측정 플랫폼 휠의 탄성 변형에 따른 전동소음 영향 평가

초록

Rolling noise is occurred by friction between the wheel-tread roughness of a running train and the irregular rail. In order to reduce the railway noise and vibration, it is essential to maintain the surface of wheel and rail. Precise measuring and analyzing the rolling noise and rail acoustic roughness contribute to this. Especially this research develop the automatic rail surface roughness measuring device which can measure the surface roughness of irregular rail in constant velocity environment and address the influence of design factors on data through analysis of measured data.