In the third part, the concept of coupling element is derived from the vibration analysis of a four-degree spring-oscillator system, and a whole transfer matrix method is developed on the basis of it.
第三章从一个四自由度弹簧振子的振动分析问题提出耦合单元的概念，建立了多转子系统振动分析的整体传递矩阵法；
Method for computing the element restoring force, rather than the stiffness matrix, is the most important factor that determines the accuracy of a geometric nonlinear finite element problem.
几何非线性单元的精度主要决定于单元恢复力的计算方法，刚度矩阵对单元精度的影响很小。
Since the gear engagement is a common coupling form between rotors, the transfer matrix of skew gear engagement in global coordinate system is deduced based on the concept of coupling element.
齿轮啮合是转子之间常见的一种耦合形式，根据耦合单元的概念，推导了在全局坐标系下斜齿轮啮合的传递矩阵。
A stiffness matrix of simple rectangular plate bending element with 12 parameters expressed in explicit form is derived.
推导了以显式表示的12个自由度的简单矩形板弯曲元素刚度矩阵。
How do I randomly pick an element in each column of a matrix in MATLAB?
我随机选择一个元素如何在MATLAB矩阵的每一列吗？
The matching process is mapped onto a matrix, where each element represents a pair of possible matching pixels.
该方法将匹配问题映射为一个矩阵，其元素代表可能匹配的像点。
On the basis of force density matrix of cable element, a force density matrix of triangle membrane element is introduced.
本文在已有的索单元力密度矩阵的基础上推导了三角形膜单元的力密度矩阵。
The type of hysteresis loops can arbitrarily be chosen, and the corresponding element stiffness matrix can be built up in a simple way.
弯矩—曲率恢复力曲线可以是任意的，而相应的单元刚度矩阵的建立较为简单。
In general situation, the coefficient matrix of linear equations deduced by the Boundary Element Method (BEM) is a compact one.
一般情况下，边界元法所建立的线性方程组系数矩阵为一满置矩阵。
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
根据简并态微扰理论和氢原子波函数的性质，得到久期方程中微扰矩阵元的分布规律。
In this paper, a improved geometric stiffness matrix of a column element considering axial force-lateral displacement effects is derived.
本文推导了柱单元受大轴力和单元变形过大两种情况下的单元几何刚度矩阵。
Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
本文从非棱柱形梁的弯曲理论出发，推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
The main problem considered in this paper is how to find efficiently a nonzero element in the kernel of a given structured matrix by the displacement approach.
研究如何应用位移秩的方法有效地求出一个给定的结构矩阵的核空间中的一个非零元素。
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。
This paper introduces a finite element method of the plane trusses with elastic node. The element stiffness matrix and loading matrix are calculated in detail.
研究了弹性结点有限元方法，详细导出了弹性结点杆件的单元刚度矩阵和常见荷载列阵。
The present invention also provides a building element having a matrix of sintered fly ash.
本发明还提供基体为烧结飞灰的建筑元件。
In this paper, we study the problem of a kind of matrix in the sense of minimax algebra by using graph theory method and present the property of matrix power element.
用图论方法对一类极大代数意义下矩阵进行了研究，给出了矩阵方幂元素的性质。
The results indicate that most of the rare-earth element are concentrated along the boundary in network of metallic compound with a few solutioned into the Mg matrix.
结果表明，添加的镧镨铈混合稀土只有少量固溶在镁基体中，绝大部分形成了稀土化合物，沿晶界呈网状分布。
In finite element analysis, node numbering plays a decisive role in determining the bandwidth of the global stiff matrix.
在有限元分析中，节点编号对整体刚度矩阵的带宽起着决定性的作用。
This paper discusses a method of selecting the boundary tree in edge finite element method, proposes the matrix rank method and introduces its applications.
介绍了棱边有限元法中选取边界树的原理和方法，提出了矩阵求秩法计算边界树，并结合实例说明其有效性．。
The elastic stiffness matrix and the geometrical stiffness matrix for a element of cylindrical shells been established by the relation ship of strain displacement in a lange deflection.
理论上采用大挠度的应变——位移关系，建立了圆柱壳单元的弹性刚度矩阵和几何刚度矩阵。
The paper presents a method for constructing partial hybrid finite element by diagonalization of matrix h.
给出了利用H阵对角化建立部分杂交元的方法。
So the form of the element stiffness matrix is analyzed, a method which may realize the real time computation of element stiffness matrix based on the BP net is proposed.
分析了单元刚度矩阵的组成，提出用BP网络来实现单刚矩阵的实时计算方法。
The first term of this transition matrix element is a divergent pluralism when the incident and scattered waves are chosen as plane wave.
跃迁矩阵元被表示为两项，当入射电子和散射电子近似为平面波时，跃迁矩阵元的第一项是一个发散的复数；
The coupling matrix of high-order element and other related formulas are developed and cast in a form that is convenient for computer programming.
给出了高次元的耦合矩阵和有关公式，并将它们表示成便于编制计算机程序的形式。
It is proved in a complicated optical system that the diffraction integration in terms of ray matrix element is the right solution 'for paraxial equation.
对复杂光学系统证明了光线矩阵元表达的衍射积分是旁轴波动方程的准确解。
The Parameters of a broadband lumped-element circulator are optimized by using the scattering matrix eigenvalue relative to the frequency.
本文从散射矩阵本征值的频率关系出发，对宽带集中元件环行器所需的设计参数作了优化计算。
The maximum matrix element principle of fuzzy cluster analysis is combined with the fuzzy ISODATA cluster analysis in this paper, thus a fuzzy mixed cluster method is established.
本文将模糊聚类最大矩阵元原理与基于数据迭代为基础的模糊ISODATA聚类分析相结合，形成模糊混合聚类法。
It is proposed a new topological method of adjacent matrix of esters which was constructed by taking the characteristic value of the pieces of ester compounds as principal diagonal element.
提出了拓扑方法，即考虑分子图顶点的性质，直接用酯类化合物的分子碎片的特征值为主元来构建邻接矩阵。
An efficient numerical method for simultaneously updating mass matrix and stiffness matrix of a finite element analytical model based on incomplete modal data measured is presented.
提出一种基于不完全模态测量数据同时修正有限元质量矩阵与刚度矩阵的有效数值方法。
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