The ability to predict the interior acoustic sound field in a vehicle is important in order to avoid or to minimize unwanted noise conditions, such as boom or high pressure levels at cavity resonance frequencies. In this work an acoustic modal analysis is carried out for a minivan. The testing procedure is discussed and some results are shown. With the seats removed and for low frequencies the interior of the vehicle is similar to a rectangular box for which an analytical solution exists. At higher frequencies and with the seat, the interior acoustic field displays complex mode shapes.
CAE Interior Cavity Model Validation using Acoustic Modal Analysis
Sae Technical Papers
SAE 2007 Noise and Vibration Conference and Exhibition ; 2007
2007-05-15
Conference paper
English
CAE interior cavity model validation using acoustic modal analysis
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