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서지반출
Comparison of Sound Transmission Loss of Panels Used in Ship Cabins for Field and Laboratory Measurements
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  • Comparison of Sound Transmission Loss of Panels Used in Ship Cabins for Field and Laboratory Measurements
  • Comparison of Sound Transmission Loss of Panels Used in Ship Cabins for Field and Laboratory Measurements
저자명
Kim. Hyun-Sil,Kim. Jae-Seung,Kang. Hyun-Ju,Kim. Bong-Ki,Kim. Sang-Ryul
간행물명
The journal of the Acoustical Society of Korea
권/호정보
2009년|28권 |pp.9-15 (7 pages)
발행정보
한국음향학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

In this paper, FSTL (Field Sound Transmission Loss) measured in a mock-up simulating ship cabins is studied. A mock-up is built by using 6 mm steel plate, and two identical cabins are made where 25 mm or 50 mm sandwich panel is used to construct wall and ceiling inside the steel structure. Various wall panels and ceilings are tested, where effects of wall and ceiling panel thickness, and presence of a unit toilet on FSTL are investigated. It is found that the effect of unit toilet on FSTL is at most 1 dB. From the comparison of FSTL for panels of the same thickness of 50 mm, it is observed that panel having inside air cavity of 10 mm shows higher STL than that of the panel without air cavity. Comparison of FSTL for panels of 50 mm and 25 mm thickness shows that dependency on surface density predicted by mass law is not observed. The sandwich panels act as a mass-spring system, which shows a resonant mode that cannot be explained by the mass law. It is also found that STL from laboratory test is higher than FSTL by 5- 10 dB, which can be explained by flanking structure-borne noise transmission path such as ceiling, floor and corridor-facing wall.