Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Evaluation of Sound Insulation Performance of a Unit Cabin Mock-up

유니트 캐빈 목업(mock-up)의 차음성능평가

  • Kim, Hyun-Sil (Acoustics and Noise Research Team, Korea Institute of Machinery & Materials) ;
  • Kim, Sang-Ryul (Acoustics and Noise Research Team, Korea Institute of Machinery & Materials) ;
  • Kim, Bong-Ki (Acoustics and Noise Research Team, Korea Institute of Machinery & Materials) ;
  • Kim, Jae-Seung (Acoustics and Noise Research Team, Korea Institute of Machinery & Materials) ;
  • Lee, Sung-Hyun (Acoustics and Noise Research Team, Korea Institute of Machinery & Materials)
  • 김현실 (한국기계연구원 음향 소음팀) ;
  • 김상렬 (한국기계연구원 음향 소음팀) ;
  • 김봉기 (한국기계연구원 음향 소음팀) ;
  • 김재승 (한국기계연구원 음향 소음팀) ;
  • 이성현 (한국기계연구원 음향 소음팀)
  • Received : 2010.08.17
  • Accepted : 2010.11.05
  • Published : 2011.02.20
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Abstract

Sound insulation performance of a unit cabin mock-up is studied, where two identical rooms simulating cruise ship cabin are installed. STL (Sound Transmission Loss) measurement in the mock-up shows that STL of the partition between rooms is degraded by imperfect door ceiling and gap between wall and floor. It is also observed that gap around lighting and electrical outlet slightly affect the STL in high frequency ranges, since lighting and electrical outlet are supported by mineral wool in the back side due to fire-resistance requirement. Even after all possible gaps are sealed, STL of the partition is found to be lower than that measured in the laboratory by 9 dB. Measurement of SBN (Structure-Borne Noise) reveals that flanking transmission of SBN along the steel deck floor can severely deteriorate STL of the partition. Statistical energy analysis (SEA) of the mock-up confirms importance of the floor SBN control, in which increasing damping is essential to ensure high STL.

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References

  1. Crocker, M.J. & Price, A.J., 1969. Sound Transmission using Statistical Energy Analysis. Journal of Sound and Vibration, 9(3), pp.469-486. https://doi.org/10.1016/0022-460X(69)90185-0
  2. Galbrun, L., 2008. The Prediction of Airborne Sound Transmission between Two Rooms using First-Order-Flanking Paths. Applied Acoustics, 69(12), pp.1332-1342. https://doi.org/10.1016/j.apacoust.2007.08.010
  3. Guyader, J.L. Boissson, C. Lesueur, C. & Millot, P., 1986. Sound Transmission by Coupled Structures: Application to Flanking Transmission in Buildings. Journal of Sound and Vibration, 106(2), pp.289-310. https://doi.org/10.1016/0022-460X(86)90320-2
  4. Hongisto, V., 2001. A Case Study of Flanking Transmission through Double Structures. Applied Acoustics, 62(5), pp.589-599. https://doi.org/10.1016/S0003-682X(00)00061-X
  5. ISO 140-3, 1995. Laboratory Measurement of Airborne Sound Insulation of Building Elements. ISO.
  6. ISO 15712-1, 2005. Building Acoustics-Estimation of Acoustic Performance of Building from the Performance of Elements- Part I: Airborne Sound Insulation between Rooms. ISO.
  7. Joo, W.H. et al., 2008. Quantitative Evaluation of Airborne Sound Insulation in Ship's Accommodation Using Large Scale Noise Test Facilities. Noise Control Engineering Journal, 56(1), pp.45-51. https://doi.org/10.3397/1.2827986
  8. Kang, H.J. Kim, J.S. Kim, H.S. & Kim, R.S., 2001. Influence of Sound Leaks on in situ Sound Insulation Performance. Noise Control Engineering Journal, 49(3), pp.113-119. https://doi.org/10.3397/1.2839646
  9. Kim, H.S. et al., 2009. Comparison of Sound Transmission Loss of Panels used in Ship Cabins for Field and Laboratory Measurements. The Journal of the Acoustical Society of Korea, 28(1E), pp.9-15.
  10. Lang, J., 1993. Measurement of Flanking Transmission in Outer Walls in Test Facilities. Applied Acoustics, 40(3), pp.239-254. https://doi.org/10.1016/0003-682X(93)90079-L
  11. Ver, I.L. & Beranek, L.L., 2006. Noise and Vibration Control Engineering. John Wiley & Sons, Inc.
  12. Weissenburger, J.T., 1994. The Significance of Laboratory vs. Field Sound Transmission Loss. Sound and Vibration, October Issue, pp.12-14.