| 单轮对纵向动力学数值分析 |
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| 引用本文： | 严晓明,罗世辉,马卫华.单轮对纵向动力学数值分析[J].电力机车与城轨车辆,2005,28(6):22-24,27. |
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| 作者姓名： | 严晓明 罗世辉 马卫华 |
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| 作者单位： | 西南交通大学,牵引动力国家重点实验室,四川,成都,610031 |
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| 摘 要： | 轮对的纵向振动会影响机车车辆动力学性能,而且是轮轨非正常磨耗的一个重要因素。但是机车车辆动力学研究中,对轮对的纵向动力学特点的研究往往被忽略。文章建立了一个包括x方向的运动、轮对的摇头、点头扰动和轮对的横移的4自由度单轮对计算模型,并对该模型进行数值仿真,研究其纵向振动现象。最后讨论了系统参数对纵向动力学行为的影响,认为一系纵向刚度、轴重和黏着系数对纵向振动影响很大。
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| 关 键 词： | 轮对 纵向振动 数值仿真 动力学 参数 影响 |
| 文章编号： | 1672-1187（2005）06-0022-03 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005年1月6日 |
Numerical analysis of longitudinal dynamics of single wheelset |
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| YAN Xiao-ming,LUO Shi-hui,MA Wei-hua.Numerical analysis of longitudinal dynamics of single wheelset[J].Electric Locomotives & Mass Transit Vehicles,2005,28(6):22-24,27. |
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| Authors: | YAN Xiao-ming LUO Shi-hui MA Wei-hua |
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| Abstract: | The longitudinal vibration of wheelset effects the dynamics performance of railway vehicle, and it maybe cause abnormal wheel/rail contact fatigue problem. But the longitudinal dynamics behavior of wheelset is often neglected while carrying out railway vehicle dynamics analysis. The dynamics calculation model for single wheelset including longitudinal displacement, yaw, pitch and lateral displacement is set up in this paper. Simulation of this model is done, and the longitudinal vibration performance is investigated. The effect of the system parameters is discussed,the longitudinal vibration is influenced highly by primary longitudinal stiffness, axle-load and coefficient of friction. |
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| Keywords: | wheelset longitudinal vibration numerical simulation dynamics parameters influence |
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