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.
Acoustic Modal Analysis for Vehicle Cabin
Sae Technical Papers
1995 SAE Brasil ; 1995
1995-10-01
Conference paper
English
Acoustic Modal Analysis for Vehicle Cabin
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