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시속 200㎞급 고속철도차량의 공조시스템 소음저감기술개발
박철희(Chol-Hui Pak),이우식(U. Lee),주재만(JaeMan Joo),김주홍(Joohong Kim) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
This study represents the technique about the noise reduction of HVAC equipment for high speed train(HST) operating at 200 ㎞/h. HST is different from the low speed 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 HVAC is one of main noise source in the cabin. In this study, the noise from HVAC was reduced by 5 ㏈(A)" using the concept of multiple resonator and guide vein. Therefore, the noise of cabin decreased from 60 ㏈(A) to 55 ㏈(A) at the center of the cabin.