Oscillations of a hollow piezoceramic cylinder excited by a system of surface electrodes

D. I. Bardzokas; M. L. Filshtinsky; R. Rodriguez-Ramos; O. Sanchez-Casals

D. I. Bardzokas National Technical University of Athens
M. L. Filshtinsky State University of Sumy
R. Rodriguez-Ramos University of Havana
O. Sanchez-Casals Institute of Cybernetics

Abstract

An antiplane mixed boundary problem of electro elasticity for a hollow piezoelectric cylinder with an arbitrary system of active surface electrodes exciting its oscillations is considered. The solution is carried out on the basis of the approach developed in [4] for investigation of the oscillations of a solid piezoceramic cylinder with a given system of active surface electrodes. Results of numerical realization of the obtained algorithm characterizing amplitude-frequency features of the cylinder and also the behaviour of electro elastic quantities in the cylinder area and on the boundary are given.

Keywords

References

[1] D. Bardzokas, B.A. Kudryavtsev, N.A. Senik. Criteria of electromechanical fracture of piezoelectrics initiated by electrode edges. Strength of Materials, 7: 510-513, 1994.
[2] D. Bardzokas, B.A. Kudryavtsev, N.A. Senik. The Rayleigh waves in a half-space with a finite system of surface electrodes Mech. of Solids, No.1, 45-51, 1996.
[3] D. Bardzokas, N.A. Senik. The excitation of symmetric and antisymmetric Lamb waves in a piezoelectric strip by surface electrodes J. Appl. Mech., 57(6), 1047- 1055, 1993.
[4] M.L. Filshtinsky, D. Bardzokas. Boundary integral equation method in diffraction problems of electroelastic waves (in Russian). Proceedings of University of Sumy, p. 194. Sumy, 1999.
[5] B.A. Kudryavtsev. Electroelastic state of a half-plane from piezoceramics with two boundary electrodes. Probl. Proehnosti, 7: 56-59, 1982.