一种改进的生成有限元全四边形网格的铺砌法  

A Modified Paving Algorithm Generating Quadrilateral Mesh for Finite Element Analysis

作　　者：方兴[1] 张武[1] 唐锦春[1] 于浩[1] 

机构地区：[1]浙江大学建筑工程学院,杭州310027

出　　处：《浙江理工大学学报（自然科学版）》2005年第1期43-47,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：浙江省教育厅回国人员基金(G59990)

摘　　要：对不规则区域适应能力强、边界拟合程度高的铺砌法进行了改进。单元不再是逐层生成,而是逐个生成,大大简化了相交情况的判断和处理;在网格生成前对初始边界小内角节点进行先处理,增强了边界适应性;同时提出一种节点位置计算方法。用VC开发了相应的网格生成器,最后用算例进行了验证。Improve the paving method that is special applicable to irregular domain and get good element on the permanent boundary. The elements are generated one by one instead of row by row and the judgment and disposal of intersection are simplified tremendously. Those fixed points with small angle are disposed before generating mesh. The adaptability to boundary is enhanced strongly. The method is put forward to calculate the position of node. A mesh generator is designed based on VC. In the end, two examples are given to verify the algorithm.

关 键 词：有限元 网格生成 四边形单元 铺砌法 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]