About: Shape sensitivity analysis for the optimal perforation problem in acoustic transmission

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We consider the acoustic transmission through perforated interface separating two halfspaces occupied by the acoustic medium. Recently the homogenized transmission conditions were obtained as the two-scale homogenization limit of the standard acoustic problem imposed in the layer perforated by a sieve-like obstacle with periodic structure. The limit model involves homogenized impedance coecients depending on the so-called microscopic problems; these are imposed in the reference computational cell, Y embedding obstacle S the shape of which can be designed. We focus on the sensitivity of the homogenized coecients w.r.t. shape modication of the perforation represented by S; sensitivity formulas are reported and illustrated by numerical examples. This research will contribute to the complex tasks, such as minimization of the transmission loss computed in a domain embedding this perforated interface. We consider the acoustic transmission through perforated interface separating two halfspaces occupied by the acoustic medium. Recently the homogenized transmission conditions were obtained as the two-scale homogenization limit of the standard acoustic problem imposed in the layer perforated by a sieve-like obstacle with periodic structure. The limit model involves homogenized impedance coecients depending on the so-called microscopic problems; these are imposed in the reference computational cell, Y embedding obstacle S the shape of which can be designed. We focus on the sensitivity of the homogenized coecients w.r.t. shape modication of the perforation represented by S; sensitivity formulas are reported and illustrated by numerical examples. This research will contribute to the complex tasks, such as minimization of the transmission loss computed in a domain embedding this perforated interface. (en)
Title	Shape sensitivity analysis for the optimal perforation problem in acoustic transmission Shape sensitivity analysis for the optimal perforation problem in acoustic transmission (en)
skos:prefLabel	Shape sensitivity analysis for the optimal perforation problem in acoustic transmission Shape sensitivity analysis for the optimal perforation problem in acoustic transmission (en)
skos:notation	RIV/49777513:23520/09:00501595!RIV10-MSM-23520___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/07/1471), Z(MSM4977751303)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Rohan, Eduard Lukeš, Vladimír
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Fakulta aplikovaných věd
http://linked.open...dnocenehoVysledku	341037
http://linked.open...ai/riv/idVysledku	RIV/49777513:23520/09:00501595
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	linear acoustics; homogenization; transmission condition; sensitivity analysis (en)
http://linked.open.../riv/klicoveSlovo	homogenization sensitivity analysis linear acoustics transmission condition
http://linked.open...ontrolniKodProRIV	[85C0FB917D8F]
http://linked.open...v/mistoKonaniAkce	Lisabon
http://linked.open...i/riv/mistoVydani	Lisboa
http://linked.open...i/riv/nazevZdroje	WCSMO-8
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Finite element modelling of linear, non-linear and multiscale effects in wave propagation in solids and heterogeneous media
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Lukeš, Vladimír Rohan, Eduard
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-06-05 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Predikce poruch heterogenních materiálů, komponent mechanických a biomechanických systémů.
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	APMTAC
https://schema.org/isbn	978-989-20-1554-5
http://localhost/t...ganizacniJednotka	23520
is http://linked.open...avai/riv/vysledek of	Shape sensitivity analysis for the optimal perforation problem in acoustic transmission Shape sensitivity analysis for the optimal perforation problem in acoustic transmission Shape sensitivity analysis for the optimal perforation problem in acoustic transmission Shape sensitivity analysis for the optimal perforation problem in acoustic transmission

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