扭转柔性的轮对对铁路车辆摇头振动稳定性的影响,已用求解特征值问题的方法来进行研究。初级的模型即是一个由二个扭转柔性轮对构成的简单的转向架。为了进行比较,也介绍了由一个车体、两台转向架和四对扭转柔性轮对构成的完整的车辆模型。这项研究表明铁路车辆摇头振动临界速度在应用扭转柔性轮对时引起重大的下降。 The effect of flexible wheelset on the vibration stability of railway vehicle shaking head has been reversed, and the method of solving eigenvalue problem has been studied. The primary model is a simple bogie consisting of two twisted pairs of flexible wheels. For the sake of comparison, a complete vehicle model consisting of a body, two bogies and four pairs of twisted pairs of flexible wheels is also introduced. This study shows that the critical speed of shaking vibration of railway vehicles causes a significant drop when the flexible wheel pair is twisted.