基于行人腿部保护的车辆前端结构改进研究  

Research on the improvement of the vehicle’s front structure based on pedestrian leg protection

作　　者：孙丽 罗芬 郑颢 常浩 江汉林 SUN Li;LUO Fen;ZHENG Hao;CHANG Hao;JIANG Han-lin(Guangzhou Automotive Group Co.,Ltd.,Automotive Engineering Institute,Guangzhou 510641)

机构地区：[1]广州汽车集团股份有限公司汽车工程研究院,广东广州510641

出　　处：《机械设计》2020年第12期118-122,共5页Journal of Machine Design

摘　　要：针对某轿车车型柔性腿内侧韧带伸长量超标,不满足2018版C-NCAP开发要求,建立车辆与行人腿部碰撞分析模型,通过分析仿真动画和曲线,并结合腿型主要支撑位置的受力情况,对该车型前端结构进行了优化改进,经试验验证优化后小腿区域试验可达到满分,满足开发目标。In response to the excess of MCL for a sedan,which fails to meet the development requirements of 2018 C-NCAP,in this article a vehicle-pedestrian CAE model is set up;the vehicle’s front-end structure is optimized by analyzing the simulated animation and curve on one hand and combining the section-force of the main supporting position of FLEX-PLI on the other hand.Finally,the lower-legform test ensures full marks and reaches the goals of development.

关 键 词：柔性腿型 轿车 车辆-行人模型 韧带伸长量 

分 类 号：U461.91[机械工程—车辆工程]