Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2003.11a
  • /
  • Pages.751-755
  • /
  • 2003
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study of floor impact noise reduction in a steel structure by using the floating floor

Floating floor를 이용한 강구조물의 바닥충격음 저감에 관한 연구

  • 김현실 (한국기계연구원 음향연구그룹) ;
  • 김재승 (한국기계연구원 음향연구그) ;
  • 강현주 (한국기계연구원 음향연구그) ;
  • 김봉기 (한국기계연구원 음향연구그) ;
  • 김상렬 (한국기계연구원 음향연구그룹)
  • Published : 2003.11.01
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Abstract

In this paper, floor impact noise reduction in a steel structure 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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