# [1]林洋.梁的有限单元法分析技巧初探[J].东南大学学报(自然科学版),1988,18(1):129-132.[doi:10.3969/j.issn.1001-0505.1988.01.015] 　Lin Yang (Department of Civil Engineering).A Practical Method of Increasing Accuracy in FEM Analysis of Beams[J].Journal of Southeast University (Natural Science Edition),1988,18(1):129-132.[doi:10.3969/j.issn.1001-0505.1988.01.015] 点击复制 梁的有限单元法分析技巧初探() 分享到： var jiathis_config = { data_track_clickback: true };

18

1988年第1期

129-132

1988-01-20

## 文章信息/Info

Title:
A Practical Method of Increasing Accuracy in FEM Analysis of Beams

Author(s):
Lin Yang (Department of Civil Engineering)

Keywords:

+
DOI:
10.3969/j.issn.1001-0505.1988.01.015

<正> 目前用有限单元法分析梁是一种必不可少的手段,它的分析精度与所划分的单元网格尺寸,以及节点数有关。单元划分得越多,计算结果就越准确,但所需求解的未知数也越多,计算工作量越大。此外,由于梁的形状特征对单元网格的划分有特殊的要求,通常必须采用较细的单元网格才能得到较高精度的解答。这使得目前面广量大的微机和小型机的应用受到限制。本文根据梁的受力特点,提出了一种减少未知数、提高计算精度的实用方法,不但减少
Abstract:
Based on the deformation behavior of-beams and the features of FEM,a practical method of increasing accuracy in FEM analysis of beams is presented. By this method,the analytical results of high accuracy can be obtained with less FEM meshes and the capacity of microcomputers for solving beam problems can be enlarged.The method can also be extended,without any difficulty, to the beams with complex stress-strain relation.An example proves effecti- veness of this method quantitatively.

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