有限元法

The principles of FEM, finite difference method , numerical mode method and integral equation method are elaborately described.

详细阐述了非均匀介质问题中常用的有限元法、有限差分法、数值模式匹配法和积分方程方法的基本原理和各自的优缺点。

Up to now, finite difference method, finite element method and boundary element method are common numerical methods to obtain numerical solutions of parabolic partial differential equation.

目前求解抛物型偏微分方程的数值方法有有限差分法、有限元法和边界元法等。

This paper realized that the Patch Test is very important to Finite Element Methods.

本文提出分片试验在有限元法中有着重要的作用，它是近代有限元发展的一个主要特色。

The plane adopts the joint method of both the finite element and the finite difference to divide plane domain by means of irregular triangular net in order to fit topography and coastal line complicated sea zone; Vertical application σcoordinate conversion and the finite difference method.

平面采用有限元法和有限差分法相结合的方法，用不规则三角形网格剖分计算域，以适应地形和岸线复杂的海区；垂向应用σ-坐标变换及有限差分法。

This paper systematically reviewed dynamic relaxation method, force density method and nonlinear finite element method.

本文系统的回顾和研究了动力松弛法、力密度法和非线性有限元法。

Based 188F gasoline engine heat load studies, the research unit based on Using AutoCAD software for the design cylinder sleeve, and then use the software PRO-E 3D modeling, and the calculated and experimental analysis to determine the reference cylinder heat transfer across borders, reuse finite element analysis software ANSYS right cylinder mathematical analysis, systematically on the finite element method in 188F cylinder gasoline engine design of the application, in-depth study of the thermal load on the performance and reliability, as relates to structural strength, stiffness, temperature and so on.

本文以188F汽油机热负荷为研究对象，在研究整机的基础上，利用AUTOCAD软件进行汽缸套的设计，然后用PRO-E软件进行三维建模，并通过计算解析和实验参考确定了气缸套各处的传热边界条件，再利用有限元分析软件ANSYS对气缸套进行数学分析，系统地探讨了有限元法在188F汽油机缸套设计中的应用，深入研究了其热负荷对性能和可靠性的影响，内容涉及到结构强度、刚度、温度场等方面。

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。

In side slope stable analysis aspect, the article mainly introduces and analyzes the Swedish method, Bishop method, the transmission method of correlates and the finite element method and its suitable the condition in the side slope analysis utilization.

在边坡的稳定性分析方面，主要介绍和分析了瑞典法、毕肖普法、传递系数法及有限元法在边坡分析中的运用和适用条件。

Based on the similarity principle and nonlinear finite element method, reposition balance method was put forward to find the prestress.

基于相似原理结合非线性有限元法提出了膜结构找力分析的复位平衡法，根据形面的拓扑关系对复位平衡法进行了优化。

Solid propellant ; structural reliability ; response surface method ; finite element method ; R-F method

固体推进剂；结构可靠度；响应面法；有限元法； R-F法

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。