The radiation damping matrix of the infinite element is derived.
推导了辐射无限元的辐射阻尼矩阵。
In this paper, both the finite element and the infinite element method have been used.
运用有限元与无限元相结合的手段。
A new three dimensional infinite element is suggested and the related formulas have been derived.
建议采用一种新的三维无限单元，推导了这种单元的有关公式。
In the second chapter, the method and theory of mapping infinite element are dissertated in detail.
第二章对映射无限元的方法、原理进行了详细深入的论述。
Study of the infinite element-domain decomposition method in electromagnetic scattering of cylinders;
研究无穷凹角型区域椭圆边值问题的一种非重叠型区域分解算法。
DESIGN: a single sample study taking the data of L4 5 three dimensional infinite element model as object of research.
设计：以脊柱l4 ~5节段三维模型的相关数据为研究对象的单一样本研究。
The process of creating a infinite element model using ANSYS and calculating using ABAQUS is explained in particular.
并较详细地介绍了利用ANSYS的建模过程和ABAQUS的计算过程。
Infinite element method is a relatively simple and practical method in simulating infinite region among numeric methods.
无限元法是目前数值方法中较为简便、实用的模拟无限域的方法。
The second part of the paper then Puts forth a new infinite element suitable for the subject of deep underground explosion.
本文第二部分提出一个新的适用于深层地下爆破问题的无限元。
This article is intended to give a new iterative method to calculate the combined stiffness matrix in the infinite element method.
本文对无限单元法中组合刚度矩阵的计算给出了一个新的迭代方法。
In this paper, the finite and infinite element method in numerical analysis for wave forces of three dimensional problem is examined.
本文研究了三维情况波浪力数值分析中的有限元-无限元方法。
Use finite element and infinite element technology, and unified method to simulate flow noise, vibration noise and sound propagation.
采用有限元和无限元技术，用统一的方法模拟流动噪声、振动噪声及声传播问题。
In this thesis, based on the theory of mechanical vibration and the principle of infinite element analysis, the section of an enclosure pillar is optimized.
论文以材料力学、机械振动学理论和有限单元方法为基础，运用优化设计方法对立柱截面进行了优化；
The article USES infinite element method to analyze the intensity and rigidity of bus body, and USES electrical measurement technique to testify infinite element model.
用有限元法对客车车身的强度、刚度进行了分析，用电测量技术对有限元模型进行了验证。
On the basis of making the achievement previously, it was suggested and perfected what the types of the plane unilateral and bi-directional and spatial mapping infinite element.
在早先取得成果的基础上，提出并完善了平面单向、双向映射无限元及空间映射无限单元的类型。
The computer program which can be used for deter - mining wave forces on cylinders with arbitrary section is written by using the finite-infinite element method proposed in this paper.
应用本文推荐的有限元一无限元方法，设计了计算任意截面形状柱体所受波浪力的计算机程序。
Based on the mapping infinite element principle, a coupling model of finite element and mapping infinite element is presented to solve materially nonlinear problem of joint in the roadbed.
结合映射无限元的基本原理，提出用有限元-映射无限元耦合模型来解决路基中节理的材料非线性问题。
A seven-node superparametric infinite element model for simulating semiinfinite plane elastic foundation is presented and the fundamental principles and formulas of the model are described.
本文提出一种七节点超参无穷元用于模拟半无限平面弹性地基的计算方法。
In order to reduce the effect of wave reflecting on artificial boundary, transmitting boundary and semi-infinite element are respectively used to treat the lateral and underside boundaries.
考虑到人工截断边界上波反射对计算结果的影响，分别用传递边界和半无限单元来处理侧面和底面边界。
A dynamic mapping infinite element is presented for characterizing the waves with different wave Numbers in homogeneous foundation and simulations of propagation behavior in different media.
本文提出了一种映射动力无穷元，这种单元不仅可以表征在均匀介质中传播的不同波数的波，而且可以模拟地基中不同介质内的波的传播特性。
Coupling analysis method of finite element and infinite element is proposed to be used in the structural anti-seismic analysis of metro tunnel on the basis of soil-structure interaction theory.
在土体与结构动力相互作用理论的基础上，提出用有限元和无限元耦合分析法对地铁隧道结构进行抗震分析。
The use of infinite elements for modelling wave radiation eliminates the effects of artificial reflection of waves from finite element boundary, therefore the computational accuracy can be assured.
无穷元的应用消除了波在有限元边界上人为的反射效应，保证了数值解答的计算精度；
By making the infinite element model of rotor system and analyzing the dynamic characteristic on SAMCEF. Multi-disk rotor experimental rig on which auto-balancing research can be made was designed.
我们通过建立转子系统的有限元模型，利用Samcef软件对转子系统动力学特性进行分析计算，设计了多盘转子实验台来进行主动平衡研究。
As an infinite set of each element, although inexhaustible, yet each different.
就像一个无穷集合里的每个元素，虽然取之不尽，却又各不一样。
The harmonious displacement model of arbitrary quadrilateral plate element is used to analyze the arbitrary shape elastic foundation plate in the semi - infinite elastic foundation.
本文将任意四边形板单元的协调位移模式应用于半无限弹性地基上任意形状弹性地基板分析。
The results show that the infinite-element nonlinear model can describe the system more accuracy than the simple separating segment linear model do.
从仿真结果可见，与缆绳吊放声纳系统简单分段的线性模型相比，有限元非线性模型能更准确地描述系统的物理特性。
This paper introduces the boundary element method to study the affect of the blanket length for earth-rock dam on the infinite deep pervious foundation on the seepage of dam foundation.
采用边界元法研究无限深透水地基上土石坝铺盖长度对坝基渗流的影响。
In this paper, we investigate the natural boundary element method for the boundary value problem of harmonic equation in an exterior elliptic infinite sector domain.
研究了椭圆外无穷扇形区域上调和方程边值问题的自然边界元法。
High calculation accuracy can be obtained in calculating the concentration factor of the stress around infinite elastic medium cavities by using boundary element method.
使用边界单元法计算无限大弹性介质中孔洞周边应力集中系数，可获得较高的计算精度。
The hologram aiming optical element has a hologram dry plate, on the plate, there arranged with pattern information and infinite distance micro bright point information.
全息瞄准光学元件设有全息干版，干版上设有叉丝图案信息和无穷远微小亮点信息。
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