计算物理 ›› 1992, Vol. 9 ›› Issue (3): 303-312.

• 论文 • 上一篇    下一篇

非均匀弹性地基上非均匀变厚度薄板的小挠度弯曲问题的差分方法

曲小纲, 潘鼎坤, 冯寿岱   

  1. 西安冶金建筑学院基础课部, 西安 710055
  • 收稿日期:1992-04-01 修回日期:1992-09-12 出版日期:1992-09-25 发布日期:1992-09-25

THE FINITE DIFFERENCE METHOD OF THE BENDING PROBLEM OF SMALL DEFLECTION OF THIN ELASTIC PLATES OF NON-HOMOGENITY AND VARIABLE THICKNESS ON NON-HOMOGENEOUS ELASTIC FOUNDATIONS

Qu Xiaogang, Pan Dingkun, Feng Shoudai   

  1. Basic Courses Department, Xian Institute of Metallurgy and Construction Engineering, Xian 710055
  • Received:1992-04-01 Revised:1992-09-12 Online:1992-09-25 Published:1992-09-25

摘要: 本文由最小势能原理出发,对弯曲问题的控制微分方程和边界约束条件做了统一的差分处理,获得了仅仅依赖于板面网格结点的差分格式;对所得差分方程建立了直接求解与Gauss-Seidel迭代相结合的求解方法。本文还给出了初步的数值结果。

关键词: 薄板弯曲问题, 非均匀变厚度, 差分方法

Abstract: Starting from the principle of the minimum potential energy, the governing differential equation and the boundary constraint conditions for the bending problem are differenced unitedly and the difference schemes which depend only on the mesh points in plate area are obtained. A method to solve the difference equations by means of combining the direct manner with Gauss-Seidel iteration method is proposed. And a numerical example is given in the paper.

Key words: bending problem of thin elastic plate, non-homogenity and variable thickness, finite difference method