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Acoustic Modal Analysis for Vehicle Cabin
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Sector:
Event:
1995 SAE Brasil
Language:
English
Abstract
The coincident of the excitation frequency, generated by the vehicle noise and vibration sources, with the acoustic resonance frequencies of the internal vehicle cavity, gives a full excitation of the acoustic modes and consequently a high noise pressure levels. The objective of this paper is to present experimental results and a numerical model by the finite element method for the determination of the resonance frequencies and acoustic modes of irregular shape of the vehicle cavity.
Citation
Nakanishi, E. and Gerges, S., "Acoustic Modal Analysis for Vehicle Cabin," SAE Technical Paper 952246, 1995, https://doi.org/10.4271/952246.Also In
References
- Gerges Samir N.Y. 1992
- ANSYS 5.0 Swanson Analysis System Inc.
- SYSNOISE 4.2 Numerical Integration Technologies N.V.
- Richards T.L. Jha S.K. A simplified finite element method for the studying characteristics inside a car cavity J. Sound and Vibration 1979 63 1 61 72
- Petyt M. Lea J. Koopmann G.H. A finite element method for the determining the acoustic modos of irregular shaped cavities J. Sound and Vibration 1976 45 4 495 502