一种评定摆式列车回复安全性的方法

A Criterion for Evaluating Tilting Trains Return Safety

提出了采用摆式列车倾摆机构的回复角刚度来评定摆式列车的回复安全性的方法。回复角刚度表述了在倾摆过程中倾摆机构失去动力时 ,车体回复中位的稳定性。当回复角刚度为正时 ,车体可在重力作用下回复到中位 ;为负时则不能回复到中位 ;为零时处于临界状态。可以把回复角刚度作为衡量车辆回复安全性的指标。

The return angle stiffness of tilting mechanism can be taken to judge the return safety of tiltin g trains is put forward. Return angle stiffness describes the stability of car body returning to neutral position when tilting mechanism loses power during the car body tilting. When the return angle stiffness is positive, the car body c an return to the neutral position under the action of weight. When the return an gle stiffness is negative, the car body can not return to the neutral position. When the return angle stiffness is zero, the car body is in a critical p osition. Therefore, the return angle stiffness can be used as a criterion for ev aluating the return safety of tilting trains.