Proceedings Vol. 24 (2018)
ENGINEERING MECHANICS 2018
May 14 – 17, 2018, Svratka, Czech Republic
Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague
ISBN 978-80-86246-91-8 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 713 - 716, full text
We 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.
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All papers were reviewed by members of the scientific committee.