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Finite element piezothermoelasticity analysis and the active control of FGM plates with integrated piezoelectric sensors and actuators

By KM Liew, XQ He, TY Ng and S Kitipornchai

Abstract

An efficient finite element model is presented for the static and dynamic piezothermoelastic analysis and control of FGM plates under temperature gradient environments using integrated piezoelectric sensor/actuator layers. The properties of an FGM plate are functionally graded in the thickness direction according to a volume fraction power law distribution. A constant displacement-cum-velocity feedback control algorithm that couples the direct and inverse piezoelectric effects is applied to provide active feedback control of the integrated FGM plate in a closed loop system. Numerical results for the static and dynamic control are presented for the FGM plate, which consists of zirconia and aluminum. The effects of the constituent volume fractions and the influence of feedback control gain on the static and dynamic responses of the FGM plates are examined

Topics: vibration control, smart structures, piezoelectric sensors/actuators, FGM plates, finite element method, Composite Plates, Optimum Design, Vibration, Systems, Shells, 1703 Computational Theory and Mathematics, 2210 Mechanical Engineering, 2212 Ocean Engineering, 2604 Applied Mathematics, 2605 Computational Mathematics
Publisher: 'Springer Science and Business Media LLC'
Year: 2003
DOI identifier: 10.1007/s00466-003-0437-0
OAI identifier: oai:espace.library.uq.edu.au:UQ:683126
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