鉄道曲線部で発生するきしり音に関する縮尺模型を用いた検討（実験編）

抄録

Measurements and theoretical studies related to wheel/rail noise have been carried out widely and thoroughly. The wheel/rail noise from 250 Hz to 4 kHz significantly influences the wayside noise along railway lines. However, when a train runs on a sharply curved track, squeal noise due to wheel and rail interactions in the frequency range of 1 kHz to 5 kHz has greater contribution to the total wayside noise. In this paper, scale model tests using simplified wheel and rail are carried out in order to develop a prediction model of squeal noise. It is found that the scale model apparatus could simulate squeal noise. Furthermore, at the range of attack angle from 0° to 3°, the vibration of the disk is greater as the angle is lager. This is due to the axial force between the disk and the roller.