A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control  

作　　者：Yunfan YANG Liang LING Jiacheng WANG Wanming ZHAI 

机构地区：[1]State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China

出　　处：《Friction》2023年第8期1470-1492,共23页摩擦（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.51735012,52072317,and 51825504);State Key Laboratory of Traction Power(Grant No.2021TPL-T08).

摘　　要：Tread wear and rolling contact fatigue (RCF) damage propagated on railway wheels are the two extremely important focal points as they can tremendously deteriorate wheel/rail interactions and hunting stability and destroy wheel surface materials, and subsequently, cut down the lifetime of the wheels. The on-board anti-slip controllers are of essence aiming to hold back the striking slipping of the powered wheelsets under low-adhesion wheel/rail conditions. This paper intends to investigate the impact of anti-slip control on wheel tread wear and fatigue damage under diverse wheel/rail friction conditions. To this end, a prediction model for wheel wear and fatigue damage evolution on account of a comprehensive vehicle–track interaction model is extended, where the wheel/rail non-Hertzian contact algorithm is used. Furthermore, the effect of frictional wear on the fatigue damage at wheel surface is considered. The simulation results indicate that the wheel/rail contact is full-slip under the low-adhesion conditions with braking effort. The wear amount under the low-adhesion conditions is observably higher than that under the dry condition. It is further suggested that the wheel tread is prone to suffering more serious wear and fatigue damage issues with a higher anti-slip control threshold compared to that with a lower one.

关 键 词：anti-slip control wheel/rail non-Hertzian contact adhesion condition wheel tread wear fatigue damage 

分 类 号：U211.5[交通运输工程—道路与铁道工程]