中文摘要：

当高速度的火车过去对方与一个多身体动力学方法被调查，在有和空气压力脉搏的德国高速度的低干扰的轨道光谱的刺激下面的一个车厢的动态回答产生了。自由的度的变化(DOF：水平运动，转动角度，并且偏航角度) ，有二个车厢在开的空中相遇的时间的车轮负担减小的侧面的车轮栏杆力量，出轨系数，和率被获得并且以指定速度与一列单个火车的结果相比旅行。结果证明车轮负担减小的率随火车速度的增加增加并且以某个速度满足某安全标准，但是超过车轮负担减小的率的价值未必确实意味着出轨。车轮负担减小的率的评估标准是有点保守的并且可以被松开。压力脉搏在这些安全索引的火车 DOF，和评估上有重要效果强烈在实践被建议。压力脉搏在出轨系数和侧面的车轮栏杆力量上有有限效果，并且，这样，他们的进一步的评估可能不是必要的。自由的火车度的图形的 AbstractThe 动态行为(水平运动，卷角度并且偏航角度) ，当在开的空中的二个高速度的火车会与一个多身体动力学方法被调查时，车轮的侧面的车轮栏杆力量，出轨系数，和率装载减小。压力脉搏在出轨系数和侧面的车轮栏杆力量上有有限效果，但是它在自由，评估强烈在实践为被建议的火车度上有重要效果。

英文摘要：

Dynamic responses of a carriage under excitation with the German high-speed low-interference track spectrum together with the air pressure pulse generated as high-speed trains passing each other are investigated with a multi-body dynamics method.The variations of degrees of freedom（DOFs：horizontal movement,roll angle,and yaw angle）,the lateral wheel-rail force,the derailment coefficient and the rate of wheel load reduction with time when two carriages meet in open air are obtained and compared with the results of a single train travelling at specifie speeds.Results show that the rate of wheel load reduction increases with the increase of train speed and meets some safety standard at a certain speed,but exceeding the value of the rate of wheel load reduction does not necessarily mean derailment.The evaluation standard of the rate of wheel load reduction is somewhat conservative and may be loosened.The pressure pulse has significan effects on the train DOFs,and the evaluations of these safety indexes are strongly suggested in practice.The pressure pulse has a limited effect on the derailment coefficien and the lateral wheel-rail force,and,thus,their further evaluations may be not necessary.