Homogenization of the vibro-acoustic transmission on perforated reissner-mindlin plate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F11%3A43899229" target="_blank" >RIV/49777513:23520/11:43899229 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Homogenization of the vibro-acoustic transmission on perforated reissner-mindlin plate
Original language description
The paper deals with homogenization of the fluid-structure coupling in the vibro-acoustic problem. We consider a perforated plate of the Reissner-Mindlin (R-M) type surrounded by the acoustic fluid. As the main result, we present a homogenized model of the vibro-acoustic transmission which takes into account specific shapes of the holes in the plate. The model is derived by homogenizing a layer of thickness epsilon, which is determined by the mean-surface of the plate. The perforation is epsilon-periodic. For a given wave frequency, using the periodic unfolding method, we perform the asymptotic analysis epsilon ? 0 of the coupled system involving the Helmholtz equation and the R-M plate equations. The homogenized transmission equations involve coeficients which are calculated using solutions to microscopic problems defined in the reference cell representing the geometry. For validation of the approach, we present examples which demonstrate influence of the perforation design on the glo
Czech name
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Czech description
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Project
<a href="/en/project/GA101%2F07%2F1471" target="_blank" >GA101/07/1471: Finite element modelling of linear, non-linear and multiscale effects in wave propagation in solids and heterogeneous media</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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