• 学报（中文） •

### 电子机柜瞬时冲击的动力学行为

1. 中国核动力研究设计院 核反应堆系统设计技术重点实验室， 成都 610213
• 发布日期:2020-04-08
• 通讯作者: 王东伟(1988-)，男，福建省三明市人，博士，工程师，现主要从事机械系统动力学研究． 电话（Tel．）：028-85900606；E-mail: dongwei1013@sina.cn.

### Transient Impact Dynamics of Electronic Cabinet

WANG Dongwei,LIU Mingxing,WU Xiao,YANG Rui,DAI Jun’an

1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China
• Published:2020-04-08

Abstract: A finite element model of a shipboard electric cabinet was established, and the vibration signals in different areas under the impact state were simulated by using the transient dynamic analysis method in Abaqus. The effect of the thickness of box bracket and stand columns on the impact response of cabinet was analyzed as well. The results show that the column, box, bracket and cover of the cabinet are sensitive areas of cabinet, and tend to generate high amplitude vibration. Since different areas of cabinet floor exhibit different responses to impact behavior, the vibration signals transmit to different parts of cabinet are different. As the height increases, the normal displacement and vibration intensity of box decrease gradually. The asymmetry of front and rear of cabinet system is the main reason for difference of vibration intensity between the different areas of cabinet top and front and rear columns. In addition, the thicknesses of bracket and column also have strong influence on the impact response of cabinet. The results can provide the theoretical basis for the reasonable design of impact resistance of cabinet structure.