| 有限元分析中高精度等值线绘制的自动处理 |
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| 引用本文： | 张琦,楼志文.有限元分析中高精度等值线绘制的自动处理[J].应用力学学报,1992,9(3):119-123. |
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| 作者姓名： | 张琦 楼志文 |
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| 作者单位： | 西安交通大学
(张琦)，西安交通大学(楼志文) |
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| 摘 要： | 本文通过引入拉氏因子,以带线性约束最小二乘逼近的Golub方法,很好地处理了结点应力拟合的边值问题.利用三角形快速插值原理求出了等值线,并以CAD为环境绘制了单元图和等值线图,实现了有限元分析中高精度等值线的自动处理.
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| 关 键 词： | 等值线 有限元分析 弹性力学 |
Automatical Treatment of Precise Drawing Contour Lines in Numerical Analysis of FEM |
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| Zhang Qi Lou Zhiwen.Automatical Treatment of Precise Drawing Contour Lines in Numerical Analysis of FEM[J].Chinese Journal of Applied Mechanics,1992,9(3):119-123. |
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| Authors: | Zhang Qi Lou Zhiwen |
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| Institution: | Xi'an Jiaotong University |
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| Abstract: | In this paper, the boundary value problems of precise fitting of stresses of internal nodal points and boundary nodal points are treated with Golub method associated with least-squares fitting method under linear constraint through introducing Lagrangian factor. The contour lines are evaluated by use of fast-triangle interpolating value principle and the graphes of internal cells and contour lines are generated with AUTO-CAD. The automatical treatment of precise drawing of contour lines is realized in the numerical analysis of FEM. A FORTRAN program is developed and it can also be used for other contour line drawing, such as thermal contour lines. |
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| Keywords: | contour line best fit finite element method |
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