FEM_ConstraintForce.md

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- GuiCommand:
   Name:FEM ConstraintForce
   MenuLocation:Model → Mechanical Constraints → Constraint force
   Workbenches:[FEM](FEM_Workbench.md)
   Shortcut:
   SeeAlso:[FEM ConstraintPressure](FEM_ConstraintPressure.md)
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FEM ConstraintForce

Description

This command applies a force of given value [N] to selected target geometry.

Usage

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

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documentation index > FEM ConstraintForce