About: Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics

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About: Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Aimed at describing the harmonic acoustic waves passage through an exhaust system, the two-tailpipes terminal muffler may be seen as an acoustic element defined by eight quantities (usually arranged in a 2 by 4 matrix). The quantities make up a complex functions depending on the frequency of the wave motion. The engine speed is a variable that can be regarded as another parameter. This contribution presents a procedure how to establish the quantities coming from the suggested mathematical model and using the finite element method. In addition, formulae are derived for calculation of the terminal muffler attenuation based on the indicated characteristics. Finally, the attenuation characteristics of the terminal muffler are presented and mutually compared for several design options of the mufflers which indeed are different with respect to their geometry but have identical topology of the chambers and tailpipes. Aimed at describing the harmonic acoustic waves passage through an exhaust system, the two-tailpipes terminal muffler may be seen as an acoustic element defined by eight quantities (usually arranged in a 2 by 4 matrix). The quantities make up a complex functions depending on the frequency of the wave motion. The engine speed is a variable that can be regarded as another parameter. This contribution presents a procedure how to establish the quantities coming from the suggested mathematical model and using the finite element method. In addition, formulae are derived for calculation of the terminal muffler attenuation based on the indicated characteristics. Finally, the attenuation characteristics of the terminal muffler are presented and mutually compared for several design options of the mufflers which indeed are different with respect to their geometry but have identical topology of the chambers and tailpipes. (en)
Title	Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics (en)
skos:prefLabel	Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics (en)
skos:notation	RIV/49777513:23640/09:00501685!RIV10-MSM-23640___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M06031)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Voldřich, Josef Matas, Richard Kňourek, Jindřich
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Nové technologie - výzkumné centrum
http://linked.open...dnocenehoVysledku	319401
http://linked.open...ai/riv/idVysledku	RIV/49777513:23640/09:00501685
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	acoustics; attenuation; muffler geometry; transfer matrix (en)
http://linked.open.../riv/klicoveSlovo	acoustics attenuation transfer matrix muffler geometry
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8EF4BE67F55D]
http://linked.open...i/riv/nazevZdroje	Applied and Computational Mechanics
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Materials and components for environment protection
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	3
http://linked.open...iv/tvurceVysledku	Matas, Richard Voldřich, Josef Kňourek, Jindřich
issn	1802-680X
number of pages	12 (xsd:int)
http://localhost/t...ganizacniJednotka	23640
is http://linked.open...avai/riv/vysledek of	Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics Influence of the terminal muffler geometry with three chambers and two tailpipes topology on its attenuation characteristics

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