基于某商用车开发过程的正面碰撞仿真分析与优化设计

Based on a development process of commercial vehicle frontal crash simulation analysis and optimization design

首先对这款商用车的设计初版模型进行了结构耐撞性分析,然后基于B柱加速度波形曲线走势以及驾驶室的变形等情况对整车的结构进行了优化设计。优化之后的仿真结果表明,该车的吸能能力得到了明显的改善,驾驶室变形量也得到了明显的降低。最后进行了约束系统碰撞分析,结果表明乘员伤害值满足设计的法规要求。

First of all to the design of the commercial vehicle structure crashworthiness analysis model, Then based on the B pillar acceleration waveform curve trend as well as the deformation of the cab of the vehicle structure optimization design. After optimization of the simulation results show that the car＇s energy absorption capacity has been improved, the bridge deformation also had significantly lower. Finally has carried on the constraint system collision analysis, results showed that the occupant injury value can satisfy the demands of design rules.