Coupled Vibrations between Railway Vehicle Wheels and a Rail : 2nd Report, Axial Steady-state Vibration of a Rotating Wheel

抄録

Rolling noise arises from the vibration due to the interaction between wheels and rail through the contact points. The authors treated the vibration of a rail in the horizontal and vertical directions in the previous papers. In this report, the axial vibration of a rotating wheel, at the circumference of which shear force and spin moment from kalker's linear creep theory act simultaneously, is formulated in order to consider the coupled vibration between wheels and rail in the horizontal direction. It is shown that the response of the steady-state vibration is obtained by solving the simultaneous algebraic equations with respect to the contact forces. As a verification of the present analytical method, the theoretical and experimental impedance characteristics of a stationary wheel suspended with springs at a point on the outer circumference are compared.