用边界元方法求解平面拉普拉斯方程时必须计算两个矩阵。
Two matrices have to be calculated when solving plane Laplace equation by the use of BEM.
文章最后给出了有关矩阵元的计算方法。
Finally the methods for calculating the relevant matrix elements are provided.
空间协同分析时，采用超元法（每个单元由多根杆组成）计算等效柱的侧移刚度矩阵，自由度成倍减少。
The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
与“有限元法”和“传递矩阵法”的计算结果进行了对比，结果基本一致。
The calculated result is consistent with that by finite element method and transfer matrix method.
在曲轴系统的振动预测中应用动刚度矩阵法，计算从曲轴向滑块的激振力输入，建立了动力传动装置全系统的有限元模型，并采用该模型进行了振动的预测计算。
In this paper, the dynamic stiffness matrix method is used to predict the vibration of the crankshaft system and to calculate the input exciting force from the crankshaft to the slide rod.
Q3D提取使用的矩量法(积分方程)和有限元计算的电导，电容，电感和电阻矩阵。
Q3D Extractor USES method of moments (integral equations) and FEMs to compute capacitive, conductance, inductance and resistance matrices.
提出了一种计算有源腔模式分布的有限元数值矩阵方法。
A numerical matrix method for calculation of optical resonator modes with media inside is proposed.
用有限元传递矩阵法分析火炮身管固有振动特性，矩阵阶次低，计算所得的固有频率与实际固有频率接近，误差在允许的范围内。
Matrix step is low by using the finite element transfer matrix method. Natural frequency by calculation approaches to actual natural frequency and the error is allowable.
导出了在SU_6分类下，计算能量矩阵元的公式。
The formula for the energy matrix element under SU_6 is also derived.
本文使用超维里定理与升降算符方法，导出了氢原子跃迁矩阵元与平均值计算的一些递推关系式。
Some recursive relations were derived for the radial matrix elements of Hydrogenic Atom using hypervirial Theorem and ladder operators.
过渡梁元切线刚度矩阵的提出，使局部单层局部双层网壳的计算结果更趋近于实际。
The application of geometrically nonlinear transition beam element can enhance the calculation precision of partial single-layer and partial double-layer reticulated shells.
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。
The coupling matrix of high-order element and other related formulas are developed and cast in a form that is convenient for computer programming.
本文说明了在用有限元模式对机械结构的幅射换热问题进行求解时，必须计算形状因子矩阵。
It has been shown in this paper, that in solving radiation heat transfer problems for finite element model of mechanical construction it is necessary to compute the shape factor matrix.
负电荷激子是三个带电粒子的体系，构成本征函数的基矢数以及哈密顿矩阵元都极大，数值计算艰浩。
A negatively charged exciton is a system of three charged objects, making the numerical computations difficult due to the large size of the basic vector set and the Hamiltonian matrix.
常用的计算方法有双压法和压力温度法等，可以采用直接折叠法或初始矩阵法建立气囊的有限元模型。
The common calculation methods include dual pressure method and pressure temperature method in which the air bag FEM model can be created using the direct folding method or initial matrix method.
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．。
This paper discusses a method of selecting the boundary tree in edge finite element method, proposes the matrix rank method and introduces its applications.
应用有限元压缩柔度矩阵，建立了具有接缝传荷能力多块板的位移计算方法。
With finite element method and compressed flexible array method, this paper establishes a method calculating displacement of joint slab on elastic foundation.
在捷联惯导系统中，可以用四元数来表示姿态矩阵，而姿态矩阵的计算是捷联惯导系统的关键问题之一。
Attitude matrix is represented by quaternion and the calculation of attitude matrix is a key in Strapdown INS.
本文在位移元本征应力模式基础上引进调节参数，同时，利用矩阵H对角化方法计算杂交元应力子空间的本征应力模式，然后由此方便有效地计算特征值，从而大大提高了计算效率。
The parameters are introduced based on the natural stress modes of the displacement element, and the method of matrix H diagonalization was introduced to improve the calculation of the natural.
用二阶微拢论计算这一截面，结果表示为核矩阵元和激光电场强度的函数。
The cross sections for such processes are calculated in second order perturbation theory and expressed in term of the intensity of laser radiation and the nuclearmatrix elements.
如果用这种新的形状函数，则由此计算求得的刚度矩阵，不论三角圆环有限元的位置是否靠近轴线。
The calculated rigidity matrix is convergent everywhere, including these triangular toroidal element closed to the symmetrical axis.
本文提出了一个用于消除空间杆梁结构有限元模型中的无刚度“奇点”的元素及相应的刚度矩阵计算公式。
In this paper, a new type of elements and the stiffness matrix have been developed, which can be used to eliminate the singularity in the finite element model such as space truss and frame.
这种新方法在提高有限元法场量计算精度的同时，还使其刚度矩阵的阶数有所降低。
Compared with the traditional FEM, the formula considerably improves the field calculation accuracy and reduces the scale of the FEM stiffness matrix.
该方法克服了有限元或有限差分法需求解大型矩阵方程的困难，计算简单、结果可靠。
This method is available for solving large matrix equations with (Finite Element method) or Finite Differential Element method.
针对管网模型中雅克比矩阵高稀疏性的特点，采用三元组顺序表只对矩阵中的非零元素进行存储，提高了程序的存储和计算效率。
Triple table is used to only store non-zero matrix elements to improve the program's efficiency of storage and computation because simulation model's Jacobian matrix is serious sparse.
并分析了待定权函数系数的求法，即结合有限元计算混合型裂缝应力强度因子方法求出待定的权函数系数，继而得到了矩阵型权函数。
The method to get the constant coefficients of weight functions is also analyzed, which is based on the SIFs by finite element method.
在有限元计算过程中，可通过优化节点编号来减少整体刚度矩阵的带宽，从而节约存储空间，减少有限元分析的计算时间。
In finite element analysis, the bandwidth of the whole stiffness matrix is reduced by optimizing the node numbering, thereby the needed memory space is saved and the calculation time is reduced.
根据多色染色理论，在同一节点有任意多个单元邻接的情况下，对有限元的单元进行了分类；在刚度矩阵组集时，同类单元可以并行计算，从而提高了组集效率。
Based on the theory of multi-color dyeing, the elements of FEM were sorted with arbitrary number of elements in the neighborhood of the same node.
使用有限元传递矩阵法分析了某大长径比弹箭的固有振动特性，成功求得了其固有振动频率和振型函数，计算结果得到试验验证。
Vibration characteristic was calculated by using finite element transfer matrix method of multibody system and modal test was completed for a certain naval gun.
使用有限元传递矩阵法分析了某大长径比弹箭的固有振动特性，成功求得了其固有振动频率和振型函数，计算结果得到试验验证。
Vibration characteristic was calculated by using finite element transfer matrix method of multibody system and modal test was completed for a certain naval gun.
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