000022861 001__ 22861 000022861 005__ 20220110134530.0 000022861 04107 $$aeng 000022861 046__ $$k2018-05-14 000022861 100__ $$aRohan, E. 000022861 24500 $$aAcoustic wave transmission on homogenized perforated plate 000022861 24630 $$n24.$$pEngineering Mechanics 2018 000022861 260__ $$bInstitute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague 000022861 506__ $$arestricted 000022861 520__ $$2eng$$aWe consider problems of the acoustic wave propagation in an inviscid fluid through a rigid periodically perforated plate. Using the homogenization method the wave propagation in a layer containing the plate is replaced by transmission conditions which couple the acoustic field on both sides of the plate represented by a flat interface. The interface impedance depends of the shape of the perforation. For suitable shapes of the holes, there is a coupling between transverse and surface acoustic waves propagating along the panel. The derived model leads to a significant savings in the computational cost of the numerical solutions. 000022861 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000022861 653__ $$aacoustic transmission, homogenization, acoustic impedance, perforated plate 000022861 7112_ $$aEngineering Mechanics 2018$$cSvratka, CZ$$d2018-05-14 / 2018-05-17$$gEM2018 000022861 720__ $$aRohan, E.$$iLukeš, V. 000022861 8560_ $$ffischerc@itam.cas.cz 000022861 8564_ $$s724838$$uhttps://invenio.itam.cas.cz/record/22861/files/713.pdf$$yOriginal version of the author's contribution in proceedings, page , section DYN. 000022861 962__ $$r21225 000022861 980__ $$aPAPER