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dc.contributor.authorPadoin, Eduardopt_BR
dc.contributor.authorFonseca, Jun Sergio Onopt_BR
dc.contributor.authorPerondi, Eduardo Andrépt_BR
dc.contributor.authorMenuzzi, Odairpt_BR
dc.date.accessioned2016-06-03T02:08:35Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn1679-7825pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/142264pt_BR
dc.description.abstractThis work presents a new methodology for the parametric optimization of piezoelectric actuators installed in laminated composite structures, with the objective of controlling structural vibrations. Problem formulation is the optimum location of a Macro Fiber Composite (MFC) actuator patch by means the maximization of the controllability index. The control strategy is based on a Linear Quadratic Regulator (LQR) approach. For the structural analysis, the modeling of the interaction between the MFC and the structure is made taking into account the active material as one of the orthotropic laminate shell layers. The actuation itself is modeled as an initial strain arising from the application of an electric potential which deforms the rest of the structure. Thereby, modeling the electric field and the electromechanical coupling within the actuator is avoided because these effects are considered analytically. Numerical simulations show that the structural model presents good agreement with numerical and experimental results. Furthermore, the results show that optimizing the location of the actuator in the structure helps the control algorithm to reduce induced structural vibration.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofLatin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro. Vol. 12, no. 5 (May 2015), p. 925-947pt_BR
dc.rightsOpen Accessen
dc.subjectMateriais piezoelétricospt_BR
dc.subjectParametric optimizationen
dc.subjectMacro fiber compositeen
dc.subjectControle ótimopt_BR
dc.subjectEstruturas (Engenharia)pt_BR
dc.subjectLQR optimal controlen
dc.subjectLaminated composite materialen
dc.titleOptimal placement of piezoelectric macro fiber composite patches on composite plates for vibration suppressionpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000988664pt_BR
dc.type.originNacionalpt_BR


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