基于某款微型电动车的行人保护头部优化分析及试验验证
Optimization Analysis and Experimental Verification of Pedestrian Head Protection Based on a Certain Micro Electric Vehicle
贺鑫 1李伟1
作者信息
- 1. 奇瑞新能源汽车股份有限公司,安徽芜湖 241000
- 折叠
摘要
以某款出口欧盟的微型电动车为例,该车须满足UN R127《关于批准机动车行人安全性能的统一规定》要求,方能顺利通过法规认证.腿部开发完毕后,在满足UN R127 腿部法规要求的基础上,简化整车碰撞模型,截取前端结构并细化网格,建立行人保护基础模型.初步仿真分析发现,该车不满足法规头部试验要求.通过研究仿真动画、测量数据模型距离可知,大灯、流水槽区域缺乏头部吸能空间.锁定优化方案后,重新代入行人保护模型进行分析计算,在优化结果可行后又进行了实际试验,发现关键风险点均满足法规要求,证明了优化方案的可行性和仿真分析的必要性.
Abstract
The paper takes a micro electric vehicle exported to the European Union as an example,which meets requirements of UN R127"Uniform provisions concerning the approval of motor vehicles withregard to their pedestrian safety performance"to pass regulatory certification successfully.After finishing leg development,the paper simplifies vehicle collision model,establishes a pedestrian protection basic model by cutting off front-end structure and refining the mesh based on meeting leg regulations in UN R127.Preliminary simulation analysis finds,the vehicle can not meet requirements of regulatory head test.Study on simulation animations and measuring distance of data models shows,there is less energy absorption space for the head at headlight and water channel areas.After confirming the optimization plan,the paper input data into pedestrian protection model for analysis and calculation,carries on practical experiments after confirming feasibility of optimization results.It is found that key risk points meet regulatory requirements,which proves feasibility of the optimization plan and necessity of simulation analysis.
关键词
UN/R127/行人保护/优化设计/试验验证Key words
UN R127/pedestrian protection/optimization design/experimental verification引用本文复制引用
出版年
2024
NETL
NSTL
万方数据