载货汽车正面碰撞车架结构优化设计  

Structural Optimization Design of Truck Frame in Frontal Collision

作　　者：油一龙 You Yilong(Chery commercial vehicle(Anhui)Co.,Ltd.,Wuhu 241009)

机构地区：[1]奇瑞商用车(安徽)有限公司,芜湖241009

出　　处：《中国汽车》2021年第11期43-48,共6页China Auto

摘　　要：随着汽车消费的升级,消费者对汽车安全越来越关注,尤其是短头式的载货汽车,由于其前部吸能空间较短,总质量较高,对碰撞安全的要求就越高。现有的前板簧结构的载货汽车车架纵梁结构为槽型结构,强度高,且前端无碰撞吸能结构,整车发生高速碰撞时车架不能迅速溃缩吸收冲击能量,冲击大对乘员造成人身伤害。文章通过对某款小货车架纵梁结构进行分析,提出了优化方案。并进行CAE正面碰撞仿真分析,分析表明,优化后纵梁变形型式改变,吸能效果得到了很大提升,提升了整车的正面碰撞性能。With the upgrading of automobile consumption,consumers pay more and more attention to automobile safety,especially the short head truck,because of its short front energy absorption space and high total quality,the requirements for collision safety are higher and higher.The existing truck frame longitudinal beam structure of the front leaf spring structure is a groove structure with high strength and no collision energy absorption structure at the front end.When the whole vehicle has a high-speed collision,the frame can not collapse quickly to absorb impact energy,and the impact is large,causing personal injury to passengers.This paper analyzes the longitudinal beam structure of a small truck frame,and puts forward the optimization scheme.The CAE frontal collision simulation analysis shows that the energy absorption effect has been greatly improved and the frontal collision performance of the whole vehicle has been improved by changing the deformation type of the longitudinal beam after optimization.

关 键 词：车架 正面碰撞 吸能 前板簧悬架 结构优化 

分 类 号：U46[机械工程—车辆工程]