Material parameter determination in glass wool mat for sound absorption

Chengdong Li, Zhaofeng Chen, Jieming Zhou, Binbin Li, Wangping Wu, Zhou Chen, Tengzhou Xu, Jinlian Qiu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Glass wool mat is widely used in the fields of building engineering, transport facilities and refrigeration equipment. In this paper, the effect of material parameters such as density, thickness, porosity, and flow resistivity on the normal incidence absorption coefficient has been studied. In addition, fiber length is also investigated to achieve appropriate strength. The prediction error of normal incidence absorption coefficient by modified Johnson-Allard model is less than 5% in the frequency range between 800 Hz and 5 kHz. We could use the modified Johnson-Allard model to determine the parameter of glass wool mat for better development.

Original languageEnglish
Title of host publicationMechanical Engineering, Materials and Energy
Pages1271-1275
Number of pages5
DOIs
StatePublished - 2012
Externally publishedYes
Event2011 International Conference on Mechanical Engineering, Materials and Energy, ICMEME 2011 - Dalian, China
Duration: 19 Oct 201121 Oct 2011

Publication series

NameApplied Mechanics and Materials
Volume148-149
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Mechanical Engineering, Materials and Energy, ICMEME 2011
Country/TerritoryChina
CityDalian
Period19/10/1121/10/11

Keywords

  • Glass wool mat
  • Modified Johnson-Allard model
  • Normal incidence absorption coefficient

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