| 考虑表面微观粗糙度的轮轨接触弹塑性分析 |
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| 引用本文： | 江晓禹,金学松. 考虑表面微观粗糙度的轮轨接触弹塑性分析[J]. 西南交通大学学报, 2001, 36(6): 588-590 |
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| 作者姓名： | 江晓禹 金学松 |
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| 作者单位： | 西南交通大学应用力学与工程系,四川成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(5993510)和国家重点实验室开放基金资助项目 |
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| 摘 要： | 采用接触单元方法，结合初应力法，采用测量获得的表面微观粗糙度，对轮轨弹塑性接触问题进行了研究，获得了轮轨的表面接触压力分布等结果。结果表明，轮轨表面微观粗糙度度使得接触区的峰值接触压力大大高于平整接触表面的接触压力，会造成轮轨表面出现塑性变形。对含表面粗糙度的轮轨接触问题，进行弹塑性分析是必要的。
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| 关 键 词： | 微观粗糙度 轮轨接触 接触压力 弹塑性分析 塑性变形 接触单元方法 初应力法 |
| 文章编号： | 0258-2724(2001)06-0588-03 |
Elastic-Plastic Analysis of Contact Problems of Wheel/Rail with Surface Micro-Roughness |
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| JIANG Xiao yu,JIN Xue song. Elastic-Plastic Analysis of Contact Problems of Wheel/Rail with Surface Micro-Roughness[J]. Journal of Southwest Jiaotong University, 2001, 36(6): 588-590 |
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| Authors: | JIANG Xiao yu JIN Xue song |
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| Abstract: | The contact element method and original stress method were used to analyze the elastic plastic contact problem of wheel/rail with measured surface micro roughness. The distribution of surface contact pressure on the rail was obtained. The results show that the peak value of contact pressure on the contact area for the surface with micro roughness was much larger than that for smooth surfaces, and the rough surface went into plasticity. It is therefore necessary to conduct elastic plastic analysis for wheel/rail contact problems when micro roughness is considered. |
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| Keywords: | contact problem elastic plastic micro roughness wheel/rail contact |
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