UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE

WANG ShengBo; GE HongJian; YANG Ting; LIU Gang; MA HuiZhen

doi:10.16579/j.issn.1001.9669.2022.05.034

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UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE

更新时间：2022-11-10

- UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE
- Journal of Mechanical Strength Vol. 44, Issue 5, Pages: 1249-1254(2022)
- 作者机构：
  
  1. 海南职业技术学院工业与信息学院
  2. 一汽海马汽车有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.05.034
  CLC：
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WANG ShengBo, GE HongJian, YANG Ting, et al. UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE. [J]. 44(5):1249-1254(2022)
DOI：

WANG ShengBo, GE HongJian, YANG Ting, et al. UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE. [J]. 44(5):1249-1254(2022) DOI： 10.16579/j.issn.1001.9669.2022.05.034.

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。

Abstract

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

Keywords

Pedestrian protectionUN R127Headform impactFinite elementOptimizationTest verification

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