Analysis of Vibration and Noise of Car Doors Based on Inverse Sub-structuring Method

Abstract

摘要： 针对国内主机厂某款SUV 以11 km/h～13 km/h 的速度行驶在搓衣板路面时左后车门出现异常振动的现象进行分析。通过前期试验已确定引起车门异常振动的激励来源于搓衣板路面，借助逆子结构分析方法对从轮轴头到左后车门(目标响应点)振动传递路径进行分析。该方法优势在于在整车耦合系统条件下，通过试验测量可得到底盘系统和车身系统耦合界面动态参数与各子结构频响函数，从而求解出各轮轴头到接附点（车身侧为被动端）激励传递率以及各子系统非耦合状态下频响函数，从而实现振动传递路径贡献量分析，最终找出激励传递率较大的接附点。

关键词: 振动与波, 逆子结构分析方法, 频率响应函数, 激励传递率, 传递路径

CLC Number:

U463

黄河. 基于逆子结构分析方法的车门振动噪声分析[J]. 噪声与振动控制, 2022, 42(2): 149-153.

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Analysis of Vibration and Noise of Car Doors Based on Inverse Sub-structuring Method

基于逆子结构分析方法的车门振动噪声分析

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