| 数值流形方法中覆盖位移函数的改进 |
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| 引用本文： | 周小义,邓安福,黄润英.数值流形方法中覆盖位移函数的改进[J].岩土工程技术,2007,21(1):1-3. |
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| 作者姓名： | 周小义 邓安福 黄润英 |
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| 作者单位： | 1. 重庆大学土木工程学院,重庆,400045
2. 重庆煤田地质研究所,重庆,400042 |
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| 摘 要： | 通过对数值流形方法刚度矩阵形成的研究,提出一种改进的覆盖位移函数,以改善刚度矩阵计算。分析表明,改进的覆盖位移函数可使刚度矩阵的局部大数数量级明显的降低,提高计算效率,给矩阵求解提供适当的意见,并给出算例验证方法的正确性。
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| 关 键 词： | 数值流形方法 刚度矩阵 覆盖位移函数 形心坐标 |
| 文章编号： | 1007-2993(2007)01-0001-03 |
| 修稿时间： | 2006年11月21 |
Improvement of Cover Displacement Functions in the Numerical Manifold Method |
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| Zhou Xiaoyi,Deng Anfu,Huang Runying.Improvement of Cover Displacement Functions in the Numerical Manifold Method[J].Geotechnical Engineering Technique,2007,21(1):1-3. |
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| Authors: | Zhou Xiaoyi Deng Anfu Huang Runying |
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| Abstract: | Based on research of the formation of stiffness matrix in the numerical manifold method,physical cover displacement function is improved to mend the stiffness matrix that relatively huge numerical value appears in part of that.The result shows that locally huge numerical value is greatly reduced as adoption of improved formulation of physical cover displacement function,and calculation efficiency is enhanced.This supplies a reasonable suggestion for the solution of the stiffness matrix.An example testifies the validity of the proposed approach. |
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| Keywords: | numerical manifold method stiffness matrix cover displacement function center coordinate of figure |
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