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地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究

张顺 江超 孙业聪

张顺, 江超, 孙业聪. 地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究[J]. 机械科学与技术, 2023, 42(7): 1050-1054. doi: 10.13433/j.cnki.1003-8728.20220057
引用本文: 张顺, 江超, 孙业聪. 地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究[J]. 机械科学与技术, 2023, 42(7): 1050-1054. doi: 10.13433/j.cnki.1003-8728.20220057
ZHANG Shun, JIANG Chao, SUN Yecong. Safety Analysis of Passing Through Twisted Track After Steel Spring Fracture of Metro Vehicle[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(7): 1050-1054. doi: 10.13433/j.cnki.1003-8728.20220057
Citation: ZHANG Shun, JIANG Chao, SUN Yecong. Safety Analysis of Passing Through Twisted Track After Steel Spring Fracture of Metro Vehicle[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(7): 1050-1054. doi: 10.13433/j.cnki.1003-8728.20220057

地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究

doi: 10.13433/j.cnki.1003-8728.20220057
详细信息
    作者简介:

    张顺(1981-), 高级工程师, 本科, 研究方向为车辆电气, kwang_up@163.com

  • 中图分类号: U270.11

Safety Analysis of Passing Through Twisted Track After Steel Spring Fracture of Metro Vehicle

  • 摘要: 针对地铁车辆转向架常见的一系钢弹簧断裂故障,首先从理论上分析了钢弹簧断裂后的参数变化,然后建立了地铁车辆的动力学仿真模型,考虑弹簧端部支撑圈断裂和弹簧中部有效圈断裂两种故障类型,对比分析了故障车辆和正常车辆通过扭曲轨道的各项安全性指标。研究结果表明:钢弹簧断裂对车辆垂向相关的安全性指标影响明显,主要是轮重减载率和脱轨系数,对轮轴横向力影响很小;此外,不同的钢弹簧断裂类型对车辆的安全性指标影响规律类似,但是数值不同;虽然钢弹簧断裂会恶化车辆的安全性指标,但是各项安全性指标均小于相应的限值,满足标准要求。
  • 图  1  地铁车辆钢弹簧断裂

    Figure  1.  Railcar steel spring fractures

    图  2  地铁车辆动力学仿真模型

    Figure  2.  The simulation model for railcar dynamics

    图  3  叠加三角坑的扭曲轨道

    Figure  3.  Distorted track with overlapped triangular pits

    图  4  弹簧有效圈断裂模拟力元

    Figure  4.  Finite element simulation of spring coil fractures

    图  5  车辆安全性指标弹簧端部支撑圈断裂

    Figure  5.  Vehicle safety indicator-end part support coil section of the spring fracture

    图  6  车辆安全性指标弹簧中部有效圈断裂

    Figure  6.  Vehicle safety indicator-effective coil section in the middle part of the spring fracture

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出版历程
  • 收稿日期:  2021-07-05
  • 刊出日期:  2023-07-25

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