| 基于轴对称模型的货车车轮结构疲劳强度分析 |
| |
| 引用本文： | 徐传来, 米彩盈, 李芾. 基于轴对称模型的货车车轮结构疲劳强度分析[J]. 交通运输工程学报, 2008, 8(6): 20-23. |
| |
| 作者姓名： | 徐传来 米彩盈 李芾 |
| |
| 作者单位： | 西南交通大学 机械工程学院, 四川 成都 61003 |
| |
| 基金项目： | 国家自然科学创新研究群体基金项目 |
| |
| 摘 要： | 为了分析铁路货车车轮的疲劳强度, 建立了车轮轴对称模型, 根据国际铁路联盟标准UIC510-5/2003规定的计算载荷和载荷工况, 计算了车轮的疲劳强度, 用Goodman曲线对疲劳强度进行了评定。计算结果表明: 在紧急制动的热载荷作用下, 车轮辐板区域在制动70s时产生最大von_Mises应力; 在紧急制动的热载荷与机械载荷联合作用下, 车轮辐板区域在制动43s时产生最大von_Mises应力; 在曲线紧急制动载荷工况的计算载荷作用下, 车轮辐板区域的von_Mises应力最大; 车轮辐板疲劳强度满足要求。
|
| 关 键 词： | 铁道车辆 车轮 轴对称结构 疲劳强度 非轴对称载荷 耦合场 应力 |
| 收稿时间： | 2008-07-23 |
Structural fatigue strength analysis of wheel for freight car base on axisymmetric model |
| |
| XU Chuan-lai, MI Cai-ying, LI Fu. Structural fatigue strength analysis of wheel for freight car base on axisymmetric model[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6): 20-23. |
| |
| Authors: | XU Chuan-lai MI Cai-ying LI Fu |
| |
| Affiliation: | School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China |
| |
| Abstract: | In order to analyze the fatigue strength of wheel for railway freight car,an axisymmetric model was set up,the strength was computed according to the calculation load and load conditions of international railway union standards UIC510-5/2003,and the strength was assessed by using Goodman curve. Calculation result shows the maximum von_Mises stress appears on the spoke under the thermal load of emergency braking when the braking time is 70 s,the maximum von_Mises stress appears on the spoke under the thermal load and the mechanical load of emergency braking when the braking time is 43 s,the maximum von_Mises stress appears on the spoke under the calculation load of curvilinear emergency braking,and the fatigue strength of the spoke meets the relative requirement. 7 figs,12 refs. |
| |
| Keywords: | railway vehicle wheel axisymmetric structure fatigue strength non-axisymmetric load coupled field stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《交通运输工程学报》浏览原始摘要信息 |
|
点击此处可从《交通运输工程学报》下载全文 |
|
