| 薄壁直梁碰撞性能仿真和参数影响分析 |
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| 引用本文： | 彭洪梅,胡平,申国哲,吴沈荣,王安东. 薄壁直梁碰撞性能仿真和参数影响分析[J]. 汽车工程, 2011, 33(9) |
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| 作者姓名： | 彭洪梅 胡平 申国哲 吴沈荣 王安东 |
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| 作者单位： | 1. 大连理工大学汽车工程学院,大连,116024
2. 奇瑞汽车股份有限公司汽车工程研究院,芜湖,241009 |
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| 基金项目： | 国家863计划(2009AA04Z101); 国家自然科学基金重点项目(10932003); 国家重大基础研究发展计划(973计划)(2010CB832700)联合资助 |
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| 摘 要： | 为研究材料及其厚度和结构圆角对汽车主要吸能结构前纵梁的碰撞性能的影响,建立了模拟前纵梁的薄壁直梁有限元模型,对其进行了正面碰撞仿真,并分析了材料与结构参数对薄壁直梁碰撞吸能的影响。结果表明,在相同的压溃距离下,直梁吸能与材料强度呈指数小于1的幂指数的增长关系;与厚度呈现指数大于1的幂指数的增长关系;单位质量下壁梁圆角部分的吸能是平面部分的3倍左右。
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| 关 键 词： | 薄壁直梁 抗撞性能 仿真 吸能 |
Crashworthiness Simulation and Parameter Effects Analysis of Thin-walled Column |
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| Peng Hongmei,Hu Ping,Shen Guozhe,Wu Shenrong,Wang Andong. Crashworthiness Simulation and Parameter Effects Analysis of Thin-walled Column[J]. Automotive Engineering, 2011, 33(9) |
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| Authors: | Peng Hongmei Hu Ping Shen Guozhe Wu Shenrong Wang Andong |
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| Affiliation: | Peng Hongmei1,Hu Ping1,Shen Guozhe1,Wu Shenrong2 & Wang Andong11.School of Automotive Engineering,Dalian University of Technology,Dalian 116024,2.Automobile Engineering Research Institute,Chery Automobile Co.,Ltd.,Wuhu 241009 |
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| Abstract: | For studying the effects of material and its thickness and corner radius on the crashworthiness of front side rail as a major energy-absorbing component of vehicle,a finite element model for thin-walled column is built to simulate front rail.A crash simulation is conducted to analyze the effects of material and its thickness and other parameters on the absorbed energy of thin-walled column.The results show that under the same collapse distance,the absorbed energy and the material strength of thin-walled col... |
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| Keywords: | thin-walled column crashworthiness simulation energy absorption |
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