Using the finite element method to analysis of free vibration of thin isotropic oblate spheroidal shell

This paper focuses on the free vibration analysis of thin isotropic oblate Spheroidal shells. The shell properties are assumed to vary continuously through the thickness direction. The analysis is performed following the Finite Element method used the finite element package ANSYS. This method as well as to estimate the natural frequencies and mode shapes for the shells. The obtained results it is found that increase the natural frequencies with increase the thickness of shell and at constant the thickness of base with varying thickness of head the natural frequencies increase.