单车级初始运行状态对地铁列车碰撞响应影响的仿真分析
吕锐娟1雷成2朱涛1肖守讷1阳光武1杨冰1
Simulation Analysis of Single-vehicle-level Initial Operating States on Metro Train Collision Responses
LYU RuijuanLei ChengZhu TaoXiao ShouneSunshine WuYang Bing
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作者信息:1.西南交通大学牵引动力国家重点试验室, 610031, 成都;
2.郑州铁路职业技术学院机车车辆学院, 451460, 郑州
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Affiliation: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.2022.04.025
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中图分类号/CLCN:U270.1+4
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栏目/Col:研究报告
摘要:
以某市域地铁列车为研究对象，研究单车级初始运行状态对列车碰撞响应的影响。建立了动力学仿真模型，提取列车运行过程中4种典型的几何姿态,分析了不同单车级初始状态对列车碰撞响应的影响规律及发生机理；提出了一种抑制列车碰撞过程中爬车和侧翻的车间防爬防偏吸能装置。研究表明：单车级状态差异通过钩缓装置的正反馈机制和传递机制的作用影响列车的碰撞响应，但对列车纵向响应基本无影响，对横向响应的影响大于垂向响应；单车垂向初始状态仅影响邻近车辆的响应，而横向初始状态对列车整体响应的影响都比较显著；评价列车脱轨风险时应同时考虑车体的姿态响应和轮对抬升量；通过设置车间防爬防偏吸能装置，可以有效改善列车碰撞稳定性。
Abstracts:
Taking certain suburban metro train as research object, the influence of single-vehicle-level initial operating states on train collision responses is studied. A dynamics simulation model is established, and four typical geometric poses during train operation are analyzed and extracted. The influencing pattern and mechanism of different single-vehicle-level initial states on the train collision responses are analyzed. An anti-climbing and anti-biasing energy-absorbing device between vehicles is proposed to restrain climbing and rolling upon train collision. Study shows that the collision responses in different initial states are dominated by the positive feedback mechanism and transmission mechanism of the coupler-buffer device, which has practically no effect on the longitudinal responses and the impact on the lateral responses is greater than on the vertical ones. Only adjacent vehicles are affected by the vertical initial states, while the entire vehicle responses are significantly affected by the lateral initial states. The vehicle body geometric poses and lifting amount of wheelsets should be both considered to evaluate the train derailment risk. The collision stability can be effectively improved by the anti-climbing and anti-biasing energy-absorbing device between vehicles.
引文 / Ref:
吕锐娟, 雷成, 朱涛, 等. 单车级初始运行状态对地铁列车碰撞响应影响的仿真分析. 城市轨道交通研究, 2022, 25(4): 113.
LYU Ruijuan, Lei Cheng, Zhu Tao, et al. Simulation analysis of single-vehicle-level initial operating states on metro train collision responses. Urban Mass Transit, 2022, 25(4): 113.
LYU Ruijuan, Lei Cheng, Zhu Tao, et al. Simulation analysis of single-vehicle-level initial operating states on metro train collision responses. Urban Mass Transit, 2022, 25(4): 113.
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