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

  • 2006.05a
  • /
  • Pages.1417-1420
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  • 2006
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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An Analysis of Floor Impact Noise by using Wave Model

Wave 모델을 이용한 바닥충격음 해석

  • 김현실 (한국기계연구원 음향연구그룹) ;
  • 김재승 (한국기계연구원 음향연구그룹) ;
  • 강현주 (한국기계연구원 음향연구그룹) ;
  • 김봉기 (한국기계연구원 음향연구그룹) ;
  • 김상렬 (한국기계연구원 음향연구그룹)
  • Published : 2006.05.01
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Abstract

In this paper, floor impact is studied by using 1-D wave model and predicted insertion loss is compared to the measurements done in the mock-up. A mock-up is built by using 6t steel plate, and two identical cabins are made where 25t or 50t panel is used to construct wall and ceiling inside the steel structure. Various floating floor structures are studied, in which mineral wool thickness, height, and stiffness changes are investigated. It is shown that the wave model and measurements are in good agreements in general, although there occur significant discrepancies in the low frequency range below 200 Hz.

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