Dynamic Analysis of Isotropic Annular Plate using Finite Element Method

Abstract

The vibration and harmonic response of isotropic annular plates have been examined in order to determine the frequency parameters and resonance amplitude. The employment of finite element is made in this study. The effects of thickness ratios and diameter ratios are investigated on natural frequencies and resonance point for isotropic annular plates. Different combinations of three types of boundary conditions i.e. clamped-clamped, clamped-free and free-clamped end conditions are considered at the inner and outer edges of the plate. The resonance amplitudes are also obtained for various damping ratios for same natural frequency. Verification of the accuracy of the results is made using the necessary convergence analysis and checked with available literature. From the comparison study, it has been demonstrated that the presently proposed model is efficient for solving the annular plate structure since the numerical results obtained in the present study are in good accordance with the published ones.