DIFFERENTIAL QUADRATURE METHOD FOR VIBRATION ANALYSIS OF SHEAR DEFORMABLE ANNULAR SECTOR PLATES

This paper presents differential quadrature solutions for free vibration analysis of moderately thick annular sector plates based on the Mindlin first-order shear deformation theory. Numerical characteristics of the differential quadrature method are illustrated through solving selected annular sector plates with different boundary conditions, relative thickness ratios, inner-to-outer radius ratios and various sector angles. Parametric studies in terms of the vibration frequency parameters are thoroughly investigated.