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

The Society of Naval Architects of Korea (대한조선학회)
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A Study on Noise and Vibration Reduction Measurements of a Floating Floor Structure by means of a Ship Cabin Mock-up

선박 격실 mock-Up을 이용한 뜬바닥구조의 소음.진동 저감효과 계측에 관한 연구

  • Kim, Hyun-Sil (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kim, Jae-Seung (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kang, Hyun-Ju (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kim, Bong-Ki (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kim, Sang-Ryul (Acoustics Lab., Korea Institute of Machinery & Materials)
  • 김현실 (한국기계연구원 음향.소음팀) ;
  • 김재승 (한국기계연구원 음향.소음팀) ;
  • 강현주 (한국기계연구원 음향.소음팀) ;
  • 김봉기 (한국기계연구원 음향.소음팀) ;
  • 김상렬 (한국기계연구원 음향.소음팀)
  • Published : 2008.12.31
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Abstract

In this paper, noise and vibration reduction for floating-floored ship cabin is studied. A mock-up is built by using 6 mm steel plate, and two identical cabins are made for simulation of ship cabins. When a speaker is used as a sound and vibration sources, it is shown that floating floor is more effective in isolating sound than bare deck by 2-5 dB. It is also shown that structure-borne noise of the bare deck is greater than that of floating-floored deck by 3-10 dB. For tapping machine excitation, it is found that the effect of floating floor in airborne noise and structure-borne noise reduction reaches up to 40-50 dB for high frequency ranges.

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References

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