查询词典 numerical analysis

College of Civil Engineering , Beijing University of Technology, Beijing 100022, China A numerical analysis method for elastic-plastic seismic response of concrete block masonry is presented based on open system for earthquake engineering simulation system. The method simulates concrete block masonry by using equivalent frame model with rigid offsets; the space beam-column elements are simulated by force based nonlinear beam-column elements.

基于地震工程模拟开放系统OpenSees，提出了混凝土砌块砌体结构三维弹塑性地震反应数值分析方法，用带刚域的等效框架模型模拟混凝土砌块砌体结构，空间杆单元采用以力为基础的非线性梁、柱单元。

In order to discuss disaster degree and hazard risk of perilous rock on road slope, a numerical analysis method was used to calculate full motion trace of the perilous rockfall along road slope.

为了研究公路边坡落石灾害的危害程度和危害风险，利用数值分析手法计算了危岩落石在沿坡面的完整运动路径。

Numerical analysis is an important tool for the study of the seepage, deformation and stability of rock slope.

数值分析是岩石边坡渗流、变形与稳定分析等问题的重要研究手段。

Numerical analysis topic, Gauss- Seidel iterative algorithm Matlab files.

详细说明：数值分析题目，高斯-赛德尔迭代算法的Matlab文件。

SUMMARY With many branches of learning, such as set theory and topology theory in mathematics, data structure and programming language in computer, and finite element method in numerical analysis of electromagnatic field, a new domain of FEM is studied in this thesis creatively.

本文综合使用数学中的集合论和图论、计算机科学中的数据结构和算法语言、以及物理学电磁场分支中电磁场数值分析的有限元理论等多门学科的知识，对有限元法的一个新领域进行了具有开创性的探讨。

Road engineering ; skid resistance ; numerical analysis ; tangent stress ; interfacial friction coefficient

道路工程；抗滑；数值分析；接触应力；界面摩擦系数

Numerical Analysis of Nozzle and Plume Field of a Solid Rocket Motor［J］.

固体火箭发动机喷管及羽流流场的数值分析［J］。

More precisely, we use the spherical coordinates for independent variables in space, and so avoid the approximation of boundary conditions on the surface, which is required, if we use the Descartes coordinates. Next, we use the Descartes coordinates for the components of velocity, which simplifies the actual computation and numerical analysis essentially.

我们所设计的求解Navier-Stokes方程的混合谱格式具有如下的一些特点：首先，我们采用混合坐标方法，即用球面坐标表示空间自变量，而用Descartes坐标表示速度分量。

Also, any spreadsheet software can be used to solve simple problems relating to numerical analysis.

此外，任何电子表格软件可以用来解决有关的问题，简单的数值分析。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐