基于大壁障侧碰和75°侧柱碰的车身耐撞性和乘员损伤研究  

The research on vehicle crashworthiness and occupant injury based on AEMDB side impact and 75° side pole impact

作　　者：钮嘉颖 郭刚[1] 丁玲[1] 黄颖[1] 向保才 

机构地区：[1]东风汽车公司技术中心,武汉430058

出　　处：《汽车科技》2017年第5期77-84,共8页Auto Sci-Tech

摘　　要：基于侧面碰撞对乘员损伤的严重性,运用试验法和仿真法对某车型的侧面碰撞性能和乘员损伤进行研究。通过对车身侧面结构变形、速度响应、乘员损伤情况进行分析,得出了大壁障侧碰和75°侧柱碰的碰撞特性,并提出了B柱、前后门、门槛梁的优化方案。结果表明:相较于MDB壁障侧碰和90°侧柱碰,大壁障侧碰和75°侧柱碰对车身耐撞性提出了更高的要求,对前后排乘员造成了更严重的损伤。通过对侧面车身结构的优化,有效地降低了车身各部位的侵入量和侵入速度,增大了乘员的生存空间,提升了车身安全性。Based on the seriousness of side impact on the occupant injury, to study the side crash performance and occupant injury of a vehicle by using the test method and simulation method. Through the analysis of the side structure deformation, velocity response and occupant injury, we obtain the crash characteristics of the AEMDB side impact and 75°side pole impact and propose the optimization method of the B-pillar, the front door, the rear door and threshold beam. The results show that compared with MDB side impact and 90°side pole impact, AEMDB side impact and 75~side pole impact put forward higher requirements on the vehicle crashworthiness, and cause more serious damage on the front and rear occupants. By optimizing the side structure of the vehicle, effectively reduce the intrusion displacement and the invasion rate of the various parts of the body, increase occupants＇ living space, and enhance the body safety.

关 键 词：侧面耐撞性 乘员损伤 优化设计 

分 类 号：U467.14[机械工程—车辆工程]