| 轮轨热接触耦合效应的有限元分析 |
| |
| 引用本文： | 孙传喜,张军,王春艳.轮轨热接触耦合效应的有限元分析[J].交通运输工程学报,2011(1):25-30. |
| |
| 作者姓名： | 孙传喜 张军 王春艳 |
| |
| 作者单位： | 大连交通大学交通运输工程学院;西南交通大学牵引动力国家重点实验室; |
| |
| 基金项目： | 国家自然科学基金项目(50605003); 铁道部科技研究开发计划项目(2009J001-A); 牵引动力国家重点实验室自由探索自主研究课题(2009TPL_T03) |
| |
| 摘 要： | 针对制动热应力问题,运用有限元直接耦合法,对车轮热接触工况进行了模拟,采用耦合方程同时求解温度场和位移场,研究了纯机械载荷工况和热接触耦合工况下轮轨应力分布与变化规律,分析了车轮及钢轨表层材料和次表层材料的变形、温度与应力之间的关系.分析结果表明:由于热应力的影响,车轮表面以下0～1 mm的表层区域等效应力最大值增大了...
|
| 关 键 词： | 铁道工程 轮轨接触 热应力 有限元法 热接触耦合 |
Finite element analysis of wheel/rail thermo-contact coupling effect |
| |
| SUN Chuan-xi,ZHANG Jun,WANG Chun-yan.Finite element analysis of wheel/rail thermo-contact coupling effect[J].Journal of Traffic and Transportation Engineering,2011(1):25-30. |
| |
| Authors: | SUN Chuan-xi ZHANG Jun WANG Chun-yan |
| |
| Institution: | SUN Chuan-xi1,ZHANG Jun1,WANG Chun-yan1(1.School of Traffic and Transportation,Dalian Jiaotong University,Dalian 116028,Liaoning,China,2.Traction Power State Key Laboratory,Southwest Jiaotong University,Chengdu 610031,Sichuan,China) |
| |
| Abstract: | Aiming at the thermal stress caused by brake,a thermo-contact coupling calculation method was used to simulate the process of wheel/rail thermal contact based on finite element method.The temperature field and displacement field were synchronously solved by using coupling equations.The distributing and varying rules of the stresses for wheel and rail were studied under pure mechanical load condition and thermo-contact coupling condition.The relation among the displacements,temperatures and stresses of wheel... |
| |
| Keywords: | railway engineering wheel/rail contact thermal stress finite element method thermo-contact coupling |
| 本文献已被 CNKI 等数据库收录！ |
|
