stiffness matrix

Ladder finite strip stiffness matrix is derived to Solve the bending problems of boundary conditions.

推导了新型梯形有限条刚度矩阵的计算格式.

Meanwhile, the internal force vector and the element tangent stiffness matrix could be obtained from calculating directly the first derivative and second derivative of the element strain energy with respect to the nodal variables, respectively.

同时，采用矢量型转动变量，可以直接从计算单元应变能泛函对节点变量的一阶和二阶偏微分得到单元内力矢量和切线刚度矩阵。

The computation of element stiffness matrix is important and time consuming in the finite element method.

有限元单元法是塑性成形领域应用比较广泛的数值分析法之一.

Based on the force-method equation , the stiffness matrix and fixed-end nodal displacement and force vector 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.

After discussing method for integrating stiffness matrix and load embattle, they are integrated with'set-in-right-position'rule.

通过对刚度矩阵及荷载列阵集成方法的探讨, 用“对号入座 ” 的方法得到结构整体刚度矩阵和结构整体荷载列阵.

In this paper, a tangent stiffness matrix of members of latticed shell was derived on the basis of using Timoshenko's beam-column theory.

本文采用Timoshenko梁柱理论，推导出网壳杆件的切线刚度矩阵。

Penalty element method and derivation of penalty element stiffness matrix are described.

叙述了罚单元法和罚单元刚度矩阵的推导过程.

The prestressed lattice structure is a new type of structural form. The tangent stiffness matrix of the spatial cable element would be introduced in the process of nonlinear analysis in the calculation of this type of structure.

预应力空间网格结构是一种新型的结构形式，对该结构进行非线性分析计算时，需要采用空间索单元的切线刚度矩阵。

As a result, the element tangent stiffness matrix is symmetric and is updated by using the total values of the nodal variables in an incremental solution procedure.

因而，得到的单元切线刚度矩阵是对称的，此外在增量求解过程中用节点变量的全量进行更新。

What is the feature of general element stiffness matrix?

一般的单元刚度矩阵有什么特点?

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 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.

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 whole stiffness matrix of structural system is derived by condensation approach.

分析了结构运动方程,并采用缩聚法建立结构总侧移刚度.

For geometrical nonlinearity, Updated Lagrangian formulations are adopted to derive the tangent stiffness matrix.

列式法求解切线刚度矩阵来考虑几何非线性.

Using the concept of plastic hinge, the tangent stiffness matrix of spatial beam element is formed. At the same time the effect of geometry nonlinear property, residual stress and end restraint are considered.

引入塑性铰的概念，建立了空间梁单元弹塑性刚度矩阵，同时考虑几何非线性、残余应力、端部约束等的影响，给出了一套钢结构复杂体系的有限元计算方法。

The stiffness matrix of synthetic dual plate-spring interlayer element is deduced.

导出了双层板 ― 性夹层的综合单元刚度矩阵.

Stiffness matrix of the model and element stiffness was developed.

推导了模型的单元刚度矩阵和各杆件的刚度.

A considered shear deformation affect, exactitude multi-segment bar stiffness matrix was deduced by structural mechanics principle.

利用结构力学原理推导得出了考虑剪切变形影响的精确多分段杆单元模型的单元刚度矩阵.