城市轨道交通列车防倾覆装置研究
李本怀1王康2
Research on Anti-overturning Device of Urban Rail Transit Trains
LI Benhuai1WANG Kang2
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作者信息:1.中车长春轨道客车股份有限公司国家轨道客车工程研究中心，130062，长春
2.西南交通大学牵引动力国家重点实验室，610031，成都
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Affiliation:1.National Engineering Research Center of Railway Vehicles, CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
2.State Key Laboratory of Traction Power, Southwest Jiaotong University, 610031, Chengdu, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.08.053
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中图分类号/CLCN:U270.34
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栏目/Col:应用技术
摘要:
［目的］城市轨道交通列车在其运行过程中可能会出现碰撞、脱轨及倾覆等状况，需对此时列车的动态行为以及防倾覆技术进行研究。［方法］结合车辆实际风挡结构以及车辆运行的动态包络，提出了在车间安装安全带绳索作为防倾覆装置的方案，同时详细说明了该装置的结构及其接口位置。根据城市轨道交通列车动力学参数建立相应的动力学仿真模型，考虑车辆倾覆工况的实际条件，分别对列车进行有、无防倾覆装置的动力学仿真分析，并在合理的位置设置了防倾覆装置。通过动力学仿真软件对该装置的防倾覆效果进行验证，并对防倾覆装置安装座的静强度进行检算。［结果及结论］车间安装安全带绳索防倾覆装置的列车在倾覆力作用下能有效地减小车辆侧滚角，防止车体因侧滚角过大而发生倾覆，满足设计要求。在最大拉力作用下，安全带绳索防倾覆装置安装座的静强度未超出许用应力，其结构强度满足相关标准要求。
Abstracts:
［Objective］ During the operation of urban rail transit trains, incidents such as collisions, derailments and overturning may occur. It is essential to study the dynamic behavior of trains and the technology to prevent overturning under these conditions. ［Method］ Combining the actual vehicle windshield structure and vehicle dynamic envelope during operation, a scheme is proposed to install safety belt ropes as an inter-vehicle anti-overturning device, and the structure and interface position of the device are explained elaborately. A corresponding dynamics simulation model is established based on the dynamics parameters of urban rail transit trains. Considering the actual conditions of vehicle overturning scenarios, dynamics simulation analysis is conducted for trains with and without anti-overturning device, and the anti-overturning device is set up at appropriate positions. The effectiveness of the anti-overturning device is verified through dynamics simulation software, and the static strength of the anti-overturning device mounting seat is checked by calculation. ［Result & Conclusion］ The safety belt rope anti-overturning device installed between vehicles can effectively reduce vehicle rolling angle under overturning forces, preventing the carbody from overturning due to the excessive rolling angles, thereby meeting design requirements. Under maximum tensile force action, the static strength of the safety belt rope anti-overturning device mounting seat does not exceed allowable stress, and its structural strength meets the requirements specified in relevant standards.
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