FORCED VIBRATION OF PLATES WITH ELASTICALLY RESTRAINED EDGES BY THE SPLINE FINITE STRIP METHOD

The spline finite strip method applied so far to the free vibration analysis of plates with classical boundary conditions has been extended to the forced vibration analysis of plates with edges elastically restrained against both translation and rotation. The steady-state response of plates under harmonic excitation is studied in this paper. The formulation has been generalised, so that arbitrarily shaped plates with restrained curved boundaries can be handled. The contribution of the edge restraining has been incorporated in the structural stiffness using a consistent formulation. Deflection and bending moment amplitudes have been determined for different edge restraints, aspect ratios, forcing frequencies and plate shapes, as available in the literature, and comparison of the results indicates good accuracy.