建筑结构模型的四边形网格生成算法  

Quadrilateral mesh generation algorithm of building structure model

作　　者：陈沸镔[1] 谢步瀛[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《计算机辅助工程》2010年第1期17-21,26,共6页Computer Aided Engineering

基　　金：国家科技支持计划项目(2008BAJ08B06)

摘　　要：为提高建筑结构有限元分析计算的效率,提出建筑结构模型的四边形网格生成算法.首先采用改进的折半查找算法快速建立相应的结构模型索引信息;然后根据四边形网格划分的原则调整模型边界;最后采用分区域模板法对整体结构模型进行四边形网格的自动生成.算例表明该算法可以根据有限元分析计算中模型的特点简化模型,降低计算时间.To improve the efficiency of finite element analysis and calculation on building structure, a quadrilateral mesh generation algorithm of building structure model is proposed. Firstly, the index information of structure model is quickly established using an improved binary search algorithm. Secondly, the boundary of the model is adjusted according to the generation principle of quadrilateral mesh. Lastly, the quadrilateral meshes are generated for the whole structure model by using the separated-region template method. The example shows that the algorithm can simplify the model according to the characteristics of the model in finite element analysis and calculation and shorten the computing time.

关 键 词：建筑结构 索引信息 四边形网格 模板法 

分 类 号：TU311.4[建筑科学—结构工程]