To analyze wheel wear discrepancy between motor car and trailer of an intercity train, a novel wheel wear rates calculation model was proposed, which was composed of the intercity train dynamics model, wheel-rail three-dimensional rolling contact FEM model and the wear model. The simulated results were contrasted with measured results in field test. The simulated results showed the motor car wheels had larger rotation rate and longitudinal creepage than the trailer wheels. Meanwhile, the motor car wheels encountered larger vertical forces and longitudinal forces from bogie because of the heavier car body and the impact of traction torque. The traction torque acting on motor car wheel could increase the slip rates in the rear part of wheel contact patch and weaken the spinning phenomenon of relative slip. Larger contact pressure and slip rates caused the higher wear rates of motor car wheel than those of trailer wheel. The overall trends of wheel wear depth in simulated and tested results were similar. And they both showed the motor car wheel encountered the more serious wear than the trailer wheel. These models can be used to study the effect of the traction characteristics curves on the wear of wheel.

为了分析城际列车的机动车与挂车之间的车轮磨损差异，提出了一种新颖的车轮磨损率计算模型，该模型由城际列车动力学模型，轮轨三维滚动接触有限元模型和磨损模型组成。在现场测试中，将模拟结果与实测结果进行对比。仿真结果表明，汽车车轮比挂车车轮具有更大的旋转速率和纵向蠕变。同时，由于较重的车身和牵引扭矩的影响，汽车车轮受到较大的垂直力和转向架的纵向力。作用在汽车车轮上的牵引转矩会增加车轮接触斑片后部的滑移率，并减弱相对滑移的旋转现象。较大的接触压力和滑移率导致机动车车轮的磨损率高于拖车车轮。在模拟和测试结果中，车轮磨损深度的总体趋势是相似的。他们都表明，汽车车轮比拖车车轮磨损更严重。这些模型可用于研究牵引特性曲线对车轮磨损的影响。