Research on sound insulation of multiple-layer structure with porous material and air-layer

Guofeng Bai, Pei Zhan, Fusheng Sui, Jun Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Sound insulation performance of multiple-layer structure is investigated which consists of elastic solid, fluid and porous material. The Biot theory of sound propagation in elastic porous medium and the method of transfer matrix are used to derive the transmission loss of typical layered-structure. The influence of air-layer and porous material on sound insulation performance of multiple-layer structure had been discussed by numerical calculation and experimental testing. The result indicates that the air-layer and porous material can improve sound insulation performance of multiple-layer structure and their distribution also has great influence on the sound insulation performance.

Original languageEnglish
Title of host publicationINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering
Subtitle of host publicationImproving the World Through Noise Control
EditorsJohn Davy, Marion Burgess, Charles Don, Liz Dowsett, Terry McMinn, Norm Broner
PublisherAustralian Acoustical Society
ISBN (Electronic)9780909882037
Publication statusPublished - 2014
Externally publishedYes
Event43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 - Melbourne, Australia
Duration: Nov 16 2014Nov 19 2014

Publication series

NameINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control

Conference

Conference43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
Country/TerritoryAustralia
CityMelbourne
Period11/16/1411/19/14

ASJC Scopus Subject Areas

  • Acoustics and Ultrasonics

Keywords

  • Porous material
  • Sound transmission loss
  • Transfer matrix

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