查询词典 finit element method

It established a finite element model of the parts on the intensity theoretical of metal fatigue basis, and carried on the structure of static analysis, dynamic analysis and fatigue analysis, and a lot of finite element method were used, then the distribution of the stress was got.

在金属疲劳强度理论的基础上，建立了该零件的有限元分析模型，对发动机支架的结构进行了静力分析、动力分析以及疲劳分析，应用了较多的有限元分析方法，得到该零件的应力、应变分布状态。

2Mol/L..Uses the highly effective liquid phase chromatography to carry on the analysis to the product,The purification mignonette element's content is 37.34%, The result indicated that may enhance the mignonette element using the microwave method to receive greatly rate.

2mol/L。利用高效液相色谱法对产品进行分析，测得木犀草素的含量是37.34%，结果表明利用微波方法可以大大提高木犀草素的收率。

This paper mainly use static simulation method, and reseach some hazardous element in coal gangue from N. 1 well of Huang-Ling Kuang Qu . Base on the simulation experiments, hazardous minor element from coal gangue are studied.

在雨水和地表水的淋滤作用下，其中的一些有害元素会进入水体和土壤环境，从而造成水体质量下降，土壤功能破坏，影响生态发展，危害人体健康。

Firstly, the 3D solid model of the analyzed object is built directly in the FEM software ANSYS 8.0 without using other CAD software. The influence of the side sizes of solid elements on computing results and the influence of coupling ways between different parts on the modal parameters are researched by simply modeling. And a new connecting method about joints in ANSYS is proposed and applied to finite element modeling of the test-bed for spindle system. Furthermore, several different computing techniques for modal parameters extraction are compared in solving the finite element model of spindle system test-bed. Many modal solutions are also done to achieve the relationships between the whole or part stiffness value and computed modal parameters. The laws about joint rigid parameters" influences on modal parameters are discussed by means of altering their values for conjoint parts. And by changing local rigid parameter values, the different location selections" influence on computed modal parameters is also studied.

本文通过使用ANSYS 8.0软件直接建立研究对象的实体结构模型，而没有借助其他的CAD软件；通过构建简单的模型研究实体单元边长大小对计算结果的影响，部件之间不同的联结方式对模态参数的影响，探讨在ANSYS中实现结合部的方法，提出一种新的联结方法，并建立主轴系统试验台的有限元模型；对建立的主轴系统试验台有限元模型求解，比较几种不同模态提取方法；通过改变结合部联结单元的刚度参数进行的计算，寻找联结刚度对模态参数变化的影响规律；改变局部联结单元的刚度参数，研究刚度值位置差异对计算模态参数的影响。

The unbalance forces due to the lumped eccentric mass are treated as general forces. Meanwhile, the potential energy expression about gravity based on finite element method is presented for convenience. Based on the variational inequalities principle, the finite element is used to determine the film forces produced by fluid film bearing and damper at any moment and its Jacobian matrix with respect to location and velocity of journal and bearing house.

在第二部分中，主要应用有限元方法及Hamilton原理对所研究系统进行了建模分析，着重对质量偏心问题进行了分析处理，并对此提出了两种处理方法：一、转化为对系统动能的影响；二、将其产生的离心惯性力视为非保守的广义力，并对其表达式进行了推导，同时为分析问题方便，基于有限元离散化方法，推导了重力的势能表达式。

An element of the array is accessed by its index while an element is obtained in memory by its address. So the conversion method from array index to memory address must be generated. In this paper, a novel algorithm of address generation using logic operation for multidimensional array is proposed.

行为级描述中通过数组下标对数组元素进行操作，而存储器的操作要通过存储单元地址来实现，因此需要将数组元素的下标转换成对应的存储单元的地址。

Zhu Jialin[23]used a simple layer distribution expression based on velocity-pressure formula for the Dirichlet problem of Stokes equation with a Galerkin boundary element method and presented some numerical examples calculated by constant boundary element.

祝家麟从速度-压力公式出发，利用单层位势表示定常Stokes 方程Dirichlet 问题的解，用Galerkin 边界元法求解，并用常单元给出数值算例。

But using object oriented programming to study Finite Element is a new method to design and construct Finite Element.

本文从计算机科学的角度出发，将电磁场数值分析方法与软件科学相结合，研究了面向对象有限元方法的原理，设计了电磁场数值分析可视化软件系统。

A constitutive equation of the porous media is obtained in the coupling processes. According to the coupling model, a decoupled method is presented. The finite element equation is set up under several conditions and an object oriented finite element program is compiled.

推导了多孔介质在耦合作用下的本构方程，对于耦合模型提出了解耦方法，推导了不同边界条件下的有限元方程，并作为依据编制面向对象的有限元程序。

By increasing and deceasing the field domain boundary size, a method of defining the outer boundary of the domain is worked out. In addition, meshing control is determined by comparing the total element number and the effect of element distribution to the calculation result.

通过分析比较场域外边界大小对计算结果的影响，确定了场域模型外边界的选取方法；通过分析比较有限元网格总数与单元分布对计算结果的影响，确定了网格剖分控制方法。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。