车轮型面优化的研究进展  

State of Arts of Research on Railway Wheel Profile Optimization

作　　者：李立[1] 崔大宾[1] 金学松[2] 

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《西南交通大学学报》2009年第1期13-19,共7页Journal of Southwest Jiaotong University

基　　金：国家973计划资助项目(2007CB714702);国家自然科学基金资助项目(50675183);铁道部科技研究开发计划资助项目(Z2006-049)

摘　　要：论述了轮轨型面匹配对车辆/轨道动态行为和轮轨系统磨损接触疲劳的影响.介绍了铁路车轮型面优化设计的有关理论、技术和结果,分析、比较了各种方法在车轮型面优化中的应用及其存在的问题,并给出了相应的改进措施.结合车轮踏面的现有优化设计方法,提出了一种可以综合考虑接触应力、磨耗指数和临界速度等多个性能指标的车轮踏面优化方法,指出了优化过程中数学模型建立困难和求解速度慢等问题,并提出了相应的改进措施.The effect of railway wheel/rail profiles match on the dynamical behavior of railway vehicle/track and the wear and rolling contact fatigue of wheels/rails were described. The theories, techniques and results of railway wheel profile optimization were presented, their advantages and disadvantages were discussed, and their improvements were given. A feasible optimization method for railway wheel profiles was put forward. This method can consider multiple performance indexes, such as the contact stress, the wear index and the critical speed. In addition, the potential difficulty in mathematical modeling and the problem of low computing speed were pointed out, and their improved measures were given.

关 键 词：轮轨几何型面 优化 轮轨接触 动态行为 

分 类 号：U260.331.1[机械工程—车辆工程]