车轮踏面剥离试验研究  

Test and Research on Wheel Tread Peeling

作　　者：郭俊[1] 王文健[1] 张伟[1] 刘启跃[1] 

机构地区：[1]西南交通大学摩擦学研究所,四川成都610031

出　　处：《铁道车辆》2006年第4期1-4,共4页Rolling Stock

基　　金：国家自然科学基金项目(50323003);四川省应用基础基金项目(05JY029-006-2)

摘　　要：剥离是车轮踏面失效的主要类型。车轮剥离一般分为2种类型,一类是由滚动接触疲劳应力作用引起的剥离;另一类是由热作用和机械作用引起的剥离,主要有制动剥离和擦伤剥离。2种类型的车轮剥离实际上都与轮轨表面摩擦力直接相关。本文主要通过模拟试验研究轮轨摩擦力对车轮剥离的影响。Peeling is the main type of failure of wheel tread.There are generally two types of wheel tread peeling: one is caused by the rolling contact fatigue stress;the other is caused by heat and mechanical application,mainly including braking peeling and scotch peeling.Actually,both of the two types of wheel peeling relate with the wheel-rail surface friction force.In this paper,the effect of wheel-rail friction force on wheel peeling is researched mainly through the simulation test.

关 键 词：车轮 踏面剥离 摩擦力 磨损 

分 类 号：U270.331.7[机械工程—车辆工程]