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FEA Design of a Vibration Barrier to Reduce Structure Borne Noise
Technical Paper
2007-01-2164
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the low frequency range, mechanical vibrations propagate into the car body by structure borne transmission. In order to limit this transmission, an original system called “Vibration Barrier” has been developed. It reduces the vibrations propagating into the hollow body network (the transmission path) using a cavity part and the high damping foam technology.
This paper describes the general concept and the FEA design process of a Vibration Barrier part. An example is given for a full car body. The best compromise of the tested designs leads to a significant reduction of the structure borne noise using a lightweight part.
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Authors
Citation
Merlette, N. and Wojtowicki, J., "FEA Design of a Vibration Barrier to Reduce Structure Borne Noise," SAE Technical Paper 2007-01-2164, 2007, https://doi.org/10.4271/2007-01-2164.Also In
References
- Wojtowicki J-L. Merlette N. Germès S. “Design of a Dissipating Barrier part to improve the acoustic comfort” SIA proceedings, 4 th Symposium on Automobile Comfort Le Mans, France 2006
- Merlette N. Germès S. “Using the high damping foam technology to reduce the vibrations of car suspension systems” CNES meeting on Damping Toulouse, France 2006
- Plouin A-S. Balmès E. “A test validated model of plates with constrained viscoelastic materials” International Modal Analysis Conference 194 200 1999
- Nashif A.D. Jones D.I.G. Henderson J.P. “Vibration Damping” John Wiley and Sons 1985
- Lee S.S. Kim M.C. Williamson D.R. “Implementation of a fluid-structure interaction formulation using MSC/Nastran” MSC Aerospace Users' Conference proceedings 1997
- Géradin M. Rixen D. “Théorie des Vibrations, Applications à la Dynamique des Structures” Editions Masson 1996