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자료유형
학술저널
저자정보
정정호 (방재시험연구원) 김규제 (타이가) 김정중 (환경음향연구소)
저널정보
한국생활환경학회 한국생활환경학회지 한국생활환경학회지 제17권 제6호
발행연도
2010.12
수록면
766 - 773 (8page)

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Membrane structures are widely used for constructing large space such as gymnasium and stadiums. The use of sound absorption membrane system are increasing in stadiums and arenas, however research on the sound absorption characteristics were not so much investigated. Kiyama (1996), Hashimoto (1996) and Sakagami (2005) conducted theoretical studies on the sound absorption and sound insulation properties of single and double leaf permeable membrane. In this study, sound absorption characteristics of each membrane were investigated by experiments in reverberation chamber. 4 types of permeable membranes and a non-permeable membrane were used for experiments. Air space behind membrane material and tension on the membrane was varied. Sound absorption performance of permeable membrane materials was investigated. As increasing air space behind the membrane material, sound absorption coefficient was increased. In a resonance absorption frequency band sound absorption coefficient varied more dramatically. Sound absorption characteristics were flat in mid and high frequency range and sound absorption coefficient was from 0.3 to 0.5. Also sound absorption coefficient was increased by the increment of surface density and air permeability of membrane. However, over the certain value of air permeability and surface density sound absorption coefficient was decreased. These results can be used as design factors and method for the room acoustic design of dome-stadiums and large free-form buildings.

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Abstract
1. 서론
2. 막재료의 음향성능 관련 연구
3. 막재료 흡음성능
4. 결론
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UCI(KEPA) : I410-ECN-0101-2012-590-004164832