FEM ConstraintDisplacement

From FreeCAD Documentation
Jump to: navigation, search
Other languages:
English • ‎français • ‎italiano • ‎română • ‎русский

FEM ConstraintDisplacement.png FEM ConstraintDisplacement

Menu location
Model → Mechanical Constraints → Constraint displacement
Workbenches
FEM
Default shortcut
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.

How to use

  1. Click on FEM ConstraintDisplacement.png or choose ModelMechanical ConstraintsFEM ConstraintDisplacement.png Constraint displacement from the top menu.
  2. Select in the 3D-view the object the constraint should be applied to, which can be
    1. vertices (corners)
    2. edges
    3. faces
  3. Choose a degree of freedom to fix or prescribe a displacement to.

Limitations

Notes

  1. 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