悬挂式单轨车辆走行轮失效对曲线通过及运行平稳性影响的仿真分析
杜子学刘又铭杨震周军超许舟洲
Simulation Analysis of Influence of Running Wheel Failure on Curve Passage and Running Stability of Suspended Monorail Vehicles
DU ZixueLIU YoumingYANG ZhenZHOU JunchaoXU Zhouzhou
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作者信息:重庆交通大学轨道交通研究院，400074，重庆
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Affiliation:Research Institute of Rail Transit，Chongqing Jiaotong University，400074，Chongqing,China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.01.009
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中图分类号/CLCN:U270.1+ 1； U232
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栏目/Col:研究报告
摘要:
悬挂式单轨车辆走行轮在车辆运行中起到承载和 传力的重要作用，其走行轮失效对悬挂式单轨车辆运行性能 有重大影响。 通过多刚体动力学理论建立悬挂式单轨车轨耦 合动力学模型，仿真分析了不同工况下走行轮失效对单轨车 辆曲线通过及运行平稳性的影响。 仿真结果表明：空载状态 下走行轮失效的悬挂式单轨车辆在曲线半径 100 m 的线路 上限速为 35 km/h， 而满载状态下走行轮失效的车辆一直处 于不安全状态，需要尽快行驶到就近站点疏散乘客；同侧走 行轮失效对单轨车辆的影响趋势基本一致；在相同行车速度 下， 走行轮失效时竖向平稳性指标出现了部分数值超过 3.0 的情况，说明走行轮失效时车辆的运行平稳性会变差。 仿真 研究结果可为走行轮失效的悬挂式单轨车辆运行提供参考。
Abstracts:
The suspended monorail vehicle running wheel plays an important role in carrying and transmitting force during vehicle operation. The running wheel failure has a significant impact on the running performance of the suspended monorail vehicle. The suspended monorail rail coupling dynamics model is established by multi-rigid dynamics theory，and the influence of running wheel failure on the curve passage and running stability of monorail vehicles under different working conditions is simulated and analyzed. The simulation results show that the speed limit of the suspended monorail vehicle with running wheel failure under no -load condition is 35 km/h on the curvewith a radius of 100 m，and the vehicle with running wheel failure under full load condition is always in unsafe state， necessary to be driven to the nearest station as soon as possible to evacuate passengers；the influence of running wheel failure on the same side of the monorail vehicle is basically the same；at the same driving speed, the vertical stability index shows a partial value exceeding 3.0 when the running wheel failure occurs, demonstrating that the running stability of the vehicle worsens when the running wheel fails. The simulation research results can provide reference for the operation of suspended monorail vehicles with running wheel failure.
时评 / Commentary
引文 / Ref:
杜子学，刘又铭，杨震.悬挂式单轨车辆走行轮失效对曲线通过及运行平稳性影响的仿真分析[J].城市轨道交通研究，2021，24（1）：42.
DU Zixu，LIU Youming，YANG Zhen.Simulation Analysis of Influence of Running Wheel Failure on Curve Passage and Running Stability of Suspended Monorail Vehicles[J].Urban mass transit，2021，24（1）：42.
DU Zixu，LIU Youming，YANG Zhen.Simulation Analysis of Influence of Running Wheel Failure on Curve Passage and Running Stability of Suspended Monorail Vehicles[J].Urban mass transit，2021，24（1）：42.
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