An Integrated Approach to Vehicle NVH Optimization

Paper #:
  • 962489

Published:
  • 1996-10-01
Citation:
Wyckaert, K., Gieien, L., van der Linden, P., and Van der Auweraer, H., "An Integrated Approach to Vehicle NVH Optimization," SAE Technical Paper 962489, 1996, https://doi.org/10.4271/962489.
Pages:
11
Abstract:
Vibro-acoustical optimization of vehicles is a complex task, due to the many interactions that exist between subcomponents and car body in a broad acoustical frequency range. The goal of this paper is to present a view on the different experimental methodologies for vibro-acoustical analysis, that approach the vehicle as a source, transfer and receiver system. This approach focuses on the use of transfer path and source identification techniques, both for structure-borne and air-borne contribution analysis, and on the use of modeling techniques as there are vibro-acoustical modal analysis, FRF based substructuring and experimental statistical energy analysis techniques. It is explained what the main focus is of each of the techniques, where they can be used in the vibro-acoustical optimization process and in which frequency ranges they are useful.
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