Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2004.05a
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- Pages.143-146
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- 2004
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- 1598-2548(pISSN)
A Study on the Sound Absorption of Periodically Folded Barriers
주기적 구조를 갖는 굴절형 방음판의 흡음성능에 관한 연구
Abstract
This study is aimed to numerically evaluate a sound absorption performance of periodically folded barriers. Based on the formulation for sound absorption of a locally reacting surface in a periodic arrangement, variations of the sound absorption with parameters such as the folded width and depth are investigated. In comparison with the sound absorption of a conventional barrier with a flat surface, it is found that the periodically folded barriers can achieve a higher sound absorption especially in the low frequency range.