| 车轮踏面外形及轮径差对车辆动力学性能的影响 |
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| 引用本文： | 李艳,张卫华,池茂儒,周文祥.车轮踏面外形及轮径差对车辆动力学性能的影响[J].铁道学报,2010,32(1). |
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| 作者姓名： | 李艳 张卫华 池茂儒 周文祥 |
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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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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 车轮踏面磨耗导致车轮外形改变,使其滚动圆直径产生偏差,对车辆系统的动力学特性影响较大.为了对其影响程度进行表征,依据某动车组车型建立多体系统动力学模型,分析不同磨耗程度下的稳定性、平稳性及安全性指标,研究踏面凹形磨耗对列车运行的影响.动力学仿真分析发现,随着车轮外形和轮径变化的加剧,产生轮轨接触的非对称现象,导致车辆稳定性受到极大影响,平稳性变差.因此,为了保证车辆运行的稳定性及安全性,应设法避免使用外形严重磨耗的车轮.
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| 关 键 词： | 踏面 轮径 稳定性 平稳性 |
Influence of Wheel Tread Profile and Rolling Diameter Difference on Dynamic Performance of Vehicles |
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| LI Yan,ZHANG Wei-hua,CHI Mao-ru,ZHOU Wen-xiang.Influence of Wheel Tread Profile and Rolling Diameter Difference on Dynamic Performance of Vehicles[J].Journal of the China railway Society,2010,32(1). |
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| Authors: | LI Yan ZHANG Wei-hua CHI Mao-ru ZHOU Wen-xiang |
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| Institution: | LI Yan,ZHANG Wei-hua,CHI Mao-ru,ZHOU Wen-xiang(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Wheel tread wear leads to change of the wheel profile and rolling diameter,which influences the dynamic behaviors of railway vehicles seriously.To characterize the extent of influence,a dynamic model of a certain EMU is built.Researches on the influence of hollow-worn wheels have been done by analyzing the stability,ride quality and safety index under different wear conditions.The simulation results are obtained: Along with intensification of changing of wheel profiles and rolling diameters,unsymmetrical wh... |
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| Keywords: | tread wheel diameter stability smooth riding property |
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