| 基于提高轿车后面抗撞性能的后纵梁结构优化 |
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| 引用本文： | 孙喜龙,王登峰,卢放,陈晓斌. 基于提高轿车后面抗撞性能的后纵梁结构优化[J]. 吉林大学学报(工学版), 2011, 0(Z2): 87-91 |
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| 作者姓名： | 孙喜龙 王登峰 卢放 陈晓斌 |
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| 作者单位： | 吉林大学汽车仿真与控制国家重点实验室;一汽-大众汽车有限公司 |
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| 基金项目： | “863”国家高技术研究发展计划项目(2006AA110102) |
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| 摘 要： | 以某轿车为研究对象,参照国家标准GB20072—2006《乘用车后碰撞燃油系统安全要求》,建立整车后面碰撞仿真分析模型。用PAM-CRASH显式分析软件计算整车140ms的后面碰撞响应过程,并通过仿真与试验结果的对比分析,验证了所建整车后碰模型的有效性。结合试验与仿真结果发现,该车型存在后纵梁变形吸能不充分和车体加速度较高等不足,通过对后纵梁进行结构优化和改进,改进后的仿真分析结果较为理想,满足后碰被动安全性要求,提高了车身结构后面抗撞性能。
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| 关 键 词： | 汽车工程 后面碰撞 被动安全 结构优化 |
Structural optimization of rear longeron based on the improving the rear crashworthness |
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| SUN Xi-long,WANG Deng-feng,LU Fang,CHEN Xiao-bin. Structural optimization of rear longeron based on the improving the rear crashworthness[J]. Journal of Jilin University:Eng and Technol Ed, 2011, 0(Z2): 87-91 |
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| Authors: | SUN Xi-long WANG Deng-feng LU Fang CHEN Xiao-bin |
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| Affiliation: | 1,2(1.State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China;2.FAW-Volkswagen Auto.Co.,Ltd.,Changchun,130011,China) |
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| Abstract: | The rear impact model of full vehicle was built according to "GB20072—2006 the requirements of fuel system safety in the event of rear-end collision for passenger car".Collision response of 140 ms was calculated by PAM-CRASH.The comparison of simulaton and test verified the model validity and found the lack of enegy absorption of rear longeron and higher acceleration.The objective was to optimize the rear longeron structure for the increased rear crashworthness,and it was satisfied with the requirement of national standard. |
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| Keywords: | vehicle engineering rear impact passive safety structural optimization |
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