Multimodal and omnidirectional beam splitters for Lamb modes in elastic plates
Source abstract
Abstract
Omnidirectional beam splitters for the simultaneous control of the three fundamental Lamb modes in an elastic plate are designed and numerically studied. Beam splitters consist in radially symmetric and inhomogeneous lenses designed to redirect the incoming energy towards a given angle. In this work, these devices are designed by means of graded phononic crystals combined with thickness variations of the plate. Numerical simulations are presented to show the performance of the designed devices.
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Research context
OpenAlex topics: Acoustic Wave Phenomena Research · Aerodynamics and Acoustics in Jet Flows · Metamaterials and Metasurfaces Applications
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Affiliations
Université de Lille 1 1 Institut d’Electronique, de Microélectronique et de Nanotechnologie, UMR CNRS 8520, , Villeneuve d’Ascq 59650, France
Tongji University 2 School of Aerospace Engineering and Applied Mechanics, , 100 Zhangwu Road, Shanghai 200092, China
Université de Bordeaux 3 Centre de Recherche Paul Pascal, UPR 8641, , 115 Avenue Schweitzer, 33600 Pessac, France
Funding
IdEx Bordeaux · LabEx AMADEus · China Scholarship Council · Agence Nationale de la Recherche
References (26)
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