轻型校车A柱正面耐撞性仿真分析及优化  

Simulation and Optimization for A-pillar of Light-duty School Bus

作　　者：卢山 沈磊 何润华 卫董程 汪谟清 李敏 

机构地区：[1]南京汽车工程研究院 [2]南京94860部队

出　　处：《上海汽车》2015年第7期14-17,共4页Shanghai Auto

摘　　要：针对某轻型校车正面碰撞过程中前门变形超标的问题,通过使用Hypermesh和LS-DYNA软件进行整车建模和仿真,分析发现原车前端存在力传递路径不合理的问题,并据此对车身进行结构优化。结果验证显示,优化后校车A柱后移量明显减少,证明该方法可有效地提高轻型校车的耐撞性,对于同类车型的A柱耐撞性设计有较强的工程意义。The question is raised as a light - duty school bus front door deformation exceed target value in front impact test. The crash model is constructed and simulated by HyperMesh and LS - DYNA software. It is found that crash force transmission path is unreasonable by analyzing the simu- lation result, and body structure is simulated. After optimization the displacement between A pillar and B pillar is decreased obviously. The adoption of this solution can improve the structural crashworthiness of the light - duty school bus, and it has a strong engineering practicability.

关 键 词：轻型校车 正面碰撞 力传递路径 结构耐撞性 

分 类 号：U467.14[机械工程—车辆工程]