Characteristics of Wheel/Rail Rolling Contact of Guangzhou Metro Line-1

According to the Wheel and Rail of Guangzhou Metro line-1,the finite element software was dopted to construct the 3D wheel/rail rolling contact finite element model.The characteristics of wheel/rail rolling contact under different traction force and lateral displacement was analyzed.The results show that the traction force changes the distribution of the Mises stress;With the increase of the traction force,the longitudinal force of friction in the contact patch significantly increased,the rear of the contact patch appears creep first,the greater the traction force was,the smaller the adhesion area of contact patch was and the bigger the creep area was; When the lateral displacement was between-5mm and 5mm,the contact patch distributed on an inclined plane of wheel tread,the gradient of the plane was 1:46,From this point of view,this tread matched with CHN60rails is not fully play the role of the worn tread that to increase the contact area and reduce the contact stresse.