CAJ | 학술논문

车轮与钢轨在运用中相互作用引起磨耗，在曲线区段轮轨磨耗尤为严重。本文以大量现场检修数据为基础，经过统计整理，得出机车轮缘及曲线区段钢轨型面磨耗演变规律。基于现场实测轮轨型面数据，建立了有限元模型，对曲线区段磨耗后车轮及钢轨进行弹塑性接触计算，有限元计算结果与现场检修数据相互验证。经过分析可得：机车车轮磨耗按轮缘磨耗速率不同可分为5个阶段，其中第3个阶段磨耗速率最低；圆曲线区段钢轨磨耗稳定期型面与磨耗后车轮型面接触性能最好，根据接触斑的变化可以得出曲线区段钢轨磨耗后型面演变规律。
차륜여강궤재운용중상호작용인기마모，재곡선구단륜궤마모우위엄중。본문이대량현장검수수거위기출，경과통계정리，득출궤차륜연급곡선구단강궤형면마모연변규률。기우현장실측륜궤형면수거，건립료유한원모형，대곡선구단마모후차륜급강궤진행탄소성접촉계산，유한원계산결과여현장검수수거상호험증。경과분석가득：궤차차륜마모안륜연마모속솔불동가분위5개계단，기중제3개계단마모속솔최저；원곡선구단강궤마모은정기형면여마모후차륜형면접촉성능최호，근거접촉반적변화가이득출곡선구단강궤마모후형면연변규률。
Interaction between wheels and rails causes abrasion in operation,which behaves especially badly in curve sections of railway lines.In this paper,on the basis of a mass of field repair data of W-R profiles in dif-ferent wear stages,the law of wear evolvement of wheel flanges and rail profiles in curve sections was abstract-ed.On the basis of the measured data of worn W-R on profiles,the finite element method (FEM)models were built.Elastic-plastic contact calculations were carried out.The FEM calculation results and field repair data were mutually verified.The following conclusions are drawn:Wear of locomotive wheels is divided into five sta-ges according to the wearing speed of wheel flanges;the flange wearing speed remains the lowest in the third stage;contact of rails in circular curve sections in the stabilized wearing state with worn wheel profiles is the best performance;the evolvement rule of profiles of worn rails in curve sections can be learned from develop-ment of contact patches.