中国铁道科学2018，Vol.39Issue(2)：87-93,7.DOI:10.3969/j.issn.1001-4632.2018.02.11
轮轨材料硬度匹配对车轮多边形磨耗影响的试验研究
Experimental Study on Influence of Wheel-Rail Material Hardness Matching on Wheel Polygonal Wear
摘要
Abstract
In order to study the influence of wheel-rail material hardness matching on wheel polygonal wear and find a wheel-rail material hardness matching relationship to avoid wheel polygonal wear,the polygonal wear tests of wheel specimens with the wheel-rail material of low,medium and high hardness under 9 kinds of hardness matching were carried out on small scale twin-wheel test rig for rolling contact wear in dry condition.Results show that,when the wheel-rail material hardness ratio is less than 1.05,16 order polygonal wear occurs on the wheel specimen significantly.The coupling vibration frequency of wheel specimen and rail specimen is 53.3 Hz,and the radial beat of the polygonal wear on the wheel specimen reduces gradually with the increase of the hardness ratio of wheel-rail materials.When the wheel-rail material hardness ratio is greater than 1.36,there is almost no polygonal wear on the wheel specimen.There is no obvious polygonal wear on the rail specimen under 9 kinds of hardness matching.关键词
车轮/钢轨/硬度比/粗糙度/频谱特性/多边形磨耗/小比例试验台Key words
Wheel/Rail/Hardness ratio/Roughness/Spectral characteristic/Polygonal wear/Small scale test rig分类
交通工程引用本文复制引用
常崇义,李果,张银花,周邵博..轮轨材料硬度匹配对车轮多边形磨耗影响的试验研究[J].中国铁道科学,2018,39(2):87-93,7.基金项目
中国铁路总公司科技研究开发计划项目(Z2013-J008,2014J002-A) （Z2013-J008,2014J002-A）
