| 改善轮轨接触状态的车轮型面几何设计方法 |
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| 引用本文： | 张剑, 王玉艳, 金学松, 崔大宾. 改善轮轨接触状态的车轮型面几何设计方法[J]. 交通运输工程学报, 2011, 11(1): 36-42. doi: 10.19818/j.cnki.1671-1637.2011.01.007 |
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| 作者姓名： | 张剑 王玉艳 金学松 崔大宾 |
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| 作者单位： | 1.西南交通大学 牵引动力国家重点实验室，四川 成都 610031;;2.大连交通大学 交通运输工程学院，辽宁 大连 116028 |
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| 基金项目： | 国家自然科学基金项目(50875221,50821063); 国家973计划项目(2007CB714702) |
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| 摘 要： | 改进了车轮型面设计方法, 给出了设计方法的解析数学表达式, 将轮对等效锥度与轮轨型面接触状态联系起来, 对设计实例进行了轮轨几何接触、非赫兹滚动接触和车辆动力学性能分析。研究结果表明: 轮轨接触点能够均匀分散分布; 由于接触斑面积增大约23%, 最大接触压力降低约21%, 使轮轨滚动接触应力降低了约20%;装备实例型面的车辆临界速度与LMA型面几乎相同, 由于轮对等效锥度略有提高使其曲线通过性能略好于后者。可见, 该方法可以改善轮轨接触状态, 有利于轮轨型面均匀磨耗及缓解轮轨滚动接触疲劳。
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| 关 键 词： | 车辆工程 车轮型面设计 轮轨接触状态 轮对等效锥度 轮轨关系 |
| 收稿时间： | 2010-08-18 |
Geometric design method of wheel profile for improving wheel and rail contact status |
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| ZHANG Jian, WANG Yu-yan, JIN Xue-song, CUI Da-bin. Geometric design method of wheel profile for improving wheel and rail contact status[J]. Journal of Traffic and Transportation Engineering, 2011, 11(1): 36-42. doi: 10.19818/j.cnki.1671-1637.2011.01.007 |
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| Authors: | ZHANG Jian WANG Yu-yan JIN Xue-song CUI Da-bin |
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| Affiliation: | 1. Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;;2. School of Traffic and Transportation Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning, China |
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| Abstract: | The geometric design method of wheel profile was improved,its analytic mathematic expressions were presented,which connected wheelset equivalent conicity and wheel and rail contact status.The wheel and rail contact geometry,non-Hertzian rolling contact and vehicle dynamics performance of design example were calculated.Analysis result indicates that wheel and rail geometric contact points become homodisperse.Due to contact patch area increases by about 23%,the maximum contact pressure decreases by about 21%,... |
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| Keywords: | vehicle engineering wheel profile design wheel and rail contact status wheelset equivalent conicity wheel and rail relationship |
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