摘要
本文利用分级有限元的特性,导出了一种适用于有限元结构动态分析的误差指示因子。在此基础上,提出了一种h—p模式的动态分析网格细分方法。它能减少有限元动态建模中网格划分的盲目性和随意性,从而在节省计算工作量的同时,提高了固有频率的计算精度。
An error indication factor for structural dynamic analysis by FEM is derived utilizing the embedding property of hierarchical finite element in this paper. A mesh refinement technique by h-p version for dynamic analysis is presented based on the error indication. It is able to decrease aimlessness and randomness for mesh generation in dynamic modelling by FEM. So the computing work is decreased and the calculating accuracy of eigenfrequencies is mproved.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
1992年第S1期39-44,共6页
Journal of Zhejiang University：Engineering Science
关键词
结构动态分析
有限元
网格划分
细化
建模
strctural dynamic analysis
finite element method (FEM)
mesh generation
refinement
modelling
