Vehicle-track interaction in a switch panel diverging route is studied with a focus on the way its components may interact in the lateral direction. Taking one of the cases of S&C benchmark as the base model, several variants of the co-running track model are considered. In the first series of simulation, the effect of the lateral separation of the switch rail and stock rail is investigated, showing that only small differences are found in terms of wheel/rail forces between a track model where both rails are coupled, and one where they are free to move with respect to one another. Only transient effects are visible at the beginning and at the end of the two-point contact on both rails. While small, these differences can have some influence in terms of rolling contact fatigue and wear prediction. In the second series of simulation, co-running track models are developed including the baseplate and taking into account such effects as switch rail/stock rail contact at the undercut plane and dry friction. Significant changes are observed in the load distribution within the switch panel. Conclusions should be consolidated through experimental field measurement and using more realistic track models, e.g. discretely supported rail beam models.

研究了开关面板分叉路线中的车辆轨道相互作用，重点是其组件在横向方向上相互作用的方式。以 S&C 基准案例之一作为基础模型，考虑了协同跑道模型的几种变体。在第一个系列的模拟中，研究了尖轨和备用轨横向分离的影响，表明在双轨耦合的轨道模型和双轨耦合的轨道模型之间，轮/轨力只有很小的差异他们可以相对于彼此自由移动。在两条轨道上的两点接触的开始和结束处只能看到瞬态效应。这些差异虽然很小，但会对滚动接触疲劳和磨损预测产生一些影响。在第二系列模拟中，共同运行的轨道模型的开发包括底板，并考虑了底切平面处尖轨/原轨接触和干摩擦等影响。在开关面板内的负载分布中观察到显着变化。应通过实验现场测量和使用更真实的轨道模型（例如离散支撑的轨道梁模型）来巩固结论。