西南交通大学学报2018，Vol.53Issue(4)：741-747,7.DOI:10.3969/j.issn.0258-2724.2018.04.011
高速铁路磨耗车轮与60N钢轨静态接触分析
Static Contact Analysis of Worn-Wheel Profiles and 60N Rail of High-Speed Railway
摘要
Abstract
Over time,the running of vehicles results in different degrees of wear on the wheel treads. To study the static matching characteristics between the worn wheel and the rail,the wheel-rail contact geometry relationship and non-Hertz rolling contact theory were used to analyse the effects of worn-wheel profiles on the wheel-rail contact geometry parameters and contact behaviour. The results were compared with those of CHN60 rail and analysed. The results indicate that when the lateral displacement of the wheel set is less than 4 mm,the degree of wear on the wheel is greater,and the lateral distribution width of wheel-rail contact points on the wheel is larger. The lateral distribution width of the wheel-rail contact points of 60N rail is significantly less than that of the CHN60 rail, thereby improving the vehicle's running stability. The wheel-rail wear index increases with the degree of wheel wear. The wheel-rail wear index of 60N rail is smaller,which improves the ability to maintain the wheel-rail profile. A greater degree of wheel wear corresponds to a greater surface rolling contact fatigue area. Compared with CHN60 rail,the number of cases located in the area of surface rolling contact fatigue of 60N rail is less,which can reduce the rolling contact fatigue damage under the same conditions.关键词
高速铁路/磨耗车轮/60N钢轨/CHN60钢轨/轮轨接触Key words
high-speed railway/worn-wheel profile/60N rail/CHN60 rail/wheel-rail contact分类
交通工程引用本文复制引用
马晓川,王平,王健,徐井芒..高速铁路磨耗车轮与60N钢轨静态接触分析[J].西南交通大学学报,2018,53(4):741-747,7.基金项目
国家自然科学基金资助项目(51425804,51608459,U1234201) （51425804,51608459,U1234201）
中国铁路总公司科技项目(2015G006-C,2016G008-D) （2015G006-C,2016G008-D）
