Transient Response of Annular Sandwich Plate with Functional Graded Core Combined with Piezoelectric Layers

Document Type : Research Article

Authors

1 Department of Mechanic , University Campus 2, University of Guilan, Rasht, Iran

2 professor, Department of Dynamic-Control , Faculty of Mechanic, University of Guilan, Rasht, Iran

3 assistant professor, Department of Dynamic-Control , Faculty of Mechanic, University of Guilan, Rasht, Iran

Abstract

In this study, the transient response of the symmetric annular sandwich plate, with functionally graded core and piezoelectric layers, is investigated. It is also assumed that the sandwich plate is under external harmonic force and electrical voltage. Based on the power function model, it is assumed that the properties of the core material vary in the direction of the core thickness. To express the displacement field, the third order shear deformation theory is used. By use of the Hamilton principle, the structural equations are obtained in terms of displacement components and solved using the differential quadrature method. Finally, the time response is evaluated in terms of variations in effective parameters such as internal radius, power function index, core thickness and external voltage. The simulation results showed that the amplitude of the oscillations decreases when the internal radius of plate to be increased, in the desired time interval. In addition, by increasing the index parameter of the power function, the time response range increases. Finally, by applying external electrical voltage, the vibration amplitude of plate reduced and this advantage is used in control of vibrating systems.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 12
March 2021
Pages 3485-3502

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