Vibration and stability of spinning polar orthotropic annular plates reinforced with edge beams

In this paper, the frequencies and buckling loads for a radially compressed, spinning polar orthotropic annular plate with simply supported edge beams along the inner and outer edges are determined. The inner and outer edge beams are subjected to uniform radial loadings and the system spins at a constant angular velocity. The frequencies and buckling loads are determined for both axisymmetric and higher modes. They are found to be functions of the in-plane loads, plate dimensions and rigidities, angular velocity, edge beam stiffness, and mass and inertia parameters.