列车碰撞仿真中钩缓装置模拟方法

肖守讷; 张志新; 阳光武; 朱涛

doi:10.3969/j.issn.0258-2724.2014.05.014

列车碰撞仿真中钩缓装置模拟方法

doi: 10.3969/j.issn.0258-2724.2014.05.014

基金项目:

国家自然科学基金资助项目（51275432，51205326）

中央高校基本科研业务费专项资金资助项目（SWJTU09ZT23）

详细信息

通讯作者:
朱涛（1984-），男，助理研究员，研究方向为车辆动力学、机车车辆被动安全性，E-mail：zhutao034@swjtu.cn

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出版历程
- 收稿日期: 2012-10-19
- 刊出日期: 2014-10-25

Simulation Method for Couplers and Buffers in Train Collision Calculations

摘要

摘要: 为了研究列车碰撞过程中的钩缓装置行为，提出了一种基于LS-DYNA离散梁单元模拟钩缓特性的仿真方法.以某6节编组的城市地铁列车36 km/h对撞工况为例，对钩缓装置的加载、卸载以及在极限载荷下的失效脱落等现象进行模拟，并计算钩缓装置对列车碰撞工况能量吸收的贡献程度.结果表明：该方法能够模拟碰撞时列车钩缓装置的力学特性以及车钩的失效和脱落现象，并且能得到连挂列车各位置钩缓装置的输出特性、能量吸收等指标；两列车对撞后，钩缓装置在碰撞过程中吸收能量占总能量的27%.
- 列车碰撞 /
- 钩缓装置 /
- 能量吸收 /
- 有限元分析
Abstract: In order to study the behaviors of couplers and buffers (CABs) accurately in the process of train collision, a new simulation method for analyzing the characteristics of CABs was proposed based on the discrete beam in LS-DYNA. This method was then verified through a case study where a head to head collision between two identical subway trains marshaled by 6 cars occurred under a scenario with a relative speed of 36 km/h. The CABs' loading and unloading conditions, as well as their failure and falling-off behaviors under the ultimate load were simulated, and the contribution of CABs in the total energy absorption of the train collision was analyzed. The results show that the proposed method can simulate effectively the mechanical properties of CABs and couplers' failure and falling-off behaviors in the train collision. In addition, it can be used to obtain the indexes such as output characteristics and energy absorption of CABs in different positions. During the train collision, the energy adsorbed by the CABs accounts for 27% of the total energy.
- train collision /
- couplers and buffers /
- energy absorbing /
- finite element analysis

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参考文献(14)

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文章访问数: 945
HTML全文浏览量: 58
PDF下载量: 619
被引次数: 0

列车碰撞仿真中钩缓装置模拟方法

doi: 10.3969/j.issn.0258-2724.2014.05.014

通讯作者: 朱涛（1984-），男，助理研究员，研究方向为车辆动力学、机车车辆被动安全性，E-mail：zhutao034@swjtu.cn

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出版历程

Simulation Method for Couplers and Buffers in Train Collision Calculations

计量

出版历程

目录

通讯作者:
朱涛（1984-），男，助理研究员，研究方向为车辆动力学、机车车辆被动安全性，E-mail：zhutao034@swjtu.cn