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Abstract: The interior low frequency noise of passenger car has
direct influence on its comfort. An attempt at applying the finite
element method and modal test technique to the measurement and analysis
on the vehicle body vibration and its interior noise is made, and the
analysis conclusion is consistent with test result in low frequencies. By
using the theory of coupling structural—acoustic system, a series
ofresearches are carried out and some conclusion are drawn which could
be very useful for the modification of the structural and acoustic for
the vehicle reducing passenger compartment noise level especially at low
frequencies.
Key words: Structure Vibration Noise Coupling
CLC No: TH132.6
国家自然科学基金资助项目(50075088). Received 20011021, received in revised form
20020228
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