【摘要】 利用非线性动力显式有限元方法 ,建立了一个详细的小客车整车有限元模型 ,进行了小客车正面碰撞刚性墙的仿真。仿真结果表明这个小客车初始设计的耐撞性不足 ,某些零件的能量吸收特性和变形模式不合理。基于仿真结果 ,对小客车的前部进行了重新设计以改进其耐撞性。对改进后的小客车的有限元分析结果表明 ,小客车的碰撞性能有了很大改善更多还原

【Abstract】 A detailed full vehicle finite element model was established for the simulation of frontal impact with a rigid wall of the original design of a minibus.The simulation results show that the original design has some problems with regard to crashworthiness.Some parts had inefficient energy absorbing characteristics and improper deformation mode.Based on the simulation result,the foreside of the seven seat bus was redesigned to gain better energy absorbing characteristic.After modeling and impact simulation of the redesigned minibus,the results showed considerable improvement in performance.更多还原