基于摩擦因数预测模型优选湿热地区高速列车车轮型面  

High-speed Train Wheel Profile Optimization Based on Friction Coefficient Prediction Model in Hot and Humid Region

作　　者：肖乾 杨逸航[1] 郑继峰 昌超 

机构地区：[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]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《润滑与密封》2017年第12期16-22,共7页Lubrication Engineering

基　　金：国家自然科学基金项目(51565013);牵引动力国家重点实验室开放课题(TPL1407)

摘　　要：基于考虑温湿度影响的摩擦因数预测模型及mixed Lagrangian/Eulerian方法建立高速轮轨稳态滚动接触有限元模型,在不考虑横移及冲角的条件下,对比分析XP55、S1002以及LMa车轮型面分别与CHN60轨相接触时的接触特性及磨耗特性,优选出一种最适合湿热地区高速列车车轮型面。结果表明:XP55车轮型面牵引性能、轮对恢复对中性能最好,但是耐磨性及临界速度均最差;S1002车轮型面与CHN60轨匹配性能最差,同时牵引性能、轮对恢复对中性能最差,易发生失稳,但耐磨性及临界速度均最好;LMa车轮型面接触特性及磨耗特性均介于两者之间,相对更加适合湿热地区高速列车。The high-speed wheel/rail steady rolling contact finite element model was established by using the mixed Eulerian/Lagrangian method and the friction coefficient prediction model considering the influence of temperature and humidity.Without considering transverse and angle of attack, the contact characteristics and wear characteristics of XP55, S1002 ,and LMa wheel profile when contacted with CHN60 rail were compared and analyzed.A high-speed train wheel profile which is most suitable for hot and humid regions was selected.Results show that XP55 wheel profile has the best profile traction performance and wheels recovery performance ,but the poorest wear resistance and critical speed.S1002 wheel profile has the best wear resistance and critical speed,but the poorest matching performance with CHN60 rail, the worst traction performance and wheels recovery performance.The contact characteristics and wear characteristics of XP55 between XP55 wheel profile and S1002 wheel profile, which is more suitable for the wheel profile of high speed train under the hot and humid regions.

关 键 词：湿热地区 高速列车 轮轨磨耗 有限元模型 温湿度 

分 类 号：U211.5[交通运输工程—道路与铁道工程] TH117.1[机械工程—机械设计及理论]