摘要
建立轮轴过盈配合部位的微动磨损有限元仿真模型,研究磨损轮廓随载荷循环周次的变化,对比分析空心与实心车轴微动磨损行为及其对接触参量的影响。仿真结果表明:车轴配合边缘的应力集中程度由于微动磨损而缓解,新的应力集中位于磨损与未磨损的过渡区域;磨损区域随着循环周次的增加而增加,导致应力集中远离轮轴配合边缘;在靠近配合边缘的区域,空心车轴的滑移幅值大于实心车轴,导致空心车轴的微动磨损大于实心车轴。
The finite element(FE)simulation model of fretting wear of press-fit part of the axle was established,the change of wear profile with the load cycle was studied.The fretting wear behavior of the hollow and solid axle and its influence on the contact parameters were compared and analyzed.The simulation results show that the stress concentration near the contact edge of press-fitted part is gradually relieved owing to fretting wear,while a new stress concentration appears at the worn-unworn boundary.With the increase in fretting cycles,the width of the fretting wear scar increases,resulting in the stress concentration away from the contact edge.In the region near the contact edge,the slip amplitude of hollow axle is larger than that of solid axle,which leads to the fretting wear of hollow axle is larger than that of solid axle.
作者
陈刚
曾东方
张艳
鲁连涛
宫昱滨
张关震
CHEN Gang;ZENG Dongfang;ZHANG Yan;LU Liantao;GONG Yubin;ZHANG Guanzhen(National Local Joint Engineering Research Center of Advanced Manufacturing Technology of the Key Components of Rail Transit,Railway Transportation Materials Technology Co.Ltd.,Ma Steel,Baowu Group,Maanshan 243000,China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China;Metals&Chemistry Research Institute,China Academy of Railway Sciences Co.Ltd.,Beijing 100010,China)
出处
《安徽工业大学学报（自然科学版）》
CAS
2020年第1期12-18,共7页
Journal of Anhui University of Technology（Natural Science）
基金
国家重点研发计划(2017YFB0703004)。
关键词
车轴
微动磨损
过盈配合
应力集中
railway axle
fretting wear
press-fit
stress concentration
