基于汽车低速碰撞的尾部安全性能分析和改进

龙述尧;许莹莹;曾 塬;黄健梓

doi:10.3981/j.issn.1000-7857.2011.02.008

科技导报 >

2011 , Vol. 29 >Issue 11-02: 49 - 53

DOI: https://doi.org/10.3981/j.issn.1000-7857.2011.02.008

研究论文

基于汽车低速碰撞的尾部安全性能分析和改进

龙述尧;许莹莹;曾塬;黄健梓

展开

1. 湖南大学汽车车身先进设计制造国家重点实验室，长沙 4100822. 广州汽车集团股份有限公司汽车工程研究院，广州 510640

收稿日期: 2010-09-28

修回日期: 2010-11-29

网络出版日期: 2011-01-18

收起

Rear Safety Performance Analysis and Improvement Based on Automobile Low-speed Collision

Expand

Received date: 2010-09-28

Revised date: 2010-11-29

Online published: 2011-01-18

Fold

摘要

中国城市的交通比较拥堵，汽车在日常行驶中常发生倒车、追尾等事故，造成汽车后保险杠甚至车体损伤。针对汽车低速尾部碰撞事故，本文建立了汽车整车有限元模型，从吸能和对车体的保护角度评价保险杠系统的保护能力。根据仿真结果，将保险杠横梁的材料选为高强度钢，对保险杠系统的碰撞性能进行改进。结果表明，改进后的保险杠系统不仅满足碰撞法规要求，而且实现了减重45%的轻量化目标。

关键词： 低速碰撞; 保险杠; 耐撞性; 轻量化

本文引用格式

龙述尧;许莹莹;曾塬;黄健梓 . 基于汽车低速碰撞的尾部安全性能分析和改进[J]. 科技导报, 2011 , 29(11-02) : 49 -53 . DOI: 10.3981/j.issn.1000-7857.2011.02.008

Abstract

In the recent years, the traffic condition becomes increasingly crowded in Chinese cities. Tail-crash and reverse-collision take place every now and then in the daily drive, which cause damages to a rear bumper or even the body of vehicle. A finite element model of one vehicle was established and the protective performance of the rear bumper in the vehicle was studied from the energy absorption and body protections for the vehicle under the condition of rear-end accidents with a low speed. As a result of the environmental protection and the energy conservation, automobile lightweight already became the tidal current of the world automobile develops. Under the condition guaranteed the safety performance of the vehicle, the automobile should work towards light weighed target improvement. According to the simulation results, the material used for the beams on the rear bumper were modified to high-tensile steel, which made the crashworthiness of rear bumper remarkable improved. The result indicates that the bumper system after modified not only satisfies the requirements of the collision law and regulation, but also makes the weight of the bumper system reduce by 45%.

Key words： low-speed collision; bumper; crashworthiness; light weighting

Options

文章导航

摘要

本文引用格式

Abstract

联系我们

访问统计

模态框（Modal）标题

摘要

本文引用格式

Abstract

联系我们

访问统计