摘要
阐述了大型结构分析程序系统单元库更新的概念及其意义，报告了装入ＡＰ－１程序系统单元库的精化四节点及八节点平面等参元的情况，给出了更新前、后单元通过考题库测试的结果及与其它程序系统结果的比较。数值结果表明通过更新单元来提高程序系统的分析精度与计算效率从而增强其竞争力是可行的。
The concept and significance of updating element library of structural analysis program system were given in this paper. The refined 4-node and 8-node plane isoparametric elements in AP-1 program system were replaced with associated refined ones, and the relative compu-tational results for some standard examples were given and compared with those of old ele-ments as well as those of some other program systems.It was shown that the analysis accu-racy and computdtional efficiency of a program system can significantly be improved by up-dating element libraly,which will make the program system more competitive.
关键词
结构分析
程序系统
单元库
有限元
工程数学
structural analysis/program system
refined direct stiffness method
element li-brary
updating
element assessment
