Analysis of general shaped thin plates by the moving least-squares differential quadrature method

作者：Liew KM; Huang YQ; Reddy JN^*

来源：Finite Elements in Analysis and Design, 2004, 40(11): 1453-1474.

DOI：10.1016/j.finel.2003.10.002

• differential quadrature method
• plates
• moving least-squares approximation
• numerical method
• meshless method
• mesh-free method

The mesh-free moving least-squares differential quadrature (MLSDQ) method is proposed for solving the fourth-order, partial differential equation governing the bending of thin plates according to classical plate theory. The deflections of an arbitrary shaped plate are expressed in terms of the MLS approximation. The weighting coefficients used in the MLSDQ approximation are calculated through a fast computation of the shape functions and their derivatives. The discrete multiple boundary conditions and governing equations are solved by a least-squares approximation. Numerical examples are presented to illustrate the accuracy, stability and convergence of the present method. Effects of support size, order of completeness and node irregularity on the numerical accuracy are carefully investigated.

• 出版日期2004-7
• 单位南阳理工学院