Torsional oscillations of a finite inhomogeneous piezoelectric cylindrical shell

Torsional wave motion of a finite right circular cylindrical shell of inhomogeneous piezoelectric material of (622) crystal class under time dependent electric potential on the boundary is investigated. The inhomogeneity is restricted to the variations of density and other physical constants of the medium as expf((r)) where f is a suitable function of the radial distance. Two related problems, investigated by the author, in the papers [1, 2] are shown to be particular cases of the present problem.