가속도 센서를 이용한 철도레일 음향조도 측정과 해석

초록

A large roughness growth on the rail surface becomes a main cause of rolling noise when a train passes a track. Therefore, a proper track maintenance activity and intervention has to be performed with a reliable knowledge of rail surface roughness status. Various techniques can be used to measure the rail roughness. This paper, however, propers a roughness estimating method with a accelerometer to minimize effects of measuring platform itself and increase accuracy of sampled data.