钢轨磨损量与摩擦功关系研究  

Study on the Relationship between Rail Wear Volume and Friction Work

作　　者：陈明韬[1] 王文健[1] 刘启跃[1] 

机构地区：[1]西南交通大学,成都610031

出　　处：《铁道工程学报》2010年第11期52-55,67,共5页Journal of Railway Engineering Society

基　　金：国家973计划项目(2007CB714702);国家自然科学基金项目(50675183;50875221);西南交通大学创新团队培育计划资助项目(2007IRT01)

摘　　要：研究目的:通过JD-1轮轨模拟试验机考察了轴重和曲线半径对钢轨磨损量的影响;利用CONTACT程序分析了相同工况下轴重和曲线半径对轮轨摩擦功的影响。研究结论:结合试验与计算结果,对钢轨磨损量与摩擦功之间的关系进行了研究,初步得出了利用摩擦功模拟计算钢轨试样磨损量的经验公式:w=(-0.014 46((R/800)t)^(1/2)+0.53324R/800)W,结果对实验室研究钢轨滚动接触磨损有一定的参考价值。Research purposes： The test was done to the effects of axle load and curve radius on the rail wear volume by using a JD-1 wheel-rail simulation facility.Furthermore,the analysis was made for the effects of axle load and curve radius on friction work of wheel and rail under the same working condition with numerical programme CONTACT.Based on the test and calculation result,the study was done on the relationship between rail wear volume and friction work and the preliminary empirical formula was offered for simulation calculating the wear volume of rail specimen by using friction work.Research conclusions：The wear volume of rail specimen and friciton work of contact area of wheel and rail changes with the changes of the axle load and curve radius.There is a corresponding relationship between wear volume and friciton work of wheel and rail.This study result offers a certain reference value to studying rolling contact wear of rail in laboratory.

关 键 词：钢轨磨损 轴重 曲线半径 摩擦功 经验公式 

分 类 号：U213.42[交通运输工程—道路与铁道工程]