Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2004.11a
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- Pages.1052-1055
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- 2004
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- 1598-2548(pISSN)
An Experimental Study on the Grazing Incidence Sound Absorption of a Perforated Panel System
다공판 시스템의 접선입사 흡음성능에 관한 실험적 연구
Abstract
This paper introduces an experimental study on the grazing incidence sound absorptions for duct silencers filed with a glass wool and consisted of a perforated panel. The experimental results are discussed in comparison with the normal incidence sound absorption. And also the transmission loss for duct silencers are measured and compared with the sound absorption performances. From the experimental results, it is shown that the resonance frequency bandwidth on the transmission loss and sound absorption coefficient for duct silencers has a good agreement.
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