某军用车载显控设备支架的优化设计分析

Analysis of Optimized Design of the Bracket for A Military-Vehicle Display-Control Unit

通过对某军用车载显控设备安装支架的现有结构进行模态分析和车载环境的随机振动(Power Spectral Density,PSD)分析,结合服役要求,采用以增加原材料厚度与局部进行形状优化(压槽及折边)相结合的措施对现有结构进行了优化设计。对比支架优化前后的结果可知,优化后的支架可有效地提高支架的强度,同时也降低了结构的加速度响应值,对支架的工程设计有一定的指导作用。

The paper carried out modal analysis of the existing structure of the installation bracket for a military-vehicle display-control unit and also PSD analysis of vehicle-mounted environment, and then optimized the design of the structure according to the service requirements through the combined measures of increasing its raw material′s thickness and partial shape optimization(groove rolling and edge folding). The results of comparison reveal that the optimized bracket can effectively enhance the strength and lower the acceleration response, which serves as the guidance for the engineering design of the bracket.