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针对三维有限元数据场的精确后处理算法
引用本文:李建波,陈健云,林皋.针对三维有限元数据场的精确后处理算法[J].计算机辅助设计与图形学学报,2004,16(8):1169-1175.
作者姓名:李建波  陈健云  林皋
作者单位:大连理工大学海岸与近海工程国家重点实验室,大连,116024
基金项目:国家自然科学基金 ( 5 0 13 90 10 ,5 0 2 0 90 0 2 ),辽宁省自然科学基金( 2 0 0 2 2 13 0 )资助
摘    要:为了描述有限元模型中数据场的分布规律,发展与完善了基于单元局部插值的母单元绘制算法,提出了以高斯积分点作为插值基准点的有限元应力云图绘制算法,并给出了具体的基于母单元的等值线绘制算法.与传统三角形算法做系统的比较表明,文中算法使有限元后处理功能充分达到了有限元数值分析的精度,尤其针对高阶插值数据场有更好的效果.

关 键 词:有限元模型  数据场  三角形算法  计算可视化技术  分布规律  母单元云图绘制算法  母单元等值线绘制算法

Precise Visualization Algorithm for the Post-processing of 3D Finite Element Model
Li Jianbo,Chen Jianyun,Lin Gao.Precise Visualization Algorithm for the Post-processing of 3D Finite Element Model[J].Journal of Computer-Aided Design & Computer Graphics,2004,16(8):1169-1175.
Authors:Li Jianbo  Chen Jianyun  Lin Gao
Abstract:By using local interpolation scheme of regular elements, an improved parent-element drawing approach is presented for the representation of the distributions of finite element data fields. Particularly, Gauss integral points are taken as the interpolation bases of stress distribution as well as, the corresponding contour drawing algorithm is given in detail. In comparison with the traditional drawing algorithm of triangle meshes, the proposed approach gives more precise presentation, especially for the high-order interpolation data fields.
Keywords:visualization in scientific computing  finite element method  post-processing techniques
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