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Studies on the relationship between sound absorption capability and air permearbility of wood in longitudinal direction

  • Chun Won Kang
  • , Eun Suk Jang
  • , Sang Sik Jang
  • , Ho Yang Kang
  • , Xue Feng Zhao
  • CBNU
  • CNU
  • Beihua University

Research output: Conference(x)Paperpeer-review

Abstract

The sound absorption capability and the air permeability of three species of Japanese wood in longitudinal direction were investigated. The air permeability of heartwood and sapwood of Sugi, Chanchin-modoki and Yurinoki were 0.5, 18.2, 0.06, 0.92, 0 (air flow not detected) and 0.91darcy, respectively. The noise reduction coefficient (NRC) of those were 0.04, 0.11, 0.04, 0.05, 0.09 and 0.14, respectively. Also, the mean sound absorption coefficient of those sample specimens in the frequency range of 50-6400 Hz were 0.08, 0.16, 0.06, 0.09, 0.20 and 0.30, respectively. It was determined that the sound absorption capability of estimated sample specimens was increased with increasing of air permeability.

Original languageEnglish
StatePublished - 2018
Event2018 World Conference on Timber Engineering, WCTE 2018 - Seoul, Korea, Republic of
Duration: 2018.08.202018.08.23

Conference

Conference2018 World Conference on Timber Engineering, WCTE 2018
Country/TerritoryKorea, Republic of
CitySeoul
Period18.08.2018.08.23

Keywords

  • Air permeability
  • Chanchin-modoki
  • Sound absorption coefficient
  • Sugi
  • Yurinoki

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