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호경찬(Ho Kyoung-Chan),이병철(Lee Byoung-Chul),이용현(Lee Yong-Hyun),김건영(Kim Gun-Young) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
The noise emitted during train operation is generated with various reasons. It is known that the major noise generation is classified according to the ranges of train speed; that is, engine noise at lower speed range, rolling noise at medium speed range, and air-borne noise at higher speed range. These noises are transmitted in combined form with the noises generated from track components and under-carriage, etc. The rolling noise as a major noise at medium speed range is caused by the vibration occurred at wheel/rail interface. The vibration occurred at wheel/rail interface is transmitted to wheel and rail, and this vibration is emitted from wheel and rail as a noise. In this paper, a soundproof box which can simply measure the noise emitted from rail and analyze the characteristics of the measured noise is studied.