| 机车车辆轮轨接触问题的数值模拟 |
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| 引用本文： | 张军,仲政.机车车辆轮轨接触问题的数值模拟[J].同济大学学报(自然科学版),2006,34(9):1231-1236. |
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| 作者姓名： | 张军 仲政 |
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| 作者单位： | 1. 同济大学,航空航天与力学学院,上海,200092;大连交通大学,交通运输工程学院,辽宁,大连,116028
2. 同济大学,航空航天与力学学院,上海,200092 |
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| 摘 要： | 按照机车、车辆车轮与标准轨道的实际几何关系建立了三维有限元模型，并采用有限元参数二次规划法求解轮轨弹塑性接触问题．通过弹塑性接触计算，得到了大量的轮轨接触力、接触状态和轮轨应力的数据，根据计算结果分析比较了机车轮轨接触和车辆轮轨接触的区别，对轮缘贴靠钢轨形成两点接触时的接触情况进行了初步分析.
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| 关 键 词： | 轮轨接触 接触力 两点接触 有限元法 二次规划法 |
| 文章编号： | 0253-374X（2006）09-1231-06 |
| 收稿时间： | 12 20 2004 12:00AM |
| 修稿时间： | 2004-12-20 |
Numerical Analysis of Locomotive and Vehicle Wheel-Rail Contact Problems |
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| ZHANG Jun,ZHONG Zheng.Numerical Analysis of Locomotive and Vehicle Wheel-Rail Contact Problems[J].Journal of Tongji University(Natural Science),2006,34(9):1231-1236. |
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| Authors: | ZHANG Jun ZHONG Zheng |
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| Institution: | 1,School of Aerospace Engineering and Applied Mechanics, Tongii University, Shanghai 200092, China; 2. School of Transportation Engineering,Dalian Jiaotong University,Dalian 116028, China |
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| Abstract: | A 3D finited element method contact model of wheelset and track is constructed, in which locomotive and vehicle wheelset are respectively considered. The wheel/rail 3D elastic-plastic contact problem is analyzed by using the parametric finite element method and quadratic programming method. Results, such as the wheel/rail contact force, contact status and wheel/rail stress distribution, are obtained. Difference in wheel-rail contact between locomotive and vehicle is discussed. The problem of two-point contact resulting from wheel flange close to rail is analyzed. |
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| Keywords: | wheel/rail contact contact force two-point contact finited element method quadratic programming method |
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