Analysis of a cylindrical micro-perforated resistive silencer
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 (Refereed)
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.
Numerical models, Fundamental characteristics, Micro-perforations, Transmission loss, Wave decomposition, Acoustic variables control
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-151079ScopusID: 2-s2.0-84904498254ISBN: 978-163266267-5OAI: oai:DiVA.org:kth-151079DiVA: diva2:746890
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
QC 201601222014-09-152014-09-152016-01-22Bibliographically approved