基于某车型的UN R127行人保护分析及优化  

UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE

作　　者：王圣波 葛红剑 杨婷 刘钢[2] 马惠珍 WANG ShengBo;GE HongJian;YANG Ting;LIU Gang;MA HuiZhen(Department of Industry and Information Engineering,Vocational Technology College of Hainan,Haikou 570216,China;Faw Haima Automobile Co.,Ltd.,Haikou 570216,China)

机构地区：[1]海南职业技术学院工业与信息学院,海口570216 [2]一汽海马汽车有限公司,海口570216

出　　处：《机械强度》2022年第5期1249-1254,共6页Journal of Mechanical Strength

基　　金：“十二五”国家科技支撑计划项目(2013BAG07B00);海南省高等学校教育教学改革研究项目(Hnjg2017ZD-23,Hnjg2020-129);海南职业技术学院“智能信息技术研究与应用”科研团队成果资助。

摘　　要：某汽车进口国2018年起,将UN R127行人保护法规纳入该国强制性法规,因此需对某款常年出口车型进行UN R127行人保护性能评估,以便顺利通过法规认证。通过有限元方法,对该车型进行行人保护仿真分析,仿真腿型碰撞满足法规要求,但头型存在不满足法规的区域,为此针对不满足法规的区域进行原因分析,提出可行的整改方案,制作样件并进行实车试验,最终一次性通过UN R127法规试验认证,并将风险点仿真优化后的数据与试验进行对比,偏差为1.9%,表明搭建的有限元模型的可靠性,为后续车型行人保护设计开发提供参考。The regulation UN R127 is the must for the import country since 2018, In order to successfully pass the regulatory certification, so the pedestrian protection performance of the vehicle should be evaluated. In this paper, the pedestrian protection analysis was done by finite method, and the results show that the legform satisfy the regulation, but some area of the head don′t satisfy the requirements of the regulation. So some optimization analysis was made that aimed at the fail area to pass the UN R127 pedestrian protection certification test successfully. Comparing the optimized data of risk points with the experiment, the deviation is 1.9%, which shows the reliability of building the finite element model, and provide reference for the design and development of pedestrian protection for subsequent models.

关 键 词：行人保护 UN R127 头型碰撞 有限元 优化 试验验证 

分 类 号：U270.14[机械工程—车辆工程] U461.91[交通运输工程—载运工具运用工程]