列车在平直道和上坡道运行时轮轨间的粘着特性  

Adhesion Characteristics of Wheel/Rail during Train Running on Straight and Uphill Railways

作　　者：王海洋[1] 申鹏[1,2] 刘启跃[1] 郭俊[1] 

机构地区：[1]西南交通大学摩擦学研究所,成都610031 [2]北京二七轨道交通装备有限责任公司,北京100072

出　　处：《机械工程材料》2013年第5期88-91,96,共5页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(50905148);国家重点基础研究发展计划项目(2007CB714702);国家重点实验室自主研究课题项目(2008TPL_Z09)

摘　　要：利用JD-1型轮轨模拟试验机模拟了列车在平直道和上坡道运行时,在干态、水介质、污油介质工况下轮轨间的粘着特性。结果表明:在干态、水介质和污油介质工况下,在上坡道运行时的轮轨间的粘着系数与平直道运行时的相比分别约下降了46%,50%和24%;在平直道运行时,污油介质工况下模拟轨表面的磨痕最窄、磨损最小,水介质工况下的次之,干态工况下的磨痕最宽、磨损最大;在上坡道运行时,水介质工况下的磨痕最窄、磨损最小,干态工况下的次之,污油介质工况下的磨痕最宽,磨损最大。The train running on straight and uphill railways was simulated by JD-1wheel / rail simulation tester, and the adhesive characteristics of wheel/rail under dry, water and waste oil conditions were studied. The results show that comparing with straight railway, the wheel/rail adhesion coefficient on uphill railway dropped approximately 47% under dry condition, dropped approximately 50%nder water condition and dropped approximately 24% under waste oil condition. During running on straight railway, the wear scar on simulated rail was the narrowest and the wear was the minimum under waste oil condition, the followed under water condition, and the greatest under dry condition.During running on uphillrailway, the wear scar on simulated rail was the narrowest and the wear was the minimum under water medium condition, the followed under dry conditions and the greatest under waste oil condition.

关 键 词：上坡道 粘着系数 磨痕 铁铬 钢轨 

分 类 号：U211.5[交通运输工程—道路与铁道工程]