FEM ConstraintDisplacement: Difference between revisions
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|[[FEM_ConstraintFixed|Constraint fixed]] |
|[[FEM_ConstraintFixed|Constraint fixed]] |
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|[[FEM_ConstraintContact|Constraint contact]] |
|[[FEM_ConstraintContact|Constraint contact]] |
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|IconL=FEM_ConstraintFixed.svg |
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|Name=FEM ConstraintDisplacement |
|Name=FEM ConstraintDisplacement |
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|MenuLocation=Model → Mechanical Constraints → Constraint displacement |
|MenuLocation=Model → Mechanical Constraints → Constraint displacement |
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+ | |Workbenches=[[FEM_Workbench|FEM]] |
|Shortcut= |
|Shortcut= |
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|SeeAlso=[[FEM_tutorial|FEM tutorial]] |
|SeeAlso=[[FEM_tutorial|FEM tutorial]] |
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+ | # There are several ways to invoke the command: |
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⚫ | |||
+ | #* Press the {{Button|[[Image:FEM_ConstraintDisplacement.svg|16px]] [[FEM_ConstraintDisplacement|FEM ConstraintDisplacement]]}} button. |
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⚫ | |||
⚫ | |||
# Choose a degree of freedom or prescribe a displacement. |
# Choose a degree of freedom or prescribe a displacement. |
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|[[FEM_ConstraintFixed|Constraint fixed]] |
|[[FEM_ConstraintFixed|Constraint fixed]] |
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|[[FEM_ConstraintContact|Constraint contact]] |
|[[FEM_ConstraintContact|Constraint contact]] |
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+ | |[[FEM_Workbench|FEM]] |
|IconL=FEM_ConstraintFixed.svg |
|IconL=FEM_ConstraintFixed.svg |
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|IconR=FEM_ConstraintContact.svg |
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Revision as of 18:24, 21 August 2021
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Menu location |
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Model → Mechanical Constraints → Constraint displacement |
Workbenches |
FEM |
Default shortcut |
None |
Introduced in version |
- |
See also |
FEM tutorial |
Description
Creates a FEM constraint for a prescribed displacement of a selected object for a specified degree of freedom.
Usage
- There are several ways to invoke the command:
- Press the
FEM ConstraintDisplacement button.
- Select the Model → Mechanical Constraints →
Constraint displacement option from the menu.
- Press the
- In the 3D view select the object the constraint should be applied to, which can be a vertex (corner), edge, or face.
- Choose a degree of freedom or prescribe a displacement.
Notes
- The constraint uses the *BOUNDARY card in CalculiX. Fixing a degree of freedom is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node164.html and prescribing a displacement for a degree of freedom is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node165.html
- 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
- Without solver: Fluid boundary, Bearing, Gear, Pulley
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, CalculiX (new framework), 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

- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub