STUDY ON THE REDUCTION OF NOISE FROM SUBWAY VEHICLE IN A SHARP CURVE

초록

The noise from subway vehicle in a sharp curve is very important noise source because of very high noise level. In order to reduce the curving noise level, several methods are able to be considered. In this study, the low noise wheel and rail head/side lubrication were considered. Before treatment of curving noise reduction method, the curving noise was measured. In individual method, the measurement results after treatment were compared to those before treatment. The noise reduction effects were analyzed in magnitude and frequency.