中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (3): 525-528.DOI: 10.3969/j.issn.1674-0696.2013.03.36

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轻型货车前纵梁碰撞吸能特性分析

都雪静1,王占宇1,陈琳2,陆昊1   

  1. 1.东北林业大学交通学院,黑龙江哈尔滨150040;2.国家汽车质量监督检验中心(襄阳),湖北襄阳441004
  • 收稿日期:2012-05-06 修回日期:2012-08-02 出版日期:2013-06-15 发布日期:2015-03-12
  • 作者简介:都雪静(1975—),女,吉林通化人,副教授,博士,主要从事交通环境与安全技术方面的研究。E-mail:duxuejing@yahoo.com.cn.
  • 基金资助:
    中央高校基本科研业务费专项资金( DL12CB03) ; 国家自然科学基金( 51108068) ; 黑龙江省教育厅科技项目( 11553025)

Energy-Absorbing Characteristics of Front Rail of Light-Duty Truck in the Course of Collision

Du Xuejing1,Wang Zhanyu1,Chen Lin2,Lu Hao1   

  1. 1.School of Traffic,Northeast Forestry University,Harbin 150040,Heilongjiang,China; 2.National Automobile Quality Supervision Test Center ( Xiangyang) ,Xiangyang 441004,Hubei,China
  • Received:2012-05-06 Revised:2012-08-02 Online:2013-06-15 Published:2015-03-12

摘要: 为分析某轻型货车前纵梁碰撞吸能特性,以碰撞理论为基础,运用CATIA软件建立前纵梁有限元分析模型, 进行ANSYS/LS-DYNA模拟仿真。结果表明:车架前纵梁在碰撞中的变形吸收了大部分的能量,车架的最大变形位 于纵梁的变截面处;纵梁的初速度为13.5m/s,货车整备质量2.5t条件下,碰撞发生2ms后由于材料的塑性变形 而产生峰值减速度,随后材料变形失效;车架前纵梁吸能特性与减速度相似,位于碰撞发生2ms时出现吸能峰值。

关键词: 车辆工程, 正面碰撞, 轻型货车, 吸能特性

Abstract: Based on the collision theory,the energy-absorbing characteristics of light-duty truck are analyzed by establishing the finite-element model in CATIA and carrying out the simulation through the software ANSYS /LS-DYNA. The results show that most collision energy is absorbed by front rails of vehicle frame. The maximum deformation position is located in variable cross-section of vehicle frame. The deceleration peak caused by the failure of plastic deformation appears 2 ms later, when the initial collision velocity is 13. 5 m/s and the whole equipment quality of truck is 2. 5 t. Similar to the deceleration, the absorbing peak of vehicle frame appears 2 ms after the collision.

Key words: vehicleengineering, frontalcollision, light-dutytruck, energy-absorbingcharacteristics

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