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Core and patch position optimizations for vibration control of piezolaminated structures

2005Journal article Open access
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dc.contributor.authorMoita, José Mateus Simõespt_PT
dc.contributor.authorCorreia, Victorpt_PT
dc.contributor.authorSoares, Cristovão M. Motapt_PT
dc.contributor.authorSoares, Carlos A. Motapt_PT
dc.date.accessioned2009-02-13T17:10:04Z
dc.date.available2009-02-13T17:10:04Z
dc.date.issued2005
dc.description.abstractThis paper deals with a finite formulation baserd on the classical laminated plate tehory, for active control of thin late laminated structures with integrated piezoelectric layers, acting as sensors and actuators. The control is initialized through a previuos optimization of the core of the laminated structure, in order to minimize the vibration amplitude. Also the optimization of the patches position in performed to maximize the piezoelectric actuator efficiency. the simulating annealing mthod is used for these purposes. The finite element model is a single layer triangular nonconforming plate/shell element with 18 degrees of fredom for the generalized displacements, and one electrical potential degree of freedom for each piezoelectric element layer, wich can be surface bonded or imbedded on the laminate. To achieve a mechanism of active control of the structure dynamic response, a feedback control algorirhm is used, coupling the sensor and active piezoelectric layers. To calculate the dynamic response of the laminated structures the Newmark method is considered. The model is applied in the solution of an illustrative case and the results are presented and discussed.pt_PT
dc.formatapplication/pdfpt_PT
dc.identifier.citation6th World Congresses of Structural and Multidisciplinary Optimization. - Rio de Janeiro, 30 May-3 June 2005. - 5 fpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.1/174
dc.language.isoengpt_PT
dc.publisherRio de Janeiropt_PT
dc.relation.urihttp://www.bib.ualg.pt/artigos/DocentesEST/MOICor.pdfpt_PT
dc.rights.uriopenAccessen
dc.subjectElementos finitospt_PT
dc.subject620pt_PT
dc.titleCore and patch position optimizations for vibration control of piezolaminated structurespt_PT
dc.typejournal article
dspace.entity.typePublication
rcaap.typearticlept_PT

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