FEM ConstraintTransform

Constraint section print

Constraint fixed

FEM

FEM ConstraintTransform
Menu location
Model → Geometrical analysis features → Local coordinate system
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM Constraint plane rotation

Solvers
CalculiX

Description

Transforms the coordinate system of a face to a user-defined coordinate system - rectangular or cylindrical. This coordinate system affects the boundary condition and load definitions. For example, you can use it to fix the displacements in the normal direction of an inclined face. Just select the proper component of the displacement boundary condition.

Usage

1. Apply the displacement boundary condition to a face first.
2. There are several ways to invoke the command:
   • Press the Local coordinate system button.
   • Select the Model → Geometrical analysis features → Local coordinate system option from the menu.
3. Select rectangular or cylindrical transform. The former can be applied to any face, the latter is available only for the cylindrical faces.
4. Select a face to which the displacement boundary condition was previously applied. Press the Add button.
5. For rectangular transform, specify a rotation about each of the three axes. Arrows displayed on the face represent the new directions (X - red, Y - green and Z - blue).

Limitations

• Cylindrical transform can be applied only to cylindrical faces.

Notes

• This feature can be used to simulate torsion but only for cylindrical bars or parts containing such bars used to transmit torque.
• The feature uses the *TRANSFORM card in CalculiX.

Constraint section print

Constraint fixed

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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• 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

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