基于横向蠕滑特性的轮轨黏着试验研究  

Adhesion Test of Wheel⁃Rail Based on Lateral Creep Characteristics

作　　者：胡雅婷 张淑华[2] 尧辉明[1] HU Yating;ZHANG Shuhua;YAO Huiming(School of Urban Rail Transit,Shanghai University of Engineering Science,Shanghai 201620,China;Department of Automotive Engineering,Chengde Petroleum College,Chengde Hebei 067000,China)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620 [2]承德石油高等专科学校汽车工程系,河北承德067000

出　　处：《润滑与密封》2020年第9期78-82,112,共6页Lubrication Engineering

基　　金：国家重点研发计划项目(2016YFC0802500);上海市科委地方院校能力建设项目(15590501400).

摘　　要：为提高列车的横向稳定性,研究了轮轨横向黏着特性。利用自主设计加工的横向轮轨滚动振动试验台,在不同介质工况下进行轮轨横向黏着特性试验,分析水、油介质条件以及轴重力、速度对轮轨横向黏着特性的影响。结果表明:相比干态条件,水、油介质条件下会使轮轨横向黏着系数降低;不同介质工况下随着轴重力的增加,横向黏着系数均增加;在干态与水介质下横向黏着系数随着速度的增大而降低,而在油介质下横向黏着系数随着速度的增大而增大,但变化幅度不是很大;在轮轨接触面撒砂能提高横向黏着系数,但对轮轨损伤有一定的影响。In order to improve the lateral stability of the train,the horizontal adhesion characteristics of the wheel and rail were studied.The experiments on the lateral adhesion characteristics of wheel and rail were carried out under different media conditions by using the transverse wheel⁃rail rolling vibration test bench,and the effects of various axle load and speed on the lateral adhesion characteristics of wheel and rail were analyzed.The results show that the lateral adhesion coefficient of the wheel and rail is reduced under the conditions of water and oil medium compared with dry state condition.The lateral adhesion coefficient is increased with the increase of axial load under different media conditions.The lateral ad⁃hesion coefficient is decreased with the increase of the speed under the dry state and water medium,while it is increased with the increase of the speed under the oil medium,but the change range is not very large.The lateral adhesion coefficient is increased when sanding on the wheel⁃rail contact surface,but it has a certain impact on wheel and rail damage.

关 键 词：横向蠕滑特性 黏着系数 黏着特性 轮轨 

分 类 号：U211[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]