轿车侧面碰撞安全性分析  

Research on the Vehicle Side Impact Safety

作　　者：陈旭[1] 姜亚洲[1,2] 

机构地区：[1]重庆大学机械工程学院,重庆400044 [2]重庆大学研究生创新基地,重庆400044

出　　处：《重庆理工大学学报（自然科学）》2012年第8期1-5,共5页Journal of Chongqing University of Technology：Natural Science

摘　　要：针对某中低档轿车侧面碰撞安全性差的情况,建立了该轿车侧面碰撞仿真模型,对其侧面车身结构进行改进,合理地利用车体结构和材料特性来改善汽车碰撞时的变形模式和吸能机理。改进前、后的侧面碰撞仿真结果表明,优化后车门和B柱的侵入量以及B柱侵入速度明显减小,车辆的侧面碰撞安全性得到显著提高。Aiming at improving the poor side impact safety of a middle and low class vehicle the side impact simulation model of the vehicle is established. An improvement scheme is put forward to the body structure by optimizing the way of energy transfer and the match of stiffness and strength of structural components, for changing deformation mode of structure and mechanism of energy release in a reasonable way. The conclusion has indicated that the intrusion displacement of the door and B-pillar and the B-pillar＇ s intrusion velocity decrease significantly. The vehicle side impact safety is improved significantly.

关 键 词：侧面碰撞 结构耐撞性 有限元仿真 

分 类 号：U467[机械工程—车辆工程]