列车车轮辋裂机理研究进展  

Research progress on rim crack mechanism of train

作　　者：黄志超[1] 陆嫣 姜玉强 Huang Zhichao;Lu Yan;Jiang Yuqiang(State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学轨道交通基础设施性能监测与保障国家重点实验室,江西南昌330013

出　　处：《锻压技术》2024年第6期1-13,207,共14页Forging & Stamping Technology

基　　金：江西省重大科技成果熟化与工程化研究项目(20232AEI92001)。

摘　　要：随着高速公路与重载铁路的发展,列车车轮辋裂问题变得更加显著,目前尚无根本解决办法。为此,对国内外列车车轮辋裂的分析方法、形成机理、影响因素以及检测技术进行归纳,旨在提升车轮材料疲劳强度,延长车轮使用寿命。总结了列车车轮辋裂的分析方法,主要包括疲劳失效理论和断裂力学理论;从列车轮辋疲劳裂纹萌生和扩展两个阶段综述了引发列车车轮辋裂的损伤机理,其中轮辋中夹杂物是疲劳裂纹萌生及扩展的关键因素。结合已有的研究成果,概括了列车车轮辋裂的检测技术,并探讨了列车车轮辋裂问题的未来研究方向。The problem of wheel rim crack for train becomes increasingly significant with the development of highway and heavy-loaded railway,and there is no fundamental solution at present.Therefore,the analysis methods,formation mechanisms,influencing factors and detection techniques of wheel rim crack for train at home and abroad were reviewed,in order to enhance the fatigue strength of wheel mate-rials and prolong the service life of wheels.The analysis methods of wheel rim crack for train were summarized,mainly including the fa-tigue failure theory and fracture mechanics theory.Then,the damage mechanism causing the wheel rim crack for train was summarized from two stages of wheel rim fatigue crack initiation and propagation for train,in which the inclusion in the rim was the key factor of the initiation and propagation of fatigue crack.Furthermore,combined with the existing research results,the detection technologies of wheel rim crack for train were summarized,and the future research direction of the wheel rim crack problem for train was discussed.

关 键 词：列车车轮 车轮辋裂 损伤机理 疲劳裂纹 裂纹萌生 裂纹扩展 夹杂物 

分 类 号：TG938[金属学及工艺—钳工工艺]