| 非椭圆接触面下钢轨三维弹塑性应力分析 |
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| 引用本文： | 陆辉,孙国瑛.非椭圆接触面下钢轨三维弹塑性应力分析[J].西南交通大学学报,2000,35(4):340-343. |
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| 作者姓名： | 陆辉 孙国瑛 |
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| 作者单位： | 1. 同济大学道路与交通工程系,上海,200092
2. 西南交通大学土木工程学院,四川,成都,610031 |
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| 摘 要： | 轮轨接触应力的计算是轮轨关系的一个重要课题。建立了一个任意形状钢轨和车轮在任意点接触时，接触面形状和接触面力的计算模型，然后把计算出的接触面力作为外载施加到三维弹塑性有限元模型中，进行轨头中部应力的计算，从而构成了一个完整的计算方法。最后的计算结果表明，该方法适用于具有复杂外形特征的轮轨接触应力的计算。
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| 关 键 词： | 接触应力 轮轨关系 有限元法 接触面形状 |
| 文章编号： | 0258-2724(2000)04-0340-04 |
Analysis of Three Dimensional Elastic-Plastic Stresses of Rail under Non-Ellipse Contact Area |
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| LU Hui,SUN Guo-ying.Analysis of Three Dimensional Elastic-Plastic Stresses of Rail under Non-Ellipse Contact Area[J].Journal of Southwest Jiaotong University,2000,35(4):340-343. |
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| Authors: | LU Hui SUN Guo-ying |
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| Abstract: | The calculation of wheel/rail contact stresses is an important project in wheel/rail relations. In this paper, a model for wheel/rail with arbitrary profiles contacting in an arbitrary point is built to calculate contact area and contact surface stresses. Then by taking the calculated surface stresses as applied load, the stresses inside the railhead are calculated through the three dimensional elastic plastic finite element method. Final calculations show that the method presented in this paper is applicable to the calculation of wheel/rail contact stresses characterized by complex profiles. |
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| Keywords: | contact stress wheel/rail relation finite element methods |
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