Stability analysis is carried out with prestressed spatial steel structures according nonlinear finite element theory.
基于非线性有限元原理对预应力空间钢结构进行了稳定性能分析。
The three-node beam element tangent stiffness matrix including the geometric stiffness matrix is developed according to the nonlinear finite element theory.
进而依据非线性有限元理论推导了该三结点梁单元的几何刚度矩阵的单元切线刚度矩阵；
The internal forces in tensile membrane structures were analyzed using geometrical nonlinear finite element theory using curved quadrilateral isoperimetric 8 node elements.
本文根据几何非线性有限元理论，采用8结点曲面四边形等参单元，编制了用于张力膜结构内力分析的有限元程序。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with8 nodes for initial form analysis of tensile membrane structures is presented.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
To the dynamic stability of the K8 single layer latticed shell structures under the seismic loads, this paper carried out the dynamic stability analysis based on the nonlinear finite element theory.
针对单层k8型网壳结构在强震时的动力稳定问题，应用非线性有限元理论进行了分析。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on the theory of elastic-plastic deformation, according to the finite element method, this paper presents a nonlinear analysis of the distribution of the soil pressure of the ditch conduit.
表明对大型沟埋式管道的上压力，采用弹塑性理论的非线性分析是比较符合实际的，其结果可供设计参考。
The catenary theory and geometrical nonlinear finite element method were adopted in determining the dead-load state of self-anchored suspension bridge with spatial cables.
结合悬链线理论和几何非线性有限元方法，对空间缆索自锚式悬索桥成桥状态的确定方法进行了研究。
The nonlinear finite element analysis theory and method for the suspension bridge with concrete stiff girder was studied in the chapter 4 and 5.
第4、5章研究含混凝土加劲梁的悬索桥非线性精细计算理论、计算方法。
Based on the above theory, finite element software is developed to analyze the geometrically nonlinear stability of slender structure.
基于上述理论，开发了可考虑几何非线性效应的细长结构稳定性分析软件。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
本文根据几何非线性有限元理论，采用8结点曲面四边形等参单元，编制了用于张力膜结构内力分析的有限元程序。
Based on the nonlinear, elastic-plastic finite element method theory, the modeling approach of the numerical simulation of incremental sheet metal forming was studied firstly in this project.
本课题基于非线性、弹塑性有限元理论方法，对金属板料渐进成形的数值模拟的建模方法进行研究。
Combining with the concrete industrial task, the basic theory of edge finite element method and its application in 3-d nonlinear eddy current field and loss are deeply researched in this paper.
本文结合具体的工业课题，主要进行了棱边有限元法的基础理论及其在三维非线性涡流场及损耗问题中的应用研究。
Combining with the concrete industrial task, the basic theory of edge finite element method and its application in 3-d nonlinear eddy current field and loss are deeply researched in this paper.
本文结合具体的工业课题，主要进行了棱边有限元法的基础理论及其在三维非线性涡流场及损耗问题中的应用研究。
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