HOW DO THE PORE TRAITS OF HARDWOODS AFFECT SOUND ABSORPTION PERFORMANCE OF THEIR CROSS SECTIONS? - FOCUS ON 6 SPECIES OF KOREAN HARDWOODS

Authors

Keywords:

sound absorber, natural sound absorber, through-pore porosity, closed-pore porosity, drying, impregnation

Abstract

An investigation of sound absorption in 6 species of hardwoods according to the pore structure of cross-sections revealed that higher gas permeability was associated with greater sound absorption at high frequencies. In addition, diffuse-porous wood exhibited superior sound absorption performance compared with ring-porous wood. Through-pore porosity was associated with improved sound absorption in the cross-sections of hardwoods, while closed=pore porosity was associated with poor sound absorption.

Author Biographies

Eun-Suk Jang, Jeonbuk National University (Korea)

Department of Housing Environmental Design, and Research Institute of Human Ecology, College of Human Ecology

Chun-Won Kang, Jeonbuk National University (Korea)

Department of Housing Environmental Design, and Research Institute of Human Ecology, College of Human Ecology

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Published

2021-11-10

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Section

Research Contributions