High-order and low-order wheel out-of-roundness (OOR) often occur on metro train wheels, which can intensify the wheel–rail dynamic interaction. A vehicle–track rigid-flexible coupled dynamics model is built through combining the dynamics software SIMPACK with the finite element software ANSYS, which is validated by field vibration measurement results of vehicle and track. Two adjacent vehicles with two two-axle bogies for each one are considered in the model. The wheel–rail interactions caused by high-order and low-order wheel OOR are investigated. The influence of the wheel–rail interaction caused by wheel OOR on one wheelset on wheel–rail interactions at other 7 wheelsets is explored. The results show that the wheel OOR can excite the first bending vibration of the wheelset and the P2 resonance at a normal operating speed, which can result in a considerable increase of the wheel–rail dynamic interaction and wheelset vibration. The wheel–rail dynamic interaction can be transmitted from the polygonised wheelset to another wheelset of the same bogie through the rail. However, the transmission is negligible from the path of the bogie. The amplitude of wheel OOR has no effect on the transmission ratio of wheel–rail dynamic interaction, but the vertical stiffness and damping coefficient of fasteners greatly influence the transmission. The two wheelsets on the same bogie should be re-profiled simultaneously if the radial run-out for one wheelset exceeds the limit and for the other does not. The effects of vibration transmission between wheelsets and track flexibility need to be taken into account in a model for predicting the development of wheel OOR.

地铁列车车轮经常发生高阶和低阶车轮不圆度（OOR），这会加剧轮轨之间的动态相互作用。通过将动力学软件SIMPACK与有限元软件ANSYS相结合，建立了车辆-轨道刚柔耦合动力学模型，该模型已通过车辆和轨道的现场振动测量结果进行了验证。在模型中考虑了两个相邻的车辆，每个车辆有两个两轴转向架。研究了高阶和低阶车轮OOR引起的轮轨相互作用。探讨了车轮OOR对一个轮对的轮轨相互作用对其他7个轮对的轮轨相互作用的影响。结果表明，在正常工作速度下，车轮OOR可以激发轮对的首次弯曲振动和P2共振，这会导致轮轨动态相互作用和轮对振动大大增加。轮轨动态相互作用可以通过导轨从多边形轮对传递到同一转向架的另一个轮对。但是，从转向架的路径来看，传动装置可以忽略不计。车轮OOR的振幅对轮轨动力相互作用的传递比没有影响，但是紧固件的垂直刚度和阻尼系数极大地影响了传递。如果一个轮对的径向跳动超过极限，而另一个轮对的径向跳动超过极限，则应同时重新配置同一转向架上的两个轮对的轮廓。在预测车轮OOR发展的模型中，必须考虑轮对之间的振动传递和履带柔韧性的影响。