Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2002.11a
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- Pages.388.1-388
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- 2002
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- 1598-2548(pISSN)
A Study on the Sound Absorption of Multiple Layer Perforated Plate Systems Combined with Porous absorbing Materials
다공성 흡음재가 조합된 다중 다공판 시스템의 흡음성능에 관한 연구
- Heo, Sung-Wook (Dept.of Mechanical Engineering, Industry Graduate School of Seoul National University of Technology) ;
- Lee, Dong-Hoon ;
- Kim, Wook ;
- Kwon, Young-Pil (Dept.of Mechanical Engineering, Soongsil University)
- Published : 2002.11.01
Abstract
The sound absorption coefficients for multiple layer perforated plate systems containing several companments with airspaces and porous absorbing materials are estimated using the transfer matrix method developed in the previous paper. The absorption coefficients from transfer matrix method agree well with the values measured by the two-microphone impedance tube method fur various combinations of perforated Plates, airspaces or porous materials. (omitted)
Keywords