| 结构分析的能量法应用 |
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| 引用本文： | 李斯贤,许锋,孙锁泰.结构分析的能量法应用[J].江苏大学学报(自然科学版),1998(1). |
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| 作者姓名： | 李斯贤 许锋 孙锁泰 |
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| 作者单位： | 江苏理工大学数理系 |
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| 摘 要： | 介绍了能量法在计算结构位移方面的一些基本原理及其应用，尤其是卡氏定理在有限元法中导出总刚度矩阵，最小应变能法在计算结构位移的应用和力法的联系和比较等，计算表明该方法在形成和求解总刚度矩阵中具有较大速度优势．
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| 关 键 词： | 结构 位移 应变能 有限元法 刚度矩阵 |
Application of Energy Method in Computing Structural Displacements |
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| Li Sixian,Xu Feng,Sun Suotai.Application of Energy Method in Computing Structural Displacements[J].Journal of Jiangsu University:Natural Science Edition,1998(1). |
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| Authors: | Li Sixian Xu Feng Sun Suotai |
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| Institution: | Li Sixian Xu Feng Sun Suotai |
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| Abstract: | This paper introduces the basic principles of the energy method and its applications in computing structural displacements with emphasis on using Castigliano's theorem to derive the structural global stiffness matrix in FEM and the minimum strain energy method to compute structural displacements, as well as their relations and comparison with the force method. The result obtained by the method indicates that it has a great advatange in forming global stiffness matrix and solving problems. |
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| Keywords: | structures displacements strain energy finite element methods stiffness matrix |
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