查询词典 fem

The main dimensions are calculated by magnetic track, then the fields of load and without load are computed by 2-d FEM and references of the motor are obtained, so the structure of the motor can be adjusted.

用磁路设计法确定电机的主要尺寸，然后用二维有限元法计算电机的空载和负载磁场分布，得到电机的参数和性能，根据性能要求对电机结构尺寸调整。

The following software to be used by company, GHS(R11.5) software used for Hydrostatics calculation, stability and global strength evaluation and freeboard and tonnage calculation; SHD and Mastership software used for Hull construction Modeling, Working drawing generation and Mould loft; ANSYS software used for FEM structural analysis; SB3DS software used for modeling of Piping and it s fittings, electrical cable and it s fittings, working drawing generation; Microsoft Project used to project planning.

公司内的设计和管理工作主要应用以下软件：船舶性能计算采用用美国的 GHS(R11.0)系统；船体结构建模及放样采用上海东欣软件；船舶结构有限元分析主要用ANSYS通用有限元分析及结构优化软件；管系布置及放样软件采用SB3DS；电缆布置及放样软件采用SB3DS； Microsoft Project用于工程及设计管理。

A methed calculated the matrix of the stress ratio by the FEM is proposed and the value of element in the matrix of the stress ...

提出了利用有限元法计算弹性矩阵中应力比矩阵的方法，并对应力比矩阵的元素取值作了初步研究。

Research in predicting and modeling microstructural changes in a workpiece using FEM is in progress.

利用有限元分析的方法预测和还原工件的微观结构变化尚待进一步发展。

To obtain the stress and temperature of the miler and workpiece in the steel roiling process, commercial FEM program LS-DYNA had been used to analyze the parallel roiling process and the approach was based on three dimensional thermal mechanical coupled finite element method under the condition of using elastic roller.

为得到轧制过程中轧辊、轧件的应力、温度分布，采用有限元软件LS-DYNA，通过三维热力耦合弹塑性有限元方法，在轧辊为弹性体的条件下，对钢材的平辊热轧过程进行了仿真分析。

And the numerical control system was developed, which can edit and execute G-code. Furthermore, the mechanics characteristics of micro milling cutter was analyzed using FEM.

开发了可编辑和执行G代码程序的数控系统，并利用有限元法对微细铣刀的力学特性进行分析。

On the basis of FEM and modal analysis of the bracket system, a reasonable optimum model is built, which considers manufacturing constraints and mode control.

在保证结构质量不增加的前提下，利用拓扑优化技术实现了发动机排气系统固有频率的优化设计。

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。

By using the solid FEM and the method decided in this thesis respectively, the vibration mode of crankshaft hi the one-cylinder engine is simulated. Results of two methods are very similar.

最后，为使本文的方法得以推广与应用，采用VC++6.0结合ANSYS与MatLAB编制了一个及模拟、计算和分析于一体的应用软件系统。

From the point of vertical interconnect via, the matrix pencil moment method, FDTD, edge-element FEM, microwave network model method and CAD model method of vertical via interconnect were introduced. The analysis of these methods shows their advantages and shortcomings.

从垂直互连通孔入手，介绍了垂直通孔互连的矩阵束矩量法、时域有限差分法、边基有限元法以及微波网络模型法和CAD模型法，分析了这些方法已经取得的结果，并指出了这些方法的优缺点。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。