| 货车后下部防护装置碰撞仿真及优化设计 |
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| 引用本文： | 叶新娜,;杨明,;张志勇.货车后下部防护装置碰撞仿真及优化设计[J].西华大学学报(自然科学版),2014,33(5):98-102. |
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| 作者姓名： | 叶新娜 ;杨明 ;张志勇 |
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| 作者单位： | [1]河南交通职业技术学院,河南郑州450000; [2]司法部司法鉴定科学技术研究所,上海200063 |
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| 摘 要： | 针对目前货车后下部防护装置难以保证防止钻撞功能的问题，对后下部防护装置进行优化设计。依据GB 11567. 2—2001对汽车后下部防护装置的要求，利用LS-DYNA仿真软件对优化后的后下部防护装置进行碰撞仿真对比分析。通过动态仿真优化前后的后下部防护装置在碰撞过程中的变形、碰撞速度、碰撞减速度以及吸能情况，证明优化后的后下部防护装置在各项性能上都得到了提高，在发生后车追尾碰撞的时候，既能缓冲瞬时冲击，又能有效阻挡后车钻入，避免恶性事故发生。
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| 关 键 词： | 后下部防护装置 有限元 斜支撑 仿真 优化 |
Study on Crash Simulation and Structure Optimization of the Rear Bumper of a Truck |
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| YE Xin-na;YANG Ming;ZHANG Zhi-yong.Study on Crash Simulation and Structure Optimization of the Rear Bumper of a Truck[J].Journal of Xihua University:Natural Science Edition,2014,33(5):98-102. |
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| Authors: | YE Xin-na;YANG Ming;ZHANG Zhi-yong |
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| Affiliation: | YE Xin-na, YANG Ming, ZHANG Zhi-yong ( 1. Henan Communication Vocational Technology College, Zhengzhou 450005 China ; 2. Ministry of justice Forensic Science and Technology Research Institue , Shanghai 200063 China) |
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| Abstract: | To solve the problem on rear bumper of a truck which has no functions of blockage and damping and energy absorption , rear bumper is optimized and simulative analysis and validation are carried out with LS -DYNA in accordance with related regulation of GB 11567.2-2001 concerning rear bumper .The simulation analysis of deformation velocity and deceleration show that the optimized design of the rear bumper after the performance has been optimized , can weaken the instantaneous impact , and avoid the rear car to im-pact the truck . |
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| Keywords: | rear bumper finite element model inclined support simulation optimization |
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