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In order to solve the large scale structural analysis problems, a finite element solution method called EBE-CG method is presented, which does not require the formation of global stiffness matrix, and then its parallel implementation is discussed. 共轭梯度法(CG法)是求解大型稀疏有限元方程组的有效迭代解法。针对大规模结构分析问题,提出了不形成总刚度矩阵时的EBE-CG法及其并行处理方法。
In this method, such removal is treated as though adding a load case applyingto the original structures, and the internal force redistribution can be calculated without modifyingthe global stiffness matrix. 与以往不同，本法仅将杆件撤除现为在原结构上增加荷载工况，因此无需重建总体刚度矩阵，即可用于分析杆件撤除对结构的影响。
The plastic elemental stiffness matrix was derived by plastic-hinge method. 然后用塑性铰法推导了单元的塑性刚度矩阵。
This paper mainly deals with the secant method used on stiffness matrix. 主要说明割线法在刚度矩阵上的应用。
The study of the stiffness matrix and dynamic characteristics on the DTCS. 3.;大底盘双塔楼连体结构刚度矩阵、动力特性的研究。
The stiffness matrix of the assemblage of elements is then generated in the same way as in the case of frames. 然后，按框架情况的相同方法建立诸单元组合体的刚度矩阵。
Based on the force-method equation, the stiffness matrix and fixed-end nodal displacement and force vector are derived. 在力法方程的基础上，给出了组合梁单元的刚度矩阵、杆端位移向量及杆端荷载向量并建立了刚度方程。
Iterative correction algorithm to preserve sparsity of the stiffness matrix was proposed. 提出了一种迭代修正算法，可保持反演结果的稀疏性；
In deducing the stiffness matrix of members,the forming of the equivalent shear module is described in detail. 在推导单元刚度矩阵时，着重阐述了压型钢板等效剪切模量的形成。
In the thesis the element torsion stiffness matrix and equivalent joint load are derived. 推导了变截面梁单元的扭转刚度矩阵和等效节点载荷公式。
In the coupling stiffness matrix, the coupling coefficients B11 and B22 had the major effects on panels warping. 在B矩阵中，系数B11和B22值对板坯翘曲度影响较大。
This combination process is called the assemblage of stiffness matrices. 这种组合的过程称为刚度矩阵的装配。
Basically, neglecting azial deformations corresponds to the omission of rows 1 and 4 and columns 1 and 4 of the stiffness matrix equation (15.1) . 忽略不计轴向变形基本上可以说相当于删去方程（15-1）中刚度矩阵的第1行和第4行及第1列和第4列。
Basically, neglecting axial deformations corresponds to the omission of rows 1 and 4 and columns 1 and 4 of the stiffness matrix equation(15. 1). 忽略不计轴向变形基本上可以说相当于删去方程(15-1)中刚度矩阵的第1行和第4行及第1列和第4列。
The element stiffness matrix and the equivalent nodalloads are derived, and the formulas for calculating internal forces and disp-lacements under three typical loads are given. 推导了单元刚度矩阵、等效结点荷载,并给出在等刚度段内三种典型荷载下的计算公式。
By using this method,temperature value on any single node at any moment can be solved with no forming the total stiffness matrix. 应用这种方法可以在不分解总刚矩阵的情况下,独立的求解各时间段中单个结点的温度值。
Air is assumed as compressible,inviscid and potential,nonlinear stiffness matrix and coupling aerodynamic expression have been deduced. 假定空气是可压缩、无粘性和有势的,推导了薄膜结构的非线性刚度矩阵和空气与薄膜结构耦合作用的气动力表达式。
The tangent stiffness matrix is obtained from the engineering strain and the principle for determining the limit point and bifurcation point is given. 由工程应变推导出几何非线性的切线刚度矩阵,并给出判断分歧点与极限点的准则,最后用一数值例题说明该方法的分析过程。
In this paper,strain and stiffness matrix of isoparametric element with eight nodes and hexahedron are derived in detail. 推导了八节点六面体等参单元的应变矩阵、刚度矩阵,对该单元的位移解收敛性和畸变敏感性进行了分析。
The stiffness matrix and node force vector of the elastic catenary element can be gained,and the equilibrium equation of the struct. 由弹性悬链线静力解析解可推导出弹性悬链线单元,得到单元的刚度矩阵和单元的节点力向量,集成后得到结构的平衡方程。