| 重载铁路车轮磨耗和滚动接触疲劳研究 |
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| 引用本文： | 李霞,温泽峰,金学松.重载铁路车轮磨耗和滚动接触疲劳研究[J].铁道学报,2011,33(3). |
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| 作者姓名： | 李霞 温泽峰 金学松 |
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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： | 四川省青年科技基金，教育部"新世纪优秀人才支持计划"，高等学交博士学科点专项科研基金 |
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| 摘 要： | 基于车辆动力学、非Hertz轮轨滚动接触理论和Archard磨损模型建立车轮磨耗预测模型.利用该模型和安定图对重载铁路车轮磨耗和滚动接触疲劳性能进行定性分析.在数值计算中,主要考察轴重为25 t和30 t货车的车轮硬度对车轮磨耗和滚动接触疲劳性能的影响.研究表明,轮轨间高应力水平的出现频次、车轮磨耗和疲劳破坏的几率随着轴重的增加而增大;随着硬度的增加,车轮磨耗和疲劳破坏现象得到改善.结合国外重载铁路轮轨匹配经验,建议轴重为30 t车轮的硬度大于340 HB.
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| 关 键 词： | 重载铁路 车轮 轴重 磨耗 疲劳 硬度 |
Investigation into Wheel Wear and Fatigue of Heavy-haul Railways |
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| LI Xia,WEN Ze-feng,JIN Xue-song.Investigation into Wheel Wear and Fatigue of Heavy-haul Railways[J].Journal of the China railway Society,2011,33(3). |
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| Authors: | LI Xia WEN Ze-feng JIN Xue-song |
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| Institution: | LI Xia,WEN Ze-feng,JIN Xue-song(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The wheel wear prediction model was built,in which the vehicle dynamics model,the non-Hertzian rolling contact theory of wheel and rail systems and the Archard wheel material wear model were combined.The wear and rolling contact fatigue of the heavy-haul railway wheel were analyzed qualitatively by using the wheel wear prediction model and shakedown diagram.The influence of hardness on wheel wear and fatigue were investigated under 25 t and 30 t axle loads.The results indicate as follows: The occurrence fre... |
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| Keywords: | heavy-haul railway wheel axle load wear fatigue hardness |
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