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Analysis of a cylindrical micro-perforated resistive silencer
Scania AB, Sweden.ORCID iD: 0000-0002-3826-3055
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Flow acoustics.ORCID iD: 0000-0003-1604-8263
2013 (English)In: 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life, OAL-Osterreichischer Arbeitsring fur Larmbekampfung , 2013, 5867-5876 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an analytical wave decomposition model for predicting the transmission loss a cylindrical silencer with both annular and baffled micro-perforated screens. Numerical simulation shows the fundamental characteristics as well as the potential to achieve large attenuation using micro-perforations. The numerical model is verified by measurements using the 2-microphone technique and shown to be a useful tool in practical design. Clear from the analysis is the sensitivity of the micro-perforated silencer to changes in both porosity and overall layout.

Place, publisher, year, edition, pages
OAL-Osterreichischer Arbeitsring fur Larmbekampfung , 2013. 5867-5876 p.
Keyword [en]
Numerical models, Fundamental characteristics, Micro-perforations, Transmission loss, Wave decomposition, Acoustic variables control
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-151079Scopus ID: 2-s2.0-84904498254ISBN: 978-163266267-5 (print)OAI: oai:DiVA.org:kth-151079DiVA: diva2:746890
Conference
42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013, 15 September 2013 through 18 September 2013, Innsbruck, Austria
Note

QC 20160122

Available from: 2014-09-15 Created: 2014-09-15 Last updated: 2016-01-22Bibliographically approved

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Glav, RagnarFärm, Anna

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CiteExportLink to record
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  • apa
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  • ieee
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  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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