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Modelling perforates in mufflers using two-ports
Sound and Vibration Lab., Faculty of Engineering, Ain Shams University.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.ORCID-id: 0000-0001-7898-8643
2005 (engelsk)Inngår i: 12th International Congress on Sound and Vibration 2005: ICSV 2005, 2005, s. 2294-2301Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

One of the main sources of noise of a vehicle is the engine where its noise is usually damped by means of acoustic mufflers. A very common problem in the modeling of automotive mufflers is that of two flow ducts coupled through a perforate. A new segmentation approach is developed here based on two-port analysis techniques, in order to model perforated pipes using general two-port codes which are widely available. Examples are given for simple muffler configurations and the convergence of the technique is investigated based on the number of segments used. The results are compared with closed form solutions form the literature. Finally, an analysis of a complicated multi-chamber perforated muffler system is presented. The two-port simulation results show good agreement with both the measurements, and the simulations using the classical four-port elements.

sted, utgiver, år, opplag, sider
2005. s. 2294-2301
Serie
12th International Congress on Sound and Vibration 2005 ; Vol. 3
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-148564Scopus ID: 2-s2.0-84881598723ISBN: 978-162748149-6 (tryckt)OAI: oai:DiVA.org:kth-148564DiVA, id: diva2:736991
Konferanse
12th International Congress on Sound and Vibration 2005, ICSV 2005; Lisbon, Portugal, 11-14 July, 2005
Merknad

QC 20140811

Tilgjengelig fra: 2014-08-11 Laget: 2014-08-08 Sist oppdatert: 2014-08-11bibliografisk kontrollert

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Åbom, Mats

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Totalt: 156 treff
RefereraExporteraLink to record
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  • apa
  • harvard1
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
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Utmatningsformat
  • html
  • text
  • asciidoc
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