CIBATUR. Isolation of Vibration and Insulation against Structure-borne. Noise of Machines and Structures with Large Foundations

Transcription

1 CIBATUR Isolation of Vibration and Insulation against Structure-borne Noise of Machines and Structures with Large Foundations planmäßig elastisch lagern

2 Natural Frequency Content Page Product Description 2 Natural Frequency 2 Degree of Damping 3 Loss Factor 3 Field of Application 4 Efficiency of Insulation 4 Dimensions and Weights 5 Insulation Effect 5 Text of Tender Document 5 Dynamic Foundation Modulus 6 Assembly Details 6 Static Deflection 7 References 7 Laying 8 Test Certificates, Verifications 8 Product Description The profiled Cibatur mat consists of a fabric reinforced elastomeric plate (sandwich method) that has underneath truncated cone shape spring elements. The surface of the top layer is not only insensitive to weather but also resistant to abrasion, oil and ozone. Natural rubber of high quality is used for the spring elements which have excellent dynamic properties. Cibatur has attached a vulcanised overlapping strip which covers the longitudinal joints. The mat is resistant to temperatures ranging from -40 C up to +70 C. The water absorption is way below 1 %. Natural Eigenfrequenz frequency f o [Hz] 20,0 19,5 19,0 18,5 18,0 17,5 17,0 16,5 16,0 15,5 15,0 14,5 14,0 13,5 13,0 12,5 12,0 11,5 11,0 10,5 10,0 9,5 9,0 8,5 8,0 0,00 0,05 0,10 0,15 0,20 0,25 0,30 0,35 0,40 0,45 0,50 Compressive Druckspannung stress [N/mm 2 ] Amplitude of speed of vibration 1 mm/s 2 I planmäßig elastisch lagern

3 Average mittlerer degree Dämpfungsgrad of damping ϑ [ ] 0,11 0,10 0,09 0,08 0,07 0,06 0,05 0,04 0,03 0,02 0,01 mittlerer Average Verlustfaktor loss factor η [ ] η [ ] 0,08 0,07 0,06 0,05 0,04 0,03 0,02 0,01 0, Erregerfrequenz Exciting frequency f [Hz] Degree of Damping Loss Factor Angular Loss The damping factor ϑ (frequently given as a percentage and previously referred to as Lehr damping factor D = ϑ) is a measure of the decrease in amplitude of a free decay process. Alternative and equivalent characteristics to describe the damping of a system are: Loss factor η 0,5 ϑ Angular loss ζ (phase angle between force and deformation, to be determined for η = tan ζ ) 0, Amplitude of speed of vibration 1 mm/s Excitation Erregerfrequenz frequency f [Hz] It generally applies: the larger ϑ, the smaller are the maximum increase Ü max and the insulation effect of the excitation frequencies larger than 1,4 times the resonance frequency. Degree of Damping planmäßig elastisch lagern I 3

4 Insulation efficiency Field of Application Compressive stress: 0,05 0,50 N/mm 2 Cibatur is used as an elastic component so as to reduce the forces which act on bearings or foundation. That way the transmission of vibration and structureborne noise will be reduced. Due to the special composition it is possible to achieve very high efficiencies of the protective measures. The natural frequencies remain nearly constant over a large range of compressive stresses. Owing to the cone-like structure, Cibatur acts like a surface drainage system under the foundation slab of the building in the case of non-ponding ground and seepage water. The functionality is guaranteed for the whole services life due to the use of high quality elastomers and synthetic indecomposable fabrics. Insulation Isolierwirkungsgrad efficiency [%] Note: The tests were carried out for speeds of vibration of 1 mm/s and 2 mm/s. However, the results of the tests with speed of vibration of 2 mm/s deviate on average by a maximum of 10 % from the values shown. 0 1,5 2,0 2,5 3,0 3,5 Amplitude of speed of vibration 1 mm/s 4,0 4,5 5,0 5,5 6,0 6,5 7,0 7,5 8,0 8,5 Frequenzverhältnis Frequency ratio f / f o 9,0 9,5 10,0 4 I planmäßig elastisch lagern

5 0 5 Dimensions and Weights Width approx. [mm] 1536 Total thickness approx. [mm] 30 Thickness of top layer approx. [mm] 10 Length max. [mm] 50 Weight approx. [kg/m 2 ] Insulation Dämmwirkung effect [db] 30 mm mm Text of Tender Document Type: Calenberg Cibatur, with truncated cones made of NR, profiled, vulcanised elastomer mat, modular dimensions of cones: 64 mm, total thickness: 30 mm, with double fibre-reinforced protective and abrasion layer made of chloroprene rubber. Quantity:... m 2 Length:... mm Width:... mm Price:... 3/m ,5 2,0 2,5 3,0 3,5 Amplitude of speed of vibration 1 mm/s 4,0 4,5 5,0 5,5 6,0 6,5 7,0 7,5 8,0 8,5 Frequenzverhältnis Frequency ratio f / f o 9,0 9,5 10,0 Supplier: Calenberg Ingenieure GmbH Am Knübel 2 4 D Salzhemmendorf Phone +49 (0) / Fax +49 (0) / Insulation Effect planmäßig elastisch lagern I 5

6 Dynamic Foundation Modulus Assembly Details Calenberg Cibatur is laid loosely on a correctly levelled blinding layer with adequate load bearing capacity. It is important to note that the protection and wear surface faces upwards. To guard against ingress of concrete slurry it is necessary to glue the overlapping strips together or to cover the whole area completely with foil. At the free edge overlapping strips are used to seal the joint. For the vertical vibration isolation we offer a wide range of products according to the requirements. Free deformation of the foundation has to be guaranteed at all times so as to avoid the transmission of structureborne noise. Dynamic Dynamischer foundation Bettungsmodul modulus [N/mm 3 ] 0,35 0,30 0,25 0,20 0,15 0,10 σ = 0,05 N/mm 2 σ = 0,10 N/mm 2 σ = 0,15 N/mm 2 σ = 0,20 N/mm 2 σ = 0,25 N/mm 2 σ = 0,30 N/mm 2 σ = 0,40 N/mm 2 σ = 0,50 N/mm 2 0,05 fabric reinforced top layer PA / PE fabric 0, insulation layer cone-shaped structure Natural Erregerfrequenz frequency f [Hz] 6 I planmäßig elastisch lagern

7 Einfederung Deflection [mm] 14,0 13,5 13,0 12,5 12,0 11,5 10,5 10,0 9,5 9,0 8,5 8,0 7,5 7,0 6,5 6,0 5,5 5,0 4,5 4,0 3,5 3,0 2,5 2,0 1,5 1,0 0,5 0,0 0,00 0,05 0,10 0,15 0,20 0,25 0,30 0,35 0,40 0,45 0,50 References The Charles Hotel, Munich Office building Parexel, Berlin Post office area, Salzburg Opera house, Hangzhou, China 6 cement mills, Nigeria Arkadia shopping centre, Warsaw, Poland Combined heating and power station, Warsaw, Poland Daimler Chrysler, Warsaw, Poland University library, Wroclaw, Poland Belgian brewery, Zabrze, Poland Ball mill, Poland Compressive Druckspannung stress [N/mm 2 ) Static Deflection planmäßig elastisch lagern I 7

8 Laying Test Certificates Verifications Standard building authority approval no. P , Accredited Testing Authority for Materials in Mechanical Engineering and Technical Plastics at the Institute for Material Science, University of Hanover, 2005 "Determining the Static and Dynamic Material Behaviour of Elastic Continuous Support Type Cibatur Research Report 28/08 Technical University Dresden, 2008 Cibatur has been checked/tested by: Technical University of Munich, Technical University of Berlin, RWTH Aachen, Deutsche Bahn AG, Munich, SNFC, Technical Inspection Authority Rheinland, Hoechst AG, Müller-BBM / Munich, imb-dynamik / Inning Test reports are available on request. Figure 1: Cutting of mats Figure 2: Laying of mats PIB /02/ Edition Reprint, photocopy or dublication even in extracts only written permission of Calenberg Ingenieure GmbH The contents of this publication is the result of many years of research and experience gained in application technology. All information is given in good faith; it does not represent a guarantee with respect to characteristics and does not exempt the user from testing the suitability of products and from ascertaining that the industrial property rights of third parties are not violated. No liability whatsoever will be accepted for damage regardless of its nature and its legal basis arising from advice given in this publication. This does not apply in the event that we or our legal representatives or management are found guilty of having acted with intent or gross negligence. No liability is borne for damage due to ordinary negligence. This exclusion of liability applies also to the personal liability of or legal representatives and employed in performing our obligations. Calenberg Ingenieure, planmäßig elastisch lagern GmbH Am Knübel 2-4 D Salzhemmendorf Phone +49 (0) 5153/ Fax +49 (0) 5153/ info@calenberg-ingenieure.de 8 I planmäßig elastisch lagern