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| 大功率机车轮轨接触应力计算分析 | |
| 引用本文： | 周新建,卢勇,王成国,肖乾,张怀.大功率机车轮轨接触应力计算分析[J].铁道机车车辆,2011,31(1):22-26. |
| 作者姓名： | 周新建 卢勇 王成国 肖乾 张怀 |
| 作者单位： | 1. 华东交通大学载运工具与装备教育部重点实验室,江西南昌,330013 2. 中国铁道科学研究院铁道科学技术研究发展中心,北京,100081 3. 华东交通大学载运工具与装备教育部重点实验室,江西南昌,330013;中国铁道科学研究院铁道科学技术研究发展中心,北京,100081 4. 中国科学院研究生院计算地球动力学实验室,北京,100049 |
| 摘 要： | 轮轨关系是大功率机车车轮国产化的重要研究内容。轮轨接触应力分析是轮轨接触问题的基础。大功率机车轮对在运行过程中相对钢轨断面产生不同横移,直接影响轮轨接触应力。应用轮轨非线性接触理论及并行计算技术,构建大功率机车轮轨接触应力分析的大规模有限元模型,并在中国科学院研究生院计算地球动力学实验室的网络集群并行计算环境下完成有限元计算,研究了轮对横移量对大功率机车轮轨接触应力影响。计算结果表明,轮对不同横移时,车轮踏面内均出现塑性变形,塑性变形从车轮踏面内约6 mm处延伸至接触表面。轮轨接触斑的横向长度与接触面积随轮对横移量的变化有着相同的变化规律。随着横移量的改变,多数情况下的轮轨接触斑形态与Hertz理论的椭圆假设有较大差别。 |
| 关 键 词： | 大功率机车 轮轨接触应力 有限元法 接触分析 并行计算 |
Calculation and Analysis for High-Power Locomotive Wheel/Rail Contact Stress |
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| ZHOU Xin-jian,LU Yong,WANG Cheng-guo,XIAO Qian,ZHANG Huai.Calculation and Analysis for High-Power Locomotive Wheel/Rail Contact Stress[J].Railway Locomotive & Car,2011,31(1):22-26. | |
| Authors: | ZHOU Xin-jian LU Yong WANG Cheng-guo XIAO Qian ZHANG Huai |
| Institution: | ZHOU Xin-jian1,LU Yong1,WANG Cheng-guo2,XIAO Qian1,2,ZHANG Huai3(1 Key Laboratory of Ministry of Education for Conveyance and Equipment,East China Jiaotong University,Nanchang 330013 Jiangxi,China,2 Railway Science and Technology Research and Development Center,China Academy of Railway Sciences,Beijing 100081,3 Laboratory of Computational Geodynamics,Graduate University of the Chinese Academy of Sciences,Beijing 100049,China) |
| Abstract: | The study of relationship between wheel and rail is important for the research of localization of high-power locomotive wheels.Wheel/rail contact stress analysis is the base of wheel-rail contact problem.When wheelset moves,it has different lateral displacement respect to the rail section,that will affect the wheel-rail contact stress directly.Based on nonlinear theory of wheel/rail contact and parallel computing technologies,the large-scale finite element model for wheel/rail contact stress analysis is est... |
| Keywords: | high-power locomotive wheel/rail contact stress finite element method contact analysis parallel computing |
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