Exact free vibration analysis of sector plates coupled with piezoelectric layers using first-order shear deformation plate theory

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Abstract

In this study, free vibration analysis of isotropic sector plates coupled with piezoelectric layers based on first-order shear deformation theory has been analyzed. Governing differential equations of the dynamic behavior of free vibration of isotropic sector plates coupled with piezoelectric layers are derived using Hamilton's principle and the electrostatic Maxwell equations. The Coupled governing differential equations of the vibrating composite plate are solved by applying the method of separation of variables and auxiliary potential functions. The presented analytical exact solution in this paper is validated with available data in the literature. Using numerical results the effect of opening angle of sector plate , the host thickness to radius ratios , inner to outer radius ratios , the ratio of thickness of the piezoelectric layer respect to thickness of the host plate and different boundary conditions on the natural frequencies of the vibrating sector plates coupled with piezoelectric layers are obtained. Also impact, manner and conditions of each parameter on the natural frequencies areconsidered and discussed.

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References

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Journal of Solid and Fluid Mechanics
Volume 6, Issue 4
January and February 2016
Pages 125-138

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