Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 1998.04a
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- Pages.634-642
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- 1998
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- 1598-2548(pISSN)
Sound Transmission Loss of Double Panels : II. Double Panels with Porous Materials
이중판의 차음손실 : II. 다공질재 이중판
Abstract
This paper deals with the analytical model of an elastic porous material in sound transmission loss of a double panel with fiber glasses. From the parametric analysis, it is concluded that the boundary condition, which is concerned to the contact between the skin panel and core materials, does not have much influence on sound transmission loss of a double panel with fiber glasses, and material properties of the porous material become, however, important factors to mass-spring-mass resonance. The comparisons of the prediction with the measurement of sound transmission loss of walls show good agreement between the two values.
Keywords