elevators, hydraulic vertical platform wheelchair

More information

Experience of DNVGL with LNG fuelled vessels and the IGF code in our rules

Experience of DNVGL with LNG fuelled vessels and the IGF code in our rules Experience of DNVGL with LNG fuelled vessels and the IGF code in our rules Benjamin Scholz 1 SAFER, SMARTER, GREENER Content Background Experience with LNG as fuel some indications Bunkering of LNG IGF-Code

More information

Sound Insulation with Hilti Firestop products

Sound Insulation with Hilti Firestop products Sound Insulation Sound Insulation with Hilti Firestop products The enclosed pages are taken from the Hilti Sound Insulation Brochure Edition March 2006 Please note the tables in this extract may be out

More information

NOISE IN HIGH RISE BUILDINGS

NOISE IN HIGH RISE BUILDINGS NOISE IN HIGH RISE BUILDINGS Ross H. Palmer CPEng RPEQ Principal Palmer Acoustics (Australia) Pty Ltd ross@palmeracoustics.com Noise in high rise buildings has traditionally not been considered an issue,

More information

Vibratec produce and store many products for damping / isolation of vibration, shock and noise over a wide range of applications:

Vibratec produce and store many products for damping / isolation of vibration, shock and noise over a wide range of applications: Company Profile What we do? Vibratec Akustikprodukter is one of Scandinavia s leading suppliers of noise and vibration solutions. Vibratec s ambition is to become the preferred choice for customers who

More information

Industrial Noise Control Solutions to industrial and environmental noise problems

Industrial Noise Control Solutions to industrial and environmental noise problems Industrial Noise Control Solutions to industrial and environmental noise problems Industrial Noise Control IAC Acoustics is among the world s leading providers of solutions to industrial noise problems.

More information

ADDENDUM #2. Questions Asked and Answers Provided: Question #2: Please provide the expected turnaround time of the one engine being overhauled.

ADDENDUM #2. Questions Asked and Answers Provided: Question #2: Please provide the expected turnaround time of the one engine being overhauled. ADDENDUM #2 KITSAP TRANSIT Invitation for Bids RP1 Engine and Exhaust System Replacement IFB #KT 17-586 November 17, 2017 60 Washington Ave. Ste. 200 Bremerton, WA 98337 Phone: 360.479.6962 Fax: 360.377.7086

More information

TECHNICAL INFORMATION Bulletin

TECHNICAL INFORMATION Bulletin Peerless Pump Company 2005 Dr. M.L. King Jr. Street, P.O. Box 7026, Indianapolis, IN 46207-7026, USA Telephone: (317) 925-9661 Fax: (317) 924-7338 www.peerlesspump.com www.epumpdoctor.com TECHNICAL INFORMATION

More information

LIGHTWEIGHT COMPOSITE SHIP CABINS

LIGHTWEIGHT COMPOSITE SHIP CABINS LIGHTWEIGHT COMPOSITE SHIP CABINS WHERE DID IT ALL START? May 2009 A visit to Carnival s Queen Victoria November 2012 Composites in Ships conference, Southampton: Composites in Ships, Potential in Cruise

More information

SECTION VIBRATION CONTROLS FOR PLUMBING PIPING AND EQUIPMENT

SECTION VIBRATION CONTROLS FOR PLUMBING PIPING AND EQUIPMENT Page 220548-1 SECTION 220548 - PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,

More information

SKF marine solutions. Improving fleet efficiency and predictability in a sustainable way. The Power of Knowledge Engineering

SKF marine solutions. Improving fleet efficiency and predictability in a sustainable way. The Power of Knowledge Engineering SKF marine solutions Improving fleet efficiency and predictability in a sustainable way Working together to bring benefits throughout the ship life cycle In today s global fleet of increasingly specialized

More information

IAC Acoustics Moduline Noise Control Enclosures. Mark Simnick

IAC Acoustics Moduline Noise Control Enclosures. Mark Simnick IAC Acoustics Moduline Noise Control Enclosures by Mark Simnick Mid-South Product Sales Manager IAC Acoustics, A Division of Sound Seal 401 Airport Road North Aurora, IL 60542 Mobile: (630) 235-2566 Office:

More information

SOUNDPROOF SYSTEM FOR WASTEWATER DRAINAGE

SOUNDPROOF SYSTEM FOR WASTEWATER DRAINAGE Determination of the acoustic performance of a wastewater EasyFONO installation system in the laboratory according to EN 14366 have been made by Fraunhofer Institut für Bauphysik: SYSTEM Noise is among

More information

Introduction to Acoustics

Introduction to Acoustics Introduction to Acoustics Absorption Have you walked into a racquetball court and heard the echo as the ball strikes the wall? Or have you been in the country with snow on the ground and noticed how quiet

More information

IAC Acoustics Noise-Foil Sound Absorption Panels for Industrial Applications. Dan O Brien

IAC Acoustics Noise-Foil Sound Absorption Panels for Industrial Applications. Dan O Brien IAC Acoustics Noise-Foil Sound Absorption Panels for Industrial Applications Presented by Dan O Brien Industrial Business Unit Manager IAC Acoustics, A Division of Sound Seal 401 Airport Road North Aurora,

More information

VIBRATION CONTROL FOR A 25 MW STEAM-TURBINE GENERATOR INSTALLATION NEAR ACADEMIC TEACHING AND RESEARCH LABORATORIES

VIBRATION CONTROL FOR A 25 MW STEAM-TURBINE GENERATOR INSTALLATION NEAR ACADEMIC TEACHING AND RESEARCH LABORATORIES Twelfth International Congress on Sound and Vibration VIBRATION CONTROL FOR A 25 MW STEAM-TURBINE GENERATOR INSTALLATION NEAR ACADEMIC TEACHING AND RESEARCH LABORATORIES Jack B. Evans, PE JEAcoustics Engineered

More information

WAVEBAR AND QUADZERO RANGE

WAVEBAR AND QUADZERO RANGE FLEXIBLE ACOUSTIC NOISE BARRIER WAVEBAR AND QUADZERO RANGE BUILDING - INDUSTR IAL - TR AN SPORT - MA RI NE - OIL & GAS SOUNDPROOFING SOLUTIONS FOR ALL INDUSTRIES pyroteknc.com MASS LOADED VINYL FOR ALL

More information

On silent feet. RHEDA RX Unique protection

On silent feet. RHEDA RX Unique protection On silent feet RHEDA RX Unique protection from structure-borne noise RHEDA RX High efficiency mass-spring system Mass rapid transit is one of the most essential enablers of modern individual mobility.

More information

Vibration Isolation of Machine Foundations. Active and Passive Isolation

Vibration Isolation of Machine Foundations. Active and Passive Isolation on your wavelength 33 Vibration Isolation of Machine Foundations Active and Passive Isolation Vibration Isolation of Machine Foundations Unwanted vibrations and shock impact occur in nearly all technical

More information

HIGH PERFORMANCE ACOUSTIC INSULATING MATERIAL FOR A QUIETER ENVIRONMENT

HIGH PERFORMANCE ACOUSTIC INSULATING MATERIAL FOR A QUIETER ENVIRONMENT HIGH PERFORMANCE ACOUSTIC INSULATING MATERIAL FOR A QUIETER ENVIRONMENT Excellent at reducing the transmission of airborne sound Enhances the insertion loss performance of pipe insulation Flexible, easy

More information

COMMON ERRORS DURING CONSTRUCTION OF NEW BUILDINGS AND EFFECT OF WORKMANSHIP

COMMON ERRORS DURING CONSTRUCTION OF NEW BUILDINGS AND EFFECT OF WORKMANSHIP Harmonization of European Sound Insulation Descriptors and Classification Standards Florence, December 14 th 2010 COMMON ERRORS DURING CONSTRUCTION OF NEW BUILDINGS AND EFFECT OF WORKMANSHIP Patrizio Fausti

More information

ACOUSTIC INSULATION. ArmaComfort - the comfort of quiet equipment

ACOUSTIC INSULATION. ArmaComfort - the comfort of quiet equipment ACOUSTIC INSULATION ArmaComfort - the comfort of quiet equipment Every third European is bothered by noise THE SOUND OF SILENCE Noise has become one of the greatest environmental problems of our times.

More information

PORTABLE ACCOMMODATION MODULES

PORTABLE ACCOMMODATION MODULES Guide for Portable Accommodation Modules GUIDE FOR PORTABLE ACCOMMODATION MODULES JANUARY 2013 (Updated June 2018 see next page) American Bureau of Shipping Incorporated by Act of Legislature of the State

More information

84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: F:

84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: F: 84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: +64 9 379 7822 F: +64 9 309 3540 www.marshallday.com DESIGN GUIDE Floors in buildings are often required to achieve certain levels

More information

Table of contents. Tapes 4. Fiberglass Cloth 9. Fastening Systems 11. Polyurethane Foam 17. Rockwool 19

Table of contents. Tapes 4. Fiberglass Cloth 9. Fastening Systems 11. Polyurethane Foam 17. Rockwool 19 Table of contents Tapes 4 ALU Tape. 5 Reinforced ALU Tape. 5 Glass Tape. 6 Self-adhesive Glass Tape. 6 Laso - Tape. 7 Self-adhesive PCV Tape. 7 Rubber Tape - Armaflex. 8 Ceramic Tape. 8 Fiberglass Cloth

More information

GLAUNACH THE SILENCER HANDBOOK INSULATION SUPPLEMENTARY ACOUSTIC SHIELDING OF SILENCERS, PIPES & CO GLAUNACH GMBH ALL RIGHTS RESERVED -

GLAUNACH THE SILENCER HANDBOOK INSULATION SUPPLEMENTARY ACOUSTIC SHIELDING OF SILENCERS, PIPES & CO GLAUNACH GMBH ALL RIGHTS RESERVED - GLAUNACH THE SILENCER HANDBOOK INSULATION SUPPLEMENTARY ACOUSTIC SHIELDING OF SILENCERS, PIPES & CO GLAUNACH GMBH 2010 - ALL RIGHTS RESERVED - Part VIII page 2 of 9 There are two main motivations for adding

More information