摘要
介绍了有限元法和模态分析技术在某轻型汽车车身结构振动和乘座室空腔内部噪声测试分析上的应用,同时应用声一固耦合理论对车身结构与车内噪声耦合进行了研究,得出了相应的结论,为降低由结构振动所引起的车内低频噪声提供了结构修改和声学修改的依据。
This paper makes an attempt at application of finite element analysis and modal analysis technique to the measurement and analysis on vehicle body vibration and its interior noise . Based on the theory of coupled structural-aoustic system,a series of researches have been carried out and some valueable conclusion have been drawn which could be very useful for the future work on the structural and acoustic modification of a vehicle for reducing passenger compartment noise level, especially for the noise at low frequencies.
出处
《噪声与振动控制》
CSCD
北大核心
2007年第2期59-61,共3页
Noise and Vibration Control
关键词
声学
乘座室
噪声
声固耦合
有限元
acoustics
passenger compartment
noise
structural-acoustic couple
finite element
