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 with a running vehicle in RTRI were carried out in order to understand squeal noise and develop the measures. It is found that rail vibrations related to squeal noise are reduced by lubrication on the surface of the rail. These trends show good agreement with the results obtained with an actual train vehicle in previous studies. Furthermore, for the rail roughness and rail pad stiffness, significant difference in rail vibration related to squeal noise can’t be seen in these tests.
