This paper presents a substructure method of static sensitivity analysis of light car white body to simulate the dynamic sensitivity analysis of bus.

提出了一种针对轻型客车白车身结构的静态灵敏度分析的子结构法，以模拟车身的动态灵敏度应力分析。

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In this paper we separately use White noise and chirp signal as signal source, and apply simulate software MATLAB to research the time delay between the transmitted signal and the received signal.

本文分别以白噪声及扫频信号为信号源，采用计算机仿真软件MATLAB，对声波在声发射端和接收端之间的飞渡时间的互相关估计进行了计算机仿真研究。

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