DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY

LEI ZhengBao; CHEN XiaoYong; ZHANG JiaBo

doi:10.16579/j.issn.1001.9669.2020.02.033

您当前的位置：

首页 >

文章列表页 >

DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY

更新时间：2022-09-22

- DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY
- Journal of Mechanical Strength Vol. 42, Issue 2, Pages: 475-479(2020)
- 作者机构：
  
  1. 长沙理工大学汽车与机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.02.033
  CLC：
扫描看全文
LEI ZhengBao, CHEN XiaoYong, ZHANG JiaBo. DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY. [J]. 42(2):475-479(2020)
DOI：

LEI ZhengBao, CHEN XiaoYong, ZHANG JiaBo. DESIGN OF RE-DIRECTIVE CRASH-CUSHION BASED ON COLLISION SAFETY. [J]. 42(2):475-479(2020) DOI： 10.16579/j.issn.1001.9669.2020.02.033.

摘要

针对目前可导向防撞垫的吸能单元在碰撞变形过程中挤压两侧波形板而导致波形板散落造成二次损伤的现状,从而提出了一种"H"型的吸能单元构型。根据我国《公路护栏安全性能评价标准》(JTGB05-01-2013)评价标准,设计了一种满足80 km/h碰撞速度的TA级可导向防撞垫,并通过建立车辆-防撞垫有限元仿真模型结合碰撞仿真试验,对TA级可导向防撞垫的碰撞安全性进行综合分析。结果表明,仿真计算所得车辆运行轨迹没有出现侧翻、攀爬和骑跨等现象,各碰撞工况车体的最大加速度分别为:17. 3g、16. 5g、14. 6g、8. 1g,满足碰撞安全性法规的评定标准要求。

Abstract

Aiming at the current situation that the energy absorbing unit of the re-directive crash-cushion squeezes the corrugated plates on both sides during the collision deformation,causing secondary damage caused by the wavy plate scattering,an "H"type energy absorbing unit configuration is proposed. According to Standard for Safety Performance Evaluation of Highway Barriers（ JTG B05-01-2013）,a TA grade re-directive crash-cushion is designed to meet the collision speed of 80 km/h requirement. Meanwhile,the finite element simulation model of vehicle and crash-cushion is established and combined with the collision simulation test,the collision safety of TA grade re-directive crash-cushion is comprehensively analyzed. It shows that the vehicle has no rollover,climbing or riding span. The maximum accelerations at each collision condition are 17. 3 g,16. 5 g,14. 6 g and 8. 1 g,which meet the requirement of the evaluation criteria for collision safety laws.

关键词

可导向防撞垫吸能单元有限元碰撞安全性

Keywords

Re-directive crash-cushionEnergy absorbing unitFinite elementCollision safety

references

Views

154

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

UN R127 PEDESTRIAN PROTECTION ANALYSIS AND OPTIMIZATION OF THE VEHICLE

EVALUATION FOR REMAINING LIFE OF BRIDGE CRANE BASED ON RADIAL BASIS NEURAL NETWORK

MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT

ANALYSIS OF DYNAMIC LOAD STRENGTH OF WIND TURBINE ROOT BOLT UNDER TURBULENCE MODEL

LIFE ANALYSIS OF LOW SPEED DIESEL ENGINE BEDPLATE BASED ON CRACK GROWTH

Related Author

No data

Related Institution

Faw Haima Automobile Co.,Ltd.

Department of Industry and Information Engineering,Vocational Technology College of Hainan

School of Mechanical Engineering, Taiyuan University of Science and Technology

School of Mechanical Engineering, University of Shanghai for Science and Technology

School of Mechanical Engineering, Shenyang University of Technology

⁰