A Study on the Floor Impact Noise Analysis

바닥충격음 해석에 관한 연구

  • Kim Hyun-Sil (Korea Institute of Machinery and Materials, Acoustics Lab.) ;
  • Kim Jae-Seung (Korea Institute of Machinery and Materials, Acoustics Lab.) ;
  • Kang Hyun-Joo (Korea Institute of Machinery and Materials, Acoustics Lab.) ;
  • Kim Bong-Ki (Korea Institute of Machinery and Materials, Acoustics Lab.) ;
  • Kim Sang-Ryul (Korea Institute of Machinery and Materials, Acoustics Lab.)
  • Published : 2002.07.01

Abstract

Prediction method of floor impact noise for light and heavy weight impact is described. Sound pressure level is predicted based on the impedance method. For floating floor system, noise reduction is studied assuming 1-D mass-spring system. It is found that comparisons of predictions and measurements show good agreements. However, certain correction factor is needed to predict noise reduction of floating floor system.

Keywords