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

The Society of Naval Architects of Korea (대한조선학회)
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A Study of Floor Impact Noise Reduction of Cabin Using Floating Floor

뜬바닥구조를 이용한 선실 바닥충격음 저감에 관한 연구

  • Published : 2004.10.01
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Abstract

In this paper, floor impact noise reduction in cruise ship cabin is studied. A mock-up is built by using 6t steel plate, and two identical cabins are made where 25t panel is used to construct wall and ceiling inside the steel structure. Various floating floor systems are tested for which normalized impact noise is measured according to ISO 140-7. In addition, floor SBN (Structure-borne Noise) and floor damping are measured to study the effect of floating floor structure. It is shown that VL(Visco-elastic Layer) is more effective when hard plates are added above the VL.

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References

  1. ISO 140-6, 1998, Laboratory measurement of impact sound insulation of floors
  2. ISO 140-7, 1998, Field measurement of impact sound insulation of floors
  3. Harris. C.M., 1988, Handbook of Acoustical Measurements and Noise Control, Acoustical Society of America
  4. Thomson, W.T., 1972, Theory of Vibration with Application, Prentice-Hall inc.