시속 200km/h급 고속철도차량의 공조시스템 소음저감기술개발

초록

This study represents the technique about the noise resuction of HAVC equipment for high speed train (HST) operating at 200km/h. HST is different from the low spped train in the various points as well as the speed. Especially, the noise of cabin is closely related to the comfort of passenger and the noise from HAVC is one of main noise source in the cabin. In this study, the noise from HAVE was reduced by 5 dB(A) using the concept of multiple resonator and guide vein. Therefore, the noise of cabin decreased from 60 dB(A) to 55 dB(A) at the center of the cabin.