爆炸冲击下某车辆底部梁结构设计优化

Structural Optimization of a Vehicle Underbody Beam Configuration Under Explosion Shock Load

建立某军用装甲车辆有限元模型并进行爆炸仿真分析,探寻对比不同梁结构对车辆防护性能的影响。以底甲板最大位移和应力为目标函数,以梁的厚度、杨氏模量和屈服强度为设计变量,对梁结构进行优化设计,为车辆底部防护设计提供合理方案。

The finite element model of a military armored vehicle was established and the explosion simulation analysis was carried out to find out the influence of several different beam structures on the vehicle protection performance.The maximum displacement and stress of the bottom deck were taken as the objective function.Taking the thickness of the beam,Young’s modulus and yield strength as design variables,the optimal design of the beam structure was optimized,which provides a reasonable solution for the subsequent vehicle bottom protection design.