In railroad vehicle dynamics, the centrifugal inertia forces, often associated with curved tracks, are balanced by the lateral component of the gravity force by limiting the vehicle operation speed to the balance speed. This is achieved by the super-elevation of the track by the bank angle. When a vehicle negotiates a tangent (straight) track, on the other hand, the center of mass of the vehicle, as the result of the wheel conicity and hunting oscillations, traces a space curve, giving rise to an inertia force that has a centrifugal force component. Because of the vehicle roll rotation, such a centrifugal inertia force is balanced by a gravity-force component without the need for super-elevating the track. This paper shows that the geometric self-centering due to the wheel conicity is the result of a force self-balancing that contributes to safe operation of the rail vehicle during the hunting oscillations on tangent tracks.

在铁路车辆动力学中，通过将车辆运行速度限制为平衡速度，通常与弯轨相关的离心惯性力由重力的横向分量平衡。这是通过将轨道超高倾斜角度来实现的。另一方面，当车辆通过切线（直线）时，由于车轮锥度和摆动振动，车辆的质心会跟踪空间曲线，从而产生具有离心力的惯性力力分量。由于车辆侧倾旋转，这种离心惯性力由重力分量平衡，而无需使轨道超高。本文证明了几何自对中由于车轮锥度而产生的力是自平衡力的结果，该力自平衡在切线轨道上的摆动振荡期间有助于轨道车辆的安全运行。