Assessment of FGPM shunt damping for vibration reduction of laminated composite beams

M. Lezgy-Nazargah 1 S. M. Divandar 1 Philippe Vidal 2 Olivier Polit 2
1 Hakim Sabzevari University
2 LEME - Laboratoire Energétique Mécanique Electromagnétisme
Abstract : This work addresses theoretical and finite element investigations of functionally graded piezoelectric materials (FGPMs) for shunted passive vibration damping of laminated composite beams. The properties of piezoelectric patches are assumed to vary through the thickness direction following the exponent or power law distribution in terms of the volume fractions of the constituent materials. By employing Hamilton's principle, the governing differential equations of motion are derived. The resulting system of equations of vibration is solved by employing an efficient three-nodded beam element which is based on a refined sinus piezoelectric model. The effects of effective electromechanical coupling coefficients (EEMCCs), different electric shunt circuits and different material compositions on the shunted damping performance are investigated. The optimal values of the electric components belonging to each shunt circuit are numerically determined.
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M. Lezgy-Nazargah, S. M. Divandar, Philippe Vidal, Olivier Polit. Assessment of FGPM shunt damping for vibration reduction of laminated composite beams. Journal of Sound and Vibration, Elsevier, 2017, 389, pp.101-118. ⟨10.1016/j.jsv.2016.11.023⟩. ⟨hal-01676248⟩

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