The acoustic modal analysis of cavity is the important matter on vehicle NVH performance study. Identifying system mode is of importance to avoid acoustic resonance and reduce interior noise.
车室声学模态分析是汽车NVH特性研究的重要内容，识别系统模态对避免声学共振、降低车内噪声有重要意义。
Aimed at the current situation of research on the vehicle interior noise, this thesis conducts a conclusive analysis on the category of the source of vehicle noise and the noise controlling method.
本文针对国内外汽车车内噪声的研究现状，对汽车噪声的分类以及噪声控制方法进行总结。
This paper develops the way of optimizing vehicle interior noise while the finite element method is employed.
初步探索了利用有限元方法进行汽车室内噪声优化的基本方法。
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