汽车乘座室结构与声学耦合特性的研究

本文介绍了有限元法和模态分析技术在ＴＪ１１０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－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。

An Analysis of the Coupled Structural-Acoustic Characteristics of Vehicle Passenger Compartments

This paper makes an attempt at applying the finite element method and modal test technique to the measurement and analysis on vehicle body vibration and its interior noise. By using the theory of coupled structural- acoustic system, a series of researches have been carried out and some conclusions have been drawn which could be very useful for the future work on the structural and acoustic modification of the vehicle for reducing passenger compartment noise level especially at low frequencies.