Název:	Optimization of perforated plates in interaction with acoustic waves
Autoři:	Lukeš, Vladimír Rohan, Eduard
Citace zdrojového dokumentu:	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
Datum vydání:	2018
Nakladatel:	KU Leuven
Typ dokumentu:	konferenční příspěvek conferenceObject
URI:	2-s2.0-85060370489 http://hdl.handle.net/11025/33825
ISBN:	978-90-73802-99-5
Klíčová slova v dalším jazyce:	vibroacoustics;optimization;Reissner-Mindlin theory
Abstrakt v dalším jazyce:	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.
Práva:	Plný text není přístupný. © KU Leuven
Vyskytuje se v kolekcích:	Konferenční příspěvky / Conference Papers (KME) OBD

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