电子机柜分机冲击振动实验分析

The Analysis about Vibration and Shock of a Plug-in Chassis in Electronic Cabinet

本文针对某车载电子设备机箱在振动、冲击环境试验中存在的问题，分别利用有限元分析方法和实验方法对其进行模态分析，得出了模态参数。通过对模态参数的分析，指出了设计和试验存在的问题，提出了改进措施，可供同行参考。

In this paper, aiming to interpret some phenomena occurred when a plug-in chassis of a vehicle -mounted electronic equipment was under the environmental test of vibration and shock - the modal parameters of the chassis are obtained through modal analysis with finite element analysis method and experlment method. The modal parameters are studlecl to find the shortages in the design and test, and sorne lmproving rneasures are given for reference.