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Design of a passive electrical analogue for piezoelectric damping of a plate

Abstract : Vibrations of a mechanical structure can be reduced through a piezoelectric coupling to a passive electrical network exhibiting similar modal properties. For the control of a plate, the design of a two-dimensional analogous electrical network is considered. Depending on the mechanical boundary conditions, a finite difference formulation of the Kirchhoff-Love equation of motion shows that we need to ensure specific electrical connections along the edges of the analogous network. A numerical model involving an assembly of element matrices validates the electrical topology. Then, the passive electrical circuit is implemented with capacitors, inductors and transformers, whose practical design is closely described. Focusing on the analogue of a clamped plate, experiments prove the ability of the proposed electrical network to approximate the behavior of the mechanical structure.
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Contributor : Boris Lossouarn Connect in order to contact the contributor
Submitted on : Thursday, March 22, 2018 - 7:19:58 PM
Last modification on : Monday, August 17, 2020 - 5:26:03 PM
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Boris Lossouarn, Mathieu Aucejo, Jean-François Deü, Kenneth A. Cunefare. Design of a passive electrical analogue for piezoelectric damping of a plate. Journal of Intelligent Material Systems and Structures, SAGE Publications, 2017, 29 (7), pp.1301-1314. ⟨10.1177/1045389X17731232⟩. ⟨hal-01739210⟩



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