DISPERSION PROPERTIES OF A COMPOSITE PLATE FROM INHOMOGENEOUS PIEZO- AND DIELECTRIC LAYERS

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详细

An approach to the study of the dispersion properties of a composite plate of inhomogeneous piezoelectric and dielectric layers is proposed. When modeling the heterogeneity of the layers, a two-component model was used with a functionally gradient change in properties from the parameters of the base material to the parameters of another one. The outer surfaces of the plate are assumed to be free from mechanical stresses. Electrically they can be either open and border on vacuum, or short-circuited. The surface of the dielectric layer is assumed to be open and borders on vacuum. On the example of the problem of shear, initiated by an infinitely distant source of harmonic oscillations of a plate, the influence of the nature of the inhomogeneity, its localization, and the size of the region of transition of one material into another on the dispersion properties of the structure in a wide frequency range is studied. The results of the study are presented in dimensionless parameters, presented in the form of graphs, and may be of particular interest in the development, design and optimization of functionally oriented materials and structures used in the creation of new micro- and nanoscale devices and devices based on surface acoustic SH waves with high performance characteristics.

作者简介

T. Belyankova

Federal Research Centre the Southern Scientific Centre of the Russian Academy of Sciences

Rostov-on-Don, Russian Federation

E. Vorovich

Don State Technical University

Rostov-on-Don, Russian Federation

V. Kalinchuk

Federal Research Centre the Southern Scientific Centre of the Russian Academy of Sciences

Email: kalin@ssc-ras.ru
Rostov-on-Don, Russian Federation

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