Title: Optimization of perforated plates in interaction with acoustic waves
Authors: Lukeš, Vladimír
Rohan, Eduard
Citation: LUKEŠ, V., ROHAN, E. Optimization of perforated plates in interaction with acoustic waves. In Proceedings of ISMA2018 - International Conference on Noise and Vibration Engineering. Leuven: KU Leuven, 2018. s. 4585-4596. ISBN: 978-90-73802-99-5
Issue Date: 2018
Publisher: KU Leuven
Document type: konferenční příspěvek
URI: 2-s2.0-85060370489
ISBN: 978-90-73802-99-5
Keywords in different language: vibroacoustics;optimization;Reissner-Mindlin theory
Abstract in different language: The paper deals with optimization of a perforated plate which interacts with acoustic waves propagating in an inviscid compressible fluid. In general, the aim is to influence the acoustic signal conducted through a waveguide in which the perforated plate is fitted. Nonlocal transmission conditions have been derived by homogenization of a problem describing vibroacoustic fluid-structure interactions in a fictitious layer in which the plate is embedded. The Reissner-Mindlin theory of plates is adopted for periodic perforations designed by arbitrary cylindrical holes For rigid plates, quite general types of perforations can be considered for which homogenized transmission coefficients reveal coupling of the transverse and tangential waves. For both the rigid and the deformable plates, the homogenized model of the vibroacoustic transmission has been derived using the two-scale asymptotic analysis. The design of the holes perforating the plate is parameterized by the B-spline representation of the reference periodic cell generating the transmission layer.
Rights: Plný text není přístupný.
© KU Leuven
Appears in Collections:Konferenční příspěvky / Conference Papers (KME)

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