Solution of anisotropic nonuniform plate problems by the differential quadrature finite difference method

The differential quadrature finite difference method (DQFDM) has been propo sed by the author. The finite difference operators are derived by the diffe rential quadrature (DQ). They can be obtained by using the weighting coeffi cients for DQ discretizations. The derivation is straight and easy. By usin g different orders or the same order but different grid DQ discretizations for the same derivative or partial derivative, various finite difference op erators for the same differential or partial differential operator can be o btained. Finite difference operators for unequally spaced and irregular gri ds can also be generated through the use of generic differential quadrature (GDQ). The derivation of higher order finite difference operators is also easy. The DQFDM is used to solve anisotropic nonuniform plate problems. Num erical results are presented. They demonstrate the DQFDM.