FEM RandbedingungKraft

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Beschränkung umwandeln

Beschränkung Druck

FEM

FEM ConstraintForce
Menu location
Model → Mechanical Constraints → Constraint force
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM tutorial

Beschreibung

Dieser Befehl wendet eine Kraft mit dem gegebenen Wert [N] auf die ausgewählte Zielgeometrie an.

Anwendung

1) Applying a force in normal direction to a face

• • In FEM workbench, click on or select Model → Mechanical Constraints → Constraint force to open Force Constraint properties dialog

• • If you have Mesh displayed, you need to hide it (select the mesh object and press spacebar or right click and select Hide item) and show the original model.
  • Click on a face to which a force should be applied. It will appear in the list of geometrical objects.
  • Fill in Line load with a force value in [N] (attention: Not in [N/m])

• • Direction: In a typical case, you'll click this field empty to apply a force in normal direction to the face. You can revert the direction of the force by clicking Reverse direction. In other cases, you need to pick a face or plane, which is in normal to the force direction (it could differ from the face, to which the force is being applied)
  • Click Close to finish the dialog and create ConstraintForce object

2) Applying a force in to line in selected direction

• • In FEM workbench, click on or select Model → Mechanical Constraints → Constraint force to open Force Constraint properties dialog
  • If you have Mesh displayed, you need to hide it (select the mesh object and press spacebar or right click and select Hide item) and show the original model.
  • Click on a line segment to which a force should be applied. It will appear in the list of geometrical objects.
  • Fill in Area load with a force value in [N]
  • Direction: Now, with line segment selected, it si likely that the force is applied in a wrong direction. We need to specify the direction by clicking the button Direction and then clicking a face pointing with its normal to the direction of the force (or reversed direction). Again, you can revert the direction of the force by clicking Reverse direction.

• • Click Close to finish the dialog and create ConstraintForce object

Constraint transform

Constraint pressure

FEM

FEM

• FEM Analysis

• Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor

• Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)

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Constraints

• Electromagnetic: Electrostatic potential, Current density, Magnetization

• Fluid: Initial flow velocity, Initial pressure, Flow velocity

• 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

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• Mesh: Mesh Netgen, Mesh GMSH, Mesh boundary layer, Mesh region, Mesh group, Nodes set, Mesh to mesh

• 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

• Utilities: Clipping plane, Remove clipping planes, Open FEM examples; Mesh clear, Mesh display info

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• Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types

Anwenderdokumentation

• 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

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• Hilfe: Tutorien, Video Tutorien
• Arbeitsbereiche: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web

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• Erweiterung: Erweiterungsverwalter, Externe Arbeitsbereiche, Skripten und Makros

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• Hubs: Anwenderzentrum, Hauptanwenderzentrum, Entwicklerzentrum