Modeling of a one-dimensional acoustic device composed of a planar beam and fluid gap with discontinuity in thickness
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F17%3A00317523" target="_blank" >RIV/68407700:21260/17:00317523 - isvavai.cz</a>
Výsledek na webu
<a href="https://asa.scitation.org/doi/abs/10.1121/2.0000838" target="_blank" >https://asa.scitation.org/doi/abs/10.1121/2.0000838</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1121/2.0000838" target="_blank" >10.1121/2.0000838</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Modeling of a one-dimensional acoustic device composed of a planar beam and fluid gap with discontinuity in thickness
Popis výsledku v původním jazyce
Precise modeling of 1D acoustic devices (passive or active, miniaturized or not) containing a planar beam loaded by a fluid gap and cavities is of interest in a variety of applications (transducers, acoustic filters, metamaterials, etc.). An analytical approach presented herein enables to describe the vibration of the planar elastically supported rigid beam of rectangular crossection surrounded by very thin slits and loaded by the fluid gap, which is divided in three parts of different thicknesses (the central part being the thinner one), the thermoviscous losses originating in the fluid being taken into account. Comparing to the case of the fluid gap of uniform thickness, such a geometry provides more parameters which can be adjusted in order to achieve the required behavior (resonant or damped, etc.). The analytically calculated beam displacement is presented and compared to the numerical solution provided by finite element method (a reference against which the analytical results are tested).
Název v anglickém jazyce
Modeling of a one-dimensional acoustic device composed of a planar beam and fluid gap with discontinuity in thickness
Popis výsledku anglicky
Precise modeling of 1D acoustic devices (passive or active, miniaturized or not) containing a planar beam loaded by a fluid gap and cavities is of interest in a variety of applications (transducers, acoustic filters, metamaterials, etc.). An analytical approach presented herein enables to describe the vibration of the planar elastically supported rigid beam of rectangular crossection surrounded by very thin slits and loaded by the fluid gap, which is divided in three parts of different thicknesses (the central part being the thinner one), the thermoviscous losses originating in the fluid being taken into account. Comparing to the case of the fluid gap of uniform thickness, such a geometry provides more parameters which can be adjusted in order to achieve the required behavior (resonant or damped, etc.). The analytically calculated beam displacement is presented and compared to the numerical solution provided by finite element method (a reference against which the analytical results are tested).
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20201 - Electrical and electronic engineering
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Proceedings of Meetings on Acoustics
ISBN
—
ISSN
1939-800X
e-ISSN
1939-800X
Počet stran výsledku
7
Strana od-do
1-7
Název nakladatele
Acoustical Society of America
Místo vydání
Melville
Místo konání akce
Boston
Datum konání akce
25. 6. 2017
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—