Vector Fields Opera 12.003 Win64 Release.

OPERA-2D是 2 维的电磁场计算软件包，主要是做进行力和热的分析。可以通过有限元方法及几个不同的方程式（泊松方程、亥姆霍兹方程、扩散方程）对电场、磁场和低频下的时变磁场进行描述。

    OPERA-2D适用于那些有对称特性或是对 3 维条件不严格要求的模型模拟。

    OPERA-2d 是一套应用于电子设备设计的软件包，结合了世界先的电磁分析模块（包括机械力分析和热分析）。这些分析模块允许用户开始理念上的电磁设计，并可以在同一的软件包内进行机械力以及热效应。 OPERA-2d 具有窗口界面，有容易理解的快捷按钮。窗口界面的设置直观而且容易使用，这对新用户来说非常重要。

 OPERA-3D 是一套完整的电磁场 3D 分析软件，使用了先进的有限元技术。这套软件包括了一个传统的前后程序处理，以及一个基于工业标准的建模器，还有闻名的 TOSCA 、 ELEKTRA 、 CARMEN 和 SCALA 等分析模块（在其他资料中有详细介绍）。因为包含了在低频电磁场计算方面超过 20 年的研究和经验，这些模块可以描述加工技术的状态，使用户可以放心简便的来分析静态场、时变场、转动机械和高速空间电荷效应、热效应等。 OPERA-3D 的 Modeller 和 Pre 、 Post Processor 提供了直观便利的使用环境来连接这些模块。

OPERA-3d Modeller

    OPERA-3d Modeller 是由 Vector Fields 使用 ACIS 内核专门设计用于电磁应用的模块。 Modeller 有一个很容易使用的窗口界面，带有清楚的图标。能够进行初级形体的布朗操作以及自动生成四面体网格都使得复杂的 3D 模型的建立可以进行的非常迅速。 Modeller 通过一个工业标准 SAT 文件界面与 CAD 系统间进行几何数据的转移。这种方式减少了必需输入的数据量也减少了可能出现的错误。

Pre and Post-Processor
Opera-2d/PP: interactive Pre and Post-Processor. See The Pre and Post-Processor.
Static Fields
Opera-2d/ST: magnetostatic and electrostatic field analysis, with nonlinear materials. ST includes software to adapt the finite element mesh in order to achieve a specified accuracy. See Static Field Analysis (ST).
Opera-2d/SP: electrostatic field analysis including the effects of space charge created by beams of particles. See Space Charge Beam Analysis (SP).
Eddy Currents
Opera-2d/AC: steady-state ac eddy current analysis, including use of non-uniform permeabilities from Opera-2d/ST, complex permeabilities and external circuits. AC includes software to adapt the finite element mesh in order to achieve a specified accuracy. See Steady-state AC Analysis (AC).
Opera-2d/TR: transient eddy current analysis, with nonlinear materials, multiple drives, background dc fields and external circuits. See Transient Analysis (TR).
Opera-2d/VL: uniform linear or rotational motion induced eddy current analysis, where the topology does not change with time. VL includes software to adapt the finite element mesh in order to achieve a specified accuracy. See Velocity Analysis (VL).
Rotating Machines
Opera-2d/RM: transient analysis of rotating machines, with variable speed rotors, skewed rotors, mechanical coupling and all the features of TR. See Rotating Machines (RM).
Linear Motion
Opera-2d/LM: transient analysis of general motion (linear and/or rotating), driven as variable speed or with mechanical coupling, and all the features of TR. See Linear Motion (LM).
Demagnetisation
Opera-2d/DM: models the magnetisation process for hard magnetic materials. During nonlinear analysis Opera-2d/DM can use a virgin BH-Curve for material magnetisation and then secondary `demagnetisation' BH-Curves as the field decreases. See Demagnetisation Transient Analysis (DM).
Stress and Thermal
Opera-2d/SA: stress analysis including external forces and using forces calculated from electromagnetic solutions. See Stress Analysis (SA).
Opera-2d/TH and Opera-2d/THTR: steady-state and transient thermal analysis using external heat fluxes and ohmic heating calculated from electromagnetic solutions. See Thermal Analysis (TH and THTR).
Lossy Dielectrics
Opera-2d/ST, AC and TR can solve electric field problems in models with conductivity and permittivity. In statics the current flow problem is solved first to provide the voltage boundary conditions for the electrostatic problem. (Current flow problems can also be solved separately.) In steady state ac and transient analysis the two parts of the problem are solved simultaneously. See The Lossy Dielectric Option.
The following chapters of this Reference Manual describe the Opera-2d in detail. Chapters 2 describes the Command Line and Graphical User Interfaces and Chapter 3 describes the commands which are used to prepare data for and process the results from the analysis programs which are described in Chapter 4.