行李箱冲击中后座椅结构优化分析

Optimization of Seat Structure Based on Impact Simulation of Cargo Container

对某车型进行行李箱冲击仿真分析和结构优化,利用HyperMesh前处理软件进行行李箱冲击有限元模型搭建,并通过LS-DYNA有限元软件进行求解计算,通过仿真分析结果对座椅结构不合理之处进行优化改进,使其满足法规变形目标要求,有效地保障了后排乘员的安全,提升了后排座椅的抗冲击能力。优化方案成功应用于该车型并通过行李箱冲击强制法规试验验证。该优化方案对乘用车座椅设计具有普遍的指导意义。

This paper does the simulation analysis of impact of a cargo container and its structure optimization, HyperMesh processing software is used to set up its finite element model and the finite element software LS-DYNA with display is used to do the numerical calculation. According to the simulation analysis results the seat structure is optimized and improved, so that it meets the requirements of its design, thus effectively ensuring the safety of the rear occupant and improving the shock resistance of the rear seat. The optimization scheme is successfully applied to this model and the impact of cargo container is tested and verified. This scheme is of universal guiding significance for the design of the passenger car seat.