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曲线轨道上重载货车悬挂相对位移的仿真计算方法及应用

杨春雷 王开云

杨春雷, 王开云. 曲线轨道上重载货车悬挂相对位移的仿真计算方法及应用[J]. 西南交通大学学报, 2022, 57(5): 1008-1016. doi: 10.3969/j.issn.0258-2724.20210158
引用本文: 杨春雷, 王开云. 曲线轨道上重载货车悬挂相对位移的仿真计算方法及应用[J]. 西南交通大学学报, 2022, 57(5): 1008-1016. doi: 10.3969/j.issn.0258-2724.20210158
YANG Chunlei, WANG Kaiyun. Simulation Calculation Method and Application for Relative Displacement of Heavy Hall Freight Suspension on Curved Track[J]. Journal of Southwest Jiaotong University, 2022, 57(5): 1008-1016. doi: 10.3969/j.issn.0258-2724.20210158
Citation: YANG Chunlei, WANG Kaiyun. Simulation Calculation Method and Application for Relative Displacement of Heavy Hall Freight Suspension on Curved Track[J]. Journal of Southwest Jiaotong University, 2022, 57(5): 1008-1016. doi: 10.3969/j.issn.0258-2724.20210158

曲线轨道上重载货车悬挂相对位移的仿真计算方法及应用

doi: 10.3969/j.issn.0258-2724.20210158
基金项目: 国家自然科学基金( 51965016)
详细信息
    作者简介:

    杨春雷(1973—),男,教授级高级工程师,博士,研究方向为铁路车辆-轨道耦合系统动力学,E-mail:2015017@hbmzu.edu.cn

  • 中图分类号: U272.2

Simulation Calculation Method and Application for Relative Displacement of Heavy Hall Freight Suspension on Curved Track

  • 摘要:

    为准确求解曲线轨道上重载货车悬挂的相对位移,首先,建立曲线轨道数学模型,推导出曲线外轨超高、顺坡角、侧滚角和中心角随线路长度的变化公式,再根据车辆各刚体部件进出曲线的时间和所处曲线位置差异,编程计算悬挂点刚体间的超高及转角差;其次,以刚体质心为坐标原点建立本体坐标系,分别给出悬挂点在两刚体本体坐标系中的坐标表达式,通过坐标变换法将本体坐标转换到同一坐标系下,计算悬挂点瞬态相对位移;最后,结合车辆曲线动力学仿真程序计算,即可求出车辆曲线通过时各悬挂点的动态相对位移. 计算结果表明:车辆悬挂相对位移是车辆参数和曲线轨道参数综合作用的结果,当单独不计线路侧滚角差、顺坡角差、中心角差时,对应悬挂相对位移的最大偏差率可达42.85%、24.03%、71.42%;利用坐标变换结合动力学仿真计算的方法可全面考虑车辆和轨道参数,求解车辆悬挂相对位移更为准确.

     

  • 图 1  典型曲线轨道示意

    Figure 1.  Typical curve track schematic

    图 2  重载货车各刚体部件在曲线轨道上的位置关系

    Figure 2.  Position relationships of the freight car rigid bodies on a curved track

    图 3  车辆系统悬挂点刚体间的超高差

    Figure 3.  Superelevation height differences between the rigid bodies of vehicle system suspension points

    图 4  车辆系统悬挂点刚体间的侧滚角差

    Figure 4.  Rolling angle differences between the rigid bodies of vehicle system suspension points

    图 5  车辆系统悬挂点刚体间的顺坡角差

    Figure 5.  Slope angle differences between the rigid bodies of vehicle system suspension points

    图 6  车辆系统悬挂点刚体间的中心角差

    Figure 6.  Yawing angle differences between the rigid bodies of vehicle system suspension points

    图 7  悬挂点刚体间的相对位移

    Figure 7.  Relative displacements between rigid bodies of the suspension points

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出版历程
  • 收稿日期:  2021-03-02
  • 修回日期:  2021-06-23
  • 网络出版日期:  2022-07-18
  • 刊出日期:  2021-07-07

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