Finite-amplitude standing waves in optimized acoustic resonators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00210634" target="_blank" >RIV/68407700:21230/13:00210634 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Finite-amplitude standing waves in optimized acoustic resonators

Popis výsledku v původním jazyce

he paper deals with optimization of the shape of an axisymme tric acoustic resonator in order that acoustic pressure were maximized at one of its ends. In c omparison to the previously pub- lished studies, the resonator shape description is not rest ricted to an elementary function, it is rather described using a set of control points interconnect ed with splines allowing a wide vari- ety of possible shapes. In the first approximation, acoustic field in a shaped cavity is described using the quasi-one-dimensional Webster?s equation suppl emented with a term accounting for thermoviscous attenuation. A heuristic algorithm based on Evolution strategies is proposed for determination of the control points positions resultin g in maximum acoustic pressure inthe case of a piston or shaker driving of the resonator cavity . Numerical simulations show that the optimum shapes differ for individual methods of driving , they are rather simple, differ from the previously proposed shapes and possess

Název v anglickém jazyce

Finite-amplitude standing waves in optimized acoustic resonators

Popis výsledku anglicky

he paper deals with optimization of the shape of an axisymme tric acoustic resonator in order that acoustic pressure were maximized at one of its ends. In c omparison to the previously pub- lished studies, the resonator shape description is not rest ricted to an elementary function, it is rather described using a set of control points interconnect ed with splines allowing a wide vari- ety of possible shapes. In the first approximation, acoustic field in a shaped cavity is described using the quasi-one-dimensional Webster?s equation suppl emented with a term accounting for thermoviscous attenuation. A heuristic algorithm based on Evolution strategies is proposed for determination of the control points positions resultin g in maximum acoustic pressure inthe case of a piston or shaker driving of the resonator cavity . Numerical simulations show that the optimum shapes differ for individual methods of driving , they are rather simple, differ from the previously proposed shapes and possess

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F12%2F1925" target="_blank" >GAP101/12/1925: Nové metody generování a využití stojatých zvukových vln konečných amplitud</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the ICSV20

ISBN

978-616-551-682-2

ISSN

2329-3675

e-ISSN

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Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

International Institute of Acoustics and Vibration

Místo vydání

Auburn

Místo konání akce

Bangkok

Datum konání akce

7. 7. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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