FEM EquationElectricforce/de: Difference between revisions
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|[[FEM_EquationElectrostatic| |
|[[FEM_EquationElectrostatic/de|GleichungElektrostatik]] |
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|[[FEM_EquationMagnetodynamic| |
|[[FEM_EquationMagnetodynamic/de|GleichungElektrodynamik]] |
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|[[FEM_Workbench|FEM]] |
|[[FEM_Workbench/de|FEM]] |
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|IconL=FEM_EquationElectrostatic.svg |
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==Beschreibung== |
==Beschreibung== |
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Diese Gleichung beschreibt die elektrostatische Kraft, die auf einer Oberfläche wirkt. |
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This equation describes the electrostatic force acting on a surface. |
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For info about the math of the equation, see the [http://www.elmerfem.org/blog/documentation/ Elmer models manual], section ''Electrostatic force''. |
For info about the math of the equation, see the [http://www.elmerfem.org/blog/documentation/ Elmer models manual], section ''Electrostatic force''. |
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<span id="Usage"></span> |
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==Anwendung== |
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# After adding an Elmer solver as described [[FEM_SolverElmer#Equations|here]], select it in the [[Tree_view|tree view]]. |
# After adding an Elmer solver as described [[FEM_SolverElmer#Equations|here]], select it in the [[Tree_view|tree view]]. |
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# Change the [[#Solver_Settings|equation's solver settings]] or the [[FEM_SolverElmer_SolverSettings|general solver settings]] if necessary. |
# Change the [[#Solver_Settings|equation's solver settings]] or the [[FEM_SolverElmer_SolverSettings|general solver settings]] if necessary. |
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The electricforce equation only calculates the force for faces with a [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential |
The electricforce equation only calculates the force for faces with a [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential boundary condition]] if the boundary condition's option '''Calculate Electric Force''' is used. |
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==Solver Settings== |
==Solver Settings== |
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The electricforce equation provides this special setting: |
The electricforce equation provides this special setting: |
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* {{PropertyData|Exec Solver}}: By default the equation is only solved after a |
* {{PropertyData|Exec Solver}}: By default the equation is only solved after a time step passed. This means it is first solved after the solution of other equations converged. When the setting is ''Always'' the equation is solved after every iteration within a time step. (For [[FEM_SolverElmer_SolverSettings#Type|steady-state]] simulations the whole simulation is one time step.) |
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==Analysis Feature Information== |
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The electricforce equation does not have own |
The electricforce equation does not have its own analysis features. It takes the [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential boundary condition]] from the [[Image:FEM_EquationElectrostatic.svg|24px]] [[FEM_EquationElectrostatic|Electrostatic equation]]. In the boundary condition it is important to use the option '''Calculate Electric Force'''. |
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<span id="Result"></span> |
<span id="Result"></span> |
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==Ergebnis== |
==Ergebnis== |
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Das Ergebnis it die elektrische Kraft in <math>\rm N/m^2</math>. |
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|[[FEM_EquationElectrostatic/de|GleichungElektrostatik]] |
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|[[FEM_EquationMagnetodynamic/de|GleichungElektrodynamik]] |
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Latest revision as of 13:23, 24 November 2023
FEM GleichungElektrischeKraft |
Menüeintrag |
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Lösen → Electromagnetic Equations → Gleichung für elektrische Kraft |
Arbeitsbereich |
FEM |
Standardtastenkürzel |
Keiner |
Eingeführt in Version |
0.19 |
Siehe auch |
FEM GleichungElektrostatik |
Beschreibung
Diese Gleichung beschreibt die elektrostatische Kraft, die auf einer Oberfläche wirkt.
For info about the math of the equation, see the Elmer models manual, section Electrostatic force.
Anwendung
- After adding an Elmer solver as described here, select it in the tree view.
- Either use the toolbar button or the menu Solve → Electromagnetic Equations → Electricforce equation.
- Now either use the toolbar button or the menu Solve → Electromagnetic Equations → Electrostatic equation. This is important because the electricforce equation needs the potential field calculated by the Electrostatic equation.
- Change the equation's solver settings or the general solver settings if necessary.
The electricforce equation only calculates the force for faces with a electrostatic potential boundary condition if the boundary condition's option Calculate Electric Force is used.
Solver Settings
For the general solver settings, see the Elmer solver settings.
The electricforce equation provides this special setting:
- DatenExec Solver: By default the equation is only solved after a time step passed. This means it is first solved after the solution of other equations converged. When the setting is Always the equation is solved after every iteration within a time step. (For steady-state simulations the whole simulation is one time step.)
Analysis Feature Information
The electricforce equation does not have its own analysis features. It takes the electrostatic potential boundary condition from the Electrostatic equation. In the boundary condition it is important to use the option Calculate Electric Force.
Ergebnis
Das Ergebnis it die elektrische Kraft 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
- Erste Schritte
- Installation: Herunterladen, Windows, Linux, Mac, Zusätzlicher Komponenten, Docker, AppImage, Ubuntu Snap
- Grundlagen: Über FreeCAD, Graphische Oberfläche, Mausbedienung, Auswahlmethoden, Objektname, Programmeinstellungen, Arbeitsbereiche, Dokumentstruktur, Objekteigenschaften, Hilf FreeCAD, Spende
- Hilfe: Tutorien, Video Tutorien
- Arbeitsbereiche: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework