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Application of Micro-Perforated Panels to Attenuate Noise in a Duct
Technical Paper
2007-01-2196
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The sound attenuation performance of microperforated panels (MPP) with adjoining air cavity is demonstrated. First of all, simulated results are shown based upon Maa's work investigating the parameters which impact MPP performance [1]. It is shown that the most important parameter is the depth of the adjoining cavity. Following this, an experimental study was undertaken to compare the performance of an MPP to that of standard foam. Following this, two strategies to improve the MPP performance are implemented. These include partitioning the air cavity and having a cavity with varying depth. Both strategies show a marked improvement in MPP attenuation.
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Authors
Citation
Liu, J., Herrin, D., and Seybert, A., "Application of Micro-Perforated Panels to Attenuate Noise in a Duct," SAE Technical Paper 2007-01-2196, 2007, https://doi.org/10.4271/2007-01-2196.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
- Maa, D. 1997 “General Theory and Design of Microperforated-Panel Absorbers” Acta Acustica 22 5 385 393
- Fuchs, H.V Zha, X. 1997 “Acrylic-Glass Sound Absorbers in the Plenum of the Deutscher Bundestag” Applied Acoustics 51 2 211 17
- Maa, D. 1996 “Microperforated Panel at High Sound Intensity” Acta Acustica 21 1 10 14
- Fuchs, H.V Zha, X. 1997 Patent No. 19975700527: Sound-Absorbing Glass Building Component or Transparent Synthetic Glass Building Component
- Wood, K. B. 2005 Patent No. 20050104245: Process of Forming a Microperforated Polymeric Film for Sound Absorption
- Maa, D. 1998 “Potential of Microperforated Panel Absorber” Journal of the Acoustical Society of America 104 5 2861 2866
- Maa, D. 1987 “Microperforated-Panel Wideband Absorbers” Noise Control Engineering Journal 29 77 84
- Wu, M. Q. 1997 “Microperforated panels for duct silencing,” Noise Control Eng. J. 45 69 77
- Pfretzschner J. 2006 “Microperforated insertion units: an alternative strategy to design Microperforated panels” Applied Acoustics 67 62 73
- ASTM Standard E1050-98 Standard Test Method for Impedance and Absorption of Acoustical Material Using a Tube, Two Microphones and a Digital Frequency Analysis System
- Larsson, G. 2006 “Reducing engine noise with an enclosure using miro perforated plate” Euronoise Conference 2006 Tampere,Finland
- Yairi, M. 2005 “Acoustical properties of Microperforated panel absorbers with various configurations of the back cavity” ICSV12 2005 Lisbon
- Astley R.J. 1987 “A comparative note on the effects of local versus bulk reaction models for air moving ducts lined on all sides” Journal of sound and vibration 117 l 191 197
- Jiang, W. 2006 “Some numerical experimental study of microperforated panel acoustic absorbers with heterogeneous cavities” ICSV13 2006 Vienna, Austria
- Tao, Z. Zhang, B. Herrin, D. W. Seybert, A. F. 2005 “Prediction of Sound-Absorbing Performance of Micro-Perforated Panels Using the Transfer Matrix Method” SAE 2005 Noise and Vibration Conference Traverse City, MI
- Sum, K. S. 2006 “Use of parallel Microperforated panel subabsorbers for noise control in ducts” ICSV13 2006 Vienna, Austria