有限元网格自动生成及自适应改进

Automatic Generation and Adaptive Improvement of Finite Element Mesh

本文介绍的〈Adapt-Mesh〉是有限元三角形网格自动生成及自适应改进软件,适用于各种误差估计算法,而且功能比较完备。本文着重介绍Adapt-Mesh软件的“对分法”网格自动生成原理和在此基础上的总体网格Delaunay优化调整过程,以及h-方式三角形网格自适应加密方法;同时还给出了一个具有典型结构的电磁场模型实例。

Software <Adapt-Mesh> is developed for automatic generation and adap-tive improvement of FE triangular mesh, which fits for all algorithms of the posterior error estimate. This paper introduces the outline of the Adapt-Mesh system, especially including mesh automatic generation by <dividing into halves> and adaptive densenning mesh technique. In addition, a typical example of an electro- magnetic field of the electrical machine is presented in the paper.