| 重载货车车轮踏面优化研究 |
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| 引用本文： | 崔大宾,李立,金学松.重载货车车轮踏面优化研究[J].铁道学报,2011,33(5). |
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| 作者姓名： | 崔大宾 李立 金学松 |
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| 作者单位： | 1. 西南交通大学机械工程学院,四川成都,610031
2. 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： | 国家重点基础研究发展计划(973计划)，铁道部科技研究开发计划，国家自然科学基金资助项目，高等学校博士学科点专项科研基金 |
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| 摘 要： | 对近期开发的基于法向间隙的车轮踏面优化方法进行改进,根据三维非赫兹滚动接触理论对轮轨间隙求解范围进行计算,使所求解的轮轨间隙具有实际的物理意义.针对我国重载货车车轮圆周磨耗严重的问题,对现有重载货车车轮踏面进行优化.利用车辆-轨道耦合动力学理论及三维弹性体非赫兹滚动接触理论对优化前后车轮踏面的静态接触性能及动态接触性能进行分析.结果表明:优化后轮轨界面之间可达到较好的匹配,且合理选择踏面不同区域的权数可同时保证车辆直线运行与曲线通过时的轮轨接触应力较小,从而达到有效降低轮轨磨耗的目的.
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| 关 键 词： | 车轮踏面 优化 动力学 重载 |
Study on Optimization of Wheel Profiles on Heavy Haul Freight Car |
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| CUI Da-bin,LI Li,JIN Xue-song.Study on Optimization of Wheel Profiles on Heavy Haul Freight Car[J].Journal of the China railway Society,2011,33(5). |
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| Authors: | CUI Da-bin LI Li JIN Xue-song |
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| Institution: | CUI Da-bin1,LI Li1,JIN Xue-song2(1.School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China,2.State Key Laboratory of Traction Power,China) |
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| Abstract: | Improvement is made to the wheel profile optimization method put forward recently based on the normal gap between the wheel and the rail.The calculation scope of the wheel/rail gap is computed based on the theory of three-dimensional elastic bodies rolling contact with non-Hertzian,so the wheel/rail gap calculated with this method is of practical significance.As the circular wear of wheel treads of heavy haul freight cars is serious,the improved method is used to optimize the wheel profile of heavy haul fre... |
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| Keywords: | wheel profile optimization dynamics heavy haul |
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