FEM EquationElectrostatic/ru: Difference between revisions
(Created page with "==Описание==") |
(Updating to match new version of source page) |
||
(17 intermediate revisions by 4 users not shown) | |||
Line 1: | Line 1: | ||
<languages/> |
<languages/> |
||
{{UnfinishedDocu{{#translation:}}}} |
|||
<div class="mw-translate-fuzzy"> |
|||
{{Docnav/ru |
{{Docnav/ru |
||
|[[FEM_EquationElectricforce/ru|Electricforce equation]] |
|||
|[[FEM_EquationElasticity/ru|Equation elasticity]] |
|||
|[[FEM_EquationFlow/ru|Flow equation]] |
|||
|[[FEM_EquationFluxsolver/ru|Equation fluxsolver]] |
|||
|[[ |
|[[FEM_Workbench/ru|FEM]] |
||
|IconL= |
|IconL=FEM_EquationElectricforce.svg |
||
|IconR=FEM_EquationFlow.svg |
|||
|IconC=Workbench_FEM.svg |
|IconC=Workbench_FEM.svg |
||
|IconR=Fem-equation-fluxsolver.svg |
|||
}} |
}} |
||
</div> |
|||
<div class="mw-translate-fuzzy"> |
|||
{{GuiCommand/ru |
{{GuiCommand/ru |
||
|Name=FEM EquationElectrostatic |
|Name=FEM EquationElectrostatic |
||
Line 15: | Line 18: | ||
|Icon=Fem-equation-electrostatic.svg |
|Icon=Fem-equation-electrostatic.svg |
||
|MenuLocation= Solve → Equation electrostatic |
|MenuLocation= Solve → Equation electrostatic |
||
|Workbenches=[[ |
|Workbenches=[[FEM_Workbench/ru|FEM]] |
||
|Shortcut= |
|Shortcut= |
||
|SeeAlso=[[FEM_tutorial/ru|FEM tutorial]] |
|SeeAlso=[[FEM_tutorial/ru|FEM tutorial]] |
||
}} |
}} |
||
</div> |
|||
<div class="mw-translate-fuzzy"> |
|||
==Описание== |
|||
В разработке... |
|||
</div> |
|||
For info about the math of the equation, see the [http://www.elmerfem.org/blog/documentation/ Elmer models manual], section ''Electrostatics''. |
|||
ToDo |
|||
==Usage== |
==Usage== |
||
# After adding an Elmer solver as described [[FEM_SolverElmer#Equations|here]], select it in the [[Tree_view|tree view]]. |
|||
<br /> |
|||
# Now either use the toolbar button [[Image:FEM_EquationElectrostatic.svg|24px]] or the menu {{MenuCommand|Solve → Electromagnetic Equations → Electrostatic equation}}. |
|||
# Change the [[#Solver_Settings|equation's solver settings]] or the [[FEM_SolverElmer_SolverSettings|general solver settings]] if necessary. |
|||
==Solver Settings== |
|||
⚫ | |||
|[[FEM_EquationElasticity|Equation elasticity]] |
|||
For the general solver settings, see the [[FEM_SolverElmer_SolverSettings|Elmer solver settings]]. |
|||
|[[FEM_EquationFluxsolver|Equation fluxsolver]] |
|||
|[[FEM_Module|FEM]] |
|||
The electrostatic equation provides these special settings: |
|||
|IconL=Fem-equation-elasticity.svg |
|||
* {{PropertyData|Calculate Capacitance Matrix}}: Calculates the capacitance matrix. The matrix contains the point charges of the mesh knots. |
|||
* {{PropertyData|Calculate Electric Energy}}: Calculates the [https://en.wikipedia.org/wiki/Electric_potential_energy electric potential energy]. |
|||
* {{PropertyData|Calculate Electric Field}}: Calculates the [https://en.wikipedia.org/wiki/Electric_field electric field]. |
|||
* {{PropertyData|Calculate Electric Flux}}: Calculates the [https://en.wikipedia.org/wiki/Electric_flux electric flux]. |
|||
* {{PropertyData|Calculate Surface Charge}}: Calculates the [https://en.wikipedia.org/wiki/Surface_charge surface charge]. |
|||
* {{PropertyData|Capacitance Matrix Filename}}: File in which the capacitance matrix is being saved. It is only used if {{PropertyData|Calculate Capacitance Matrix}} is set to ''true''. |
|||
* {{PropertyData|Constant Weights}}: If constant weighting for results is used. |
|||
* {{PropertyData|Potential Difference}}: Potential difference in Volt for which the capacitance is calculated. It is only used if {{PropertyData|Calculate Capacitance Matrix}} is set to ''false''. Therefore in fact this setting specifies the voltage between the electrodes of a simple capacitor. Note that the given voltage has to be consistent with the potentials defined in the boundary conditions. |
|||
==Analysis Feature Information== |
|||
The electrostatic equation takes the following analysis features into account if they are set: |
|||
* [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|Electrostatic potential boundary condition]] |
|||
* [[Image:FEM_ConstantVacuumPermittivity.svg|24px]] [[FEM_ConstantVacuumPermittivity|Constant vacuum permittivity]] |
|||
===Note=== |
|||
Except for calculations in 2D, for [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential boundary conditions]] it is important that they act on a face or body. Boundary conditions in 3D set to lines or vertices are not recognized by the Elmer solver. |
|||
==Results== |
|||
The available results depend on the [[#Solver_Settings|solver settings]]. If none of the {{PropertyData|Calculate *}} settings was set to ''true'', only the electric force density and the electric potential are calculated. Otherwise also the corresponding results will be available. |
|||
The possible results are: |
|||
* Electric energy density in <math>\rm J/m^3</math> |
|||
* Electric field in <math>\rm V/m</math> |
|||
* Electric flux in <math>\rm A\cdot s/m^2</math> |
|||
* Electric force density in <math>\rm N/m^2</math> |
|||
* Potential in <math>\rm V</math> |
|||
* Potential loads in <math>\rm C</math> |
|||
<div class="mw-translate-fuzzy"> |
|||
⚫ | |||
|[[FEM_EquationElectricforce/ru|Electricforce equation]] |
|||
|[[FEM_EquationFlow/ru|Flow equation]] |
|||
|[[FEM_Workbench/ru|FEM]] |
|||
|IconL=FEM_EquationElectricforce.svg |
|||
|IconR=FEM_EquationFlow.svg |
|||
|IconC=Workbench_FEM.svg |
|IconC=Workbench_FEM.svg |
||
|IconR=Fem-equation-fluxsolver.svg |
|||
}} |
}} |
||
</div> |
|||
{{FEM Tools navi{{#translation:}}}} |
{{FEM Tools navi{{#translation:}}}} |
||
{{Userdocnavi{{#translation:}}}} |
{{Userdocnavi{{#translation:}}}} |
||
{{clear}} |
Latest revision as of 13:23, 24 November 2023
|
Системное название |
---|
FEM EquationElectrostatic |
Расположение в меню |
Solve → Equation electrostatic |
Верстаки |
FEM |
Быстрые клавиши |
Нет |
Представлено в версии |
- |
См. также |
FEM tutorial |
В разработке...
For info about the math of the equation, see the Elmer models manual, section Electrostatics.
Usage
- After adding an Elmer solver as described here, select it in the tree view.
- Now either use the toolbar button
or the menu Solve → Electromagnetic Equations → Electrostatic equation.
- Change the equation's solver settings or the general solver settings if necessary.
Solver Settings
For the general solver settings, see the Elmer solver settings.
The electrostatic equation provides these special settings:
- ДанныеCalculate Capacitance Matrix: Calculates the capacitance matrix. The matrix contains the point charges of the mesh knots.
- ДанныеCalculate Electric Energy: Calculates the electric potential energy.
- ДанныеCalculate Electric Field: Calculates the electric field.
- ДанныеCalculate Electric Flux: Calculates the electric flux.
- ДанныеCalculate Surface Charge: Calculates the surface charge.
- ДанныеCapacitance Matrix Filename: File in which the capacitance matrix is being saved. It is only used if ДанныеCalculate Capacitance Matrix is set to true.
- ДанныеConstant Weights: If constant weighting for results is used.
- ДанныеPotential Difference: Potential difference in Volt for which the capacitance is calculated. It is only used if ДанныеCalculate Capacitance Matrix is set to false. Therefore in fact this setting specifies the voltage between the electrodes of a simple capacitor. Note that the given voltage has to be consistent with the potentials defined in the boundary conditions.
Analysis Feature Information
The electrostatic equation takes the following analysis features into account if they are set:
Note
Except for calculations in 2D, for electrostatic potential boundary conditions it is important that they act on a face or body. Boundary conditions in 3D set to lines or vertices are not recognized by the Elmer solver.
Results
The available results depend on the solver settings. If none of the ДанныеCalculate * settings was set to true, only the electric force density and the electric potential are calculated. Otherwise also the corresponding results will be available.
The possible results are:
- Electric energy density in
- Electric field in
- Electric flux in
- Electric force density in
- Potential in
- Potential loads in
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- Geometrical: Plane rotation, Section print, Transform
- Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight
- Thermal: Initial temperature, Heat flux, Temperature, Body heat source
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types
![](/images/thumb/9/94/User_hub.png/24px-User_hub.png)
- Начинающим
- Установка: Загрузка, Windows, Linux, Mac, Дополнительных компонентов, Docker, AppImage, Ubuntu Snap
- Базовая: О FreeCAD, Интерфейс, Навигация мыши, Методы выделения, Имя объекта, Настройки, Верстаки, Структура документа, Свойства, Помоги FreeCAD, Пожертвования
- Помощь: Учебники, Видео учебники
- Верстаки: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework