Development of Displacement-dependent Rubber Bush for Yaw Damper to Prevent Carbody Vertical Vibration

抄録

The vertical vibration of railway vehicle carbodies induced by the rotation of wheelset(s) with a small mass imbalance needs to be suppressed to improve ride comfort. For this reason, a displacement-dependent rubber bush, which is used for connecting the bogie frame to the carbody was developed. This paper presents a displacement-dependent rubber bush for yaw dampers. To confirm the vibration suppression performance of the devised rubber bush, rotating excitation tests and running tests were performed. Results demonstrated that the vertical vibration of the carbody induced by the rotation of imbalanced wheelsets was reduced by use of the developed displacement-dependent rubber bush.