为了确定铁路车辆的安全性,只对车辆倾覆危险性进行研究是不够的,还应该研究车辆的脱轨危险性。本文将以铁路车辆内部特性和外部作用的影响为研究重点。铁路车辆的内部特性,主要包括转向架构架、车体和轮对的质量、车辆重心位置、车辆一系和二系悬挂装置的垂直和横向特性等。此外还有轮对和转向架之间,以及转向 In order to determine the safety of railway vehicles, it is not enough to study the risk of vehicle overturning alone. The risk of derailment of vehicles should also be studied. This article will focus on the internal and external effects of railway vehicles. The internal characteristics of railway vehicles mainly include the bogie frame, the mass of the vehicle body and the wheelset, the center of gravity of the vehicle, the vertical and horizontal characteristics of the first-class and second-class vehicle suspensions. In addition there are wheelsets and bogies, as well as steering