FLEXURAL VIBRATION IN A FINITE PIEZOELECTRIC HOLLOW CYLINDER OF CLASS6MM

In this study, the flexural vibration in a finite piezoelectric circul ar hollow cylinder belonging to crystal class 6mm is considered. Both the inner and outer curved surfaces and the end plane surfaces are fre e from traction and electric potential. Solutions for the mechanical d isplacements and the electric potential are derived in a series form. Boundary conditions on shear stress are satisfied exactly term by term in the series and the remaining boundary conditions are satisfied by an orthogonalization procedure. Numerical analysis is carried out for the piezoelectric ceramic PZT4. The natural frequencies are calculated for the circular modes one and two and presented graphically. (C) 199 6 Acoustical Society of America.