노후 방음벽의 리모델링을 위한 타공형 리모델링 패널의 흡음성능 평가 (Evaluation of the Sound Absorption Performance of Perforated Remodeling Panel for the Remodeling of Deteriorated Noise Barrier)

서지정보

· 발행기관 : 한국생태환경건축학회
· 수록지 정보 : KIEAE Journal / 18권 / 4호 / 79 ~ 85페이지
· 저자명 : 윤제원, 장태순

초록

Purpose: The purpose of this study is to evaluate the sound absorption performance for the field application of perforated remodeling panel installed for remodeling of deteriorated absorptive soundproofing panel. Method: In order to evaluate the sound absorption performance of remodeling panel, the sound absorption performance of the double layer sound absorbing system attached with the perforated remodeling panel was predicted using 4 pole parameter, and the sound absorption coefficient was measured in reverberation room. And the evaluation of the sound absorption performance for the field application of the perforated remodeling panel was conducted through various design parameter analysis. Result: The perforated rate of the perforated remodeling panel should be at least 20% so that the sound absorption performance did not deteriorate even at a high frequency component of 4 kHz or more. In addition, the thickness of the air layer and the airflow resistivity of the polyester installed in place of the air cavity hardly affected the sound absorption performance. And, sound absorption performance can be improved even with high frequency components by installing a sound absorption materials between the deteriorated absorptive soundproofing panel and the perforated remodeling panel having more than 20% perforated rate.

영어초록

Purpose: The purpose of this study is to evaluate the sound absorption performance for the field application of perforated remodeling panel installed for remodeling of deteriorated absorptive soundproofing panel. Method: In order to evaluate the sound absorption performance of remodeling panel, the sound absorption performance of the double layer sound absorbing system attached with the perforated remodeling panel was predicted using 4 pole parameter, and the sound absorption coefficient was measured in reverberation room. And the evaluation of the sound absorption performance for the field application of the perforated remodeling panel was conducted through various design parameter analysis. Result: The perforated rate of the perforated remodeling panel should be at least 20% so that the sound absorption performance did not deteriorate even at a high frequency component of 4 kHz or more. In addition, the thickness of the air layer and the airflow resistivity of the polyester installed in place of the air cavity hardly affected the sound absorption performance. And, sound absorption performance can be improved even with high frequency components by installing a sound absorption materials between the deteriorated absorptive soundproofing panel and the perforated remodeling panel having more than 20% perforated rate.

참고자료

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