不同制动工况下地铁车轮踏面磨耗研究  

Research on tread wear of metro wheel under different braking conditions

作　　者：朱爱华[1] 张财胜 杨建伟[1] 白杨 李安琰 ZHU Aihua;ZHANG Caisheng;YANG Jianwei;BAI Yang;LI Anyan(Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles(Beijing University of Civil Engineering and Architecture),Beijing 100044,China)

机构地区：[1]城市轨道交通车辆服役性能保障北京市重点实验室(北京建筑大学),北京100044

出　　处：《中国科技论文》2024年第6期695-702,714,共9页China Sciencepaper

基　　金：国家自然科学基金资助项目(52272385);北京市自然科学基金资助项目(L211007)。

摘　　要：为研究不同制动方式对地铁车轮踏面磨耗的影响规律,联合ANSYS和SIMPACK软件,建立了车轮-闸瓦热机耦合有限元模型和含有柔性轮对的车辆动力学模型,同时考虑不同制动初速度和制动减速度对车轮踏面温度、踏面硬度、踏面与闸瓦间接触应力及制动距离的影响,分析了不同制动方式下车轮-闸瓦磨耗、车轮-钢轨磨耗和踏面总磨耗的变化规律。结果表明:踏面磨耗随着制动初速度的增大而增大;随着制动减速度的增大,车轮-闸瓦磨耗和总磨耗增大,车轮-钢轨磨耗减小;制动时踏面总磨耗主要受车轮-闸瓦磨耗影响。In order to study the influences of braking methods on the tread wear of subway wheel,a wheel-shoe thermo-mechanical coupling finite element model and a vehicle dynamics model containing flexible wheel pairs were established respectively by combination of ANSYS and SIMPACK softwares.At the same time,the effects of different braking initial speed and braking deceleration on wheel tread temperature,tread hardness,contact stress between tread and shoe,and braking distance are considered,and the patterns of wheel-shoe wear,wheel-rail wear and total tread wear under different braking modes are analyzed.The results show that the tread wear increases with the increase of braking initial speed.With the increase of braking deceleration,the wheel-shoe wear and total wear increase while the wheel-rail wear decreases.The total tread wear is mainly affected by the wheel-shoe wear during braking.

关 键 词：地铁车轮踏面磨耗 闸瓦制动 制动减速度 热机耦合有限元模型 Archard修正模型 

分 类 号：TH117.1[机械工程—机械设计及理论]