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基于车轨耦合的地铁车轮多边形形成机理研究

施以旋 戴焕云 毛庆洲 石怀龙 汪群生

施以旋, 戴焕云, 毛庆洲, 石怀龙, 汪群生. 基于车轨耦合的地铁车轮多边形形成机理研究[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20220785
引用本文: 施以旋, 戴焕云, 毛庆洲, 石怀龙, 汪群生. 基于车轨耦合的地铁车轮多边形形成机理研究[J]. 西南交通大学学报. doi: 10.3969/j.issn.0258-2724.20220785
SHI Yixuan, DAI Huanyun, MAO Qingzhou, SHI Huailong, WANG Qunsheng. Formation Mechanism of Metro Wheel Polygonal Based on Vehicle-Track Coupling[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220785
Citation: SHI Yixuan, DAI Huanyun, MAO Qingzhou, SHI Huailong, WANG Qunsheng. Formation Mechanism of Metro Wheel Polygonal Based on Vehicle-Track Coupling[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220785

基于车轨耦合的地铁车轮多边形形成机理研究

doi: 10.3969/j.issn.0258-2724.20220785
基金项目: 国家自然科学基金(51975485,52272406,52102441);中国博士后科学基金(2023TQ0253)
详细信息
    作者简介:

    施以旋(1990—),男,博士研究生,研究方向为车辆系统动力学,E-mail:shiyixuan@my.swjtu.edu.cn

    通讯作者:

    戴焕云(1966—),男,研究员,研究方向为车辆系统动力学,E-mail:daihuanyun@163.com

  • 中图分类号: U270.1

Formation Mechanism of Metro Wheel Polygonal Based on Vehicle-Track Coupling

  • 摘要:

    车轮多边形磨耗会恶化轨道车辆振动环境,导致结构部件的共振疲劳失效,严重威胁行车安全. 为研究地铁车辆车轮多边形磨耗的形成机理,开展线路动态跟踪试验研究,建立车轨垂向耦合有限元模型和动力学模型,并进行轮轨长期磨耗迭代仿真分析. 研究结果表明:实测车辆发生了明显的7~9阶的车轮多边形磨耗,导致车辆出现50~70 Hz的强迫振动,频率与轮轨系统耦合振动P2力频率接近;通过车轮磨耗迭代仿真分析,确定了钢轨周期性接头焊缝不平顺引起的轮轨系统P2力共振是导致车轮7~9阶多边形磨耗的根本原因;对钢弹簧浮置板道床和梯形轨枕道床而言,长期轮轨P2力作用会分别引起8阶和15阶车轮多边形磨耗.

     

  • 图 1  地铁车辆车轮踏面

    Figure 1.  Wheel tread of metro vehicle

    图 2  车轮粗糙度测试结果

    Figure 2.  Test results of wheel roughness

    图 3  车轮粗糙度对比

    Figure 3.  Comparison of wheel roughness

    图 4  转向架动力学试验测点[7]

    Figure 4.  Dynamics test measuring point on bogie [7]

    图 5  轴箱加速度分析

    Figure 5.  Acceleration analysis of axlebox

    图 6  加速度幅频特性分析

    Figure 6.  Amplitude-frequency analysis of acceleration

    图 7  车辆-轨道垂向耦合模型

    Figure 7.  Vehicle-track vertical coupling model

    图 8  单轮轨耦合轮轨频响特性

    Figure 8.  Frequency response characteristics of single wheel-track coupling

    图 9  多轮轨接触相互作用(整车)

    Figure 9.  Multi wheel-track contact interaction (vehicle)

    图 10  车辆-轨道耦合有限元模型

    Figure 10.  Vehicle-track coupling finite element model

    图 11  车辆-轨道刚柔耦合动力学模型

    Figure 11.  Vehicle-track rigid-flexible coupling dynamics model

    图 12  车轮多边形磨耗预测模型

    Figure 12.  Prediction model of wheel polygonal wear

    图 13  钢轨焊缝不平顺

    Figure 13.  Irregularity of rail weld

    图 14  轮轨耦合作用分析模型

    Figure 14.  Analysis model of wheel-track coupling

    图 15  轮轨耦合状态下轮轨法向力频响特性

    Figure 15.  Frequency response characteristics of wheel-track normal force under wheel-track coupling

    图 16  轮轨法向力和横向蠕滑力

    Figure 16.  wheel-track normal force and lateral creep force

    图 17  车轨耦合作用下轨道模态的参数分析

    Figure 17.  Parameter analysis of track modal under the action of vehicle-track coupling

    图 18  车轮不平顺磨耗演变过程

    Figure 18.  Evolution of wheel irregular wear

    表  1  地铁车辆和轨道的主要参数

    Table  1.   Main parameters of metro vehicles and tracks

    参数符号数值
    定距之半/mlc7.85
    轴距之半/mlw1.25
    车体质量/kgMc24937
    构架质量/kgMf1830
    轮对质量/kgMw1231
    一系悬挂垂向刚度/(MN·m−1Kps1.5
    一系悬挂垂向阻尼/(kN·s·m−1Cps2
    浮置板道床扣件垂向刚度/(MN·m−1Ka50
    浮置板支撑刚度/(kN·s·m−1Ca20
    梯形轨枕扣件垂向刚度(MN·m−1Kb60
    梯形轨枕纵梁支撑刚度/(kN·s·m−1Cb20
    普通道床扣件垂向刚度/(MN·m−1Kc20
    浮置板长度/mLa24
    梯形轨枕纵梁长度/mLb6
    下载: 导出CSV
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  • 收稿日期:  2022-11-15
  • 修回日期:  2023-03-14
  • 网络出版日期:  2024-01-16

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