四边形有限元网格的快速生成算法

Fast Generation of Quadrilateral Mesh for Finite Element Analysis

摘要: 给出一个使用覆盖栅格生成四边形网格的算法.覆盖法能够快速生成有限元网格,但是边界单元的质量通常比较差,也难以得到全部的四边形网格.将边界内角分成4类,根据不同类型的内角,提出相应的使用覆盖栅格生成完全四边形网格所要采取的修正措施.最后,应用文中算法进行网格划分,结果表明该算法是有效的.

Abstract: Overlay of regular mesh template is used to generate quadrilateral meshes within the part boundary.For filling the remained irregular space around the domain boundary,four types of quadrilateral patches are inserted depending on the local,inner angle of domain boundary.Overall quality of the meshes is improved by Laplacian smoothing.