| 耐冲击地铁车辆设计及整车碰撞研究 |
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| 引用本文： | 谢素超,田红旗,周辉.耐冲击地铁车辆设计及整车碰撞研究[J].铁道科学与工程学报,2008,5(5). |
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| 作者姓名： | 谢素超 田红旗 周辉 |
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| 作者单位： | [1]中南大学轨道交通安全教育部重点实验室,湖南长沙410075 [2]中南大学CAD／CAM集成技术实验室,湖南长沙410075 |
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| 基金项目： | 国家自然科学基金，铁道部科研项目 |
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| 摘 要： | 针对地铁车辆自身特点进行耐冲击地铁车辆吸能结构设计,提出了耐冲击地铁车辆设计理念,将该地铁头车在撞击过程中的能量吸收过程设计为4级:第1级为车钩缓冲装置缓冲器,第2级为缓冲装置中的压渍变形管,第3级为车钩剪切螺栓,第4级为位于头车前端底架的吸能结构和防爬器等可变形结构.并对地铁中耐冲击车体进行了研究,在车体结构中于指定部位设计大塑性变形结构,即设置专用吸能结构;建立了该地铁头车的车体碰撞模型,进行了各碰撞工况的数值仿真.研究结果表明:在撞击过程中吸能结构从预期部位开始发生稳定有序的塑性变形,车体客室仅发生弹性变形,大部分冲击动能(超过80%)转化为吸能结构的塑性变形,表明该车具有很好的耐冲击效果.
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| 关 键 词： | 地铁车辆 耐冲击 吸能结构 数值仿真 显式有限元 |
The design of crashworthy subway vehicle and crash research of whole car-body |
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| XIE Su-chao,TIAN Hong-qi,ZHOU Hui.The design of crashworthy subway vehicle and crash research of whole car-body[J].Journal of Railway Science and Engineering,2008,5(5). |
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| Authors: | XIE Su-chao TIAN Hong-qi ZHOU Hui |
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| Institution: | XIE Su-chao1,TIAN Hong-qi1,ZHOU Hui2(1.Key Laboratory for Track Traffic Safety of Ministry of Education,Central South University,Changsha 410075,China,2.CAD /CAM Integrated Technology Laboratory,China) |
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| Abstract: | Based on the characteristics of railway vehicles,the crashworthy subway vehicle was designed.The design concept of crashworthy car-body was proposed and the energy-absorbing process of the head car impact was divided into four steps: the first step is the rubber buffer of the buffer equipment of vehicle coupler;the second is the buffer with collapsible tube;the third is the cut bolt of vehicle coupler;the fourth is the special energy-absorbing structures and the anti-climbers on the underframe of head car.B... |
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| Keywords: | subway vehicle crashworthiness energy-absorbing structure numerical simulation explicit finite element |
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