| 轻型货车前纵梁碰撞吸能特性分析 |
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| 引用本文： | 都雪静,王占宇,陈琳,陆昊.轻型货车前纵梁碰撞吸能特性分析[J].重庆交通大学学报(自然科学版),2013,32(3):525-528. |
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| 作者姓名： | 都雪静 王占宇 陈琳 陆昊 |
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| 作者单位： | 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 |
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| 基金项目： | 中央高校基本科研业务费专项资金，国家自然科学基金，黑龙江省教育厅科技项目 |
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| 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13.5 m/s,货车整备质量2.5 t条件下,碰撞发生2 ms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2 ms时出现吸能峰值。
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| 关 键 词： | 车辆工程 正面碰撞 轻型货车 吸能特性 |
Energy-Absorbing Characteristics of Front Rail of Light-Duty Truck in the Course of Collision |
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| Du Xuejing
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Wang Zhanyu
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Chen Lin
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Lu Hao.Energy-Absorbing Characteristics of Front Rail of Light-Duty Truck in the Course of Collision[J].Journal of Chongqing Jiaotong University,2013,32(3):525-528. |
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| Authors: | Du Xuejing Wang Zhanyu Chen Lin Lu Hao |
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| Institution: | 1 (1.School of Traffic,Northeast Forestry University,Harbin 150040,Heilongjiang,China; 2.National Automobile Quality Supervision Test Center(Xiangyang),Xiangyang 441004,Hubei,China) |
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| 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. |
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| Keywords: | vehicle engineering frontal collision light-duty truck energy-absorbing characteristics |
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