In this paper, a semi analytical solution is presented to investigate free vibration of moderately thick symmetrically laminated cylindrical panels with clamped boundary conditions. The technique is based on the utilization of the extended Kantorovich method (EKM) to the governing partial differential equations. Following the first order shear deformation theory (FSDT), the governing partial differential equations (PDEs) are obtained in terms of three displacement components and two rotations. Application of the EKM reduces the governing PDEs to dual sets of ordinary differential equations (ODEs). The resulted sets of ODEs are then solved, with infinite power series solution, iteratively using arbitrary functions as initial guesses. It is shown that the presented technique in comparison with other methods, such as Ritz method, provides highly accurate results for natural frequencies and mode shapes of symmetrically laminated cylindrical panels with very fast convergence.
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