If you want to use a local coordinate system when setting constraints, first define and activate the local coordinate system.
Click
(Boundary Conditions tab > Constraints and Loads panel > Constraints > General Constraint).
Use the cross-hairs to select the location(s) for which you want to set the constraint.
Enter the required
Transitional stiffness and
Rotational stiffness values in the X, Y, and Z directions.
Click
Apply.
An appropriate constraint symbol will be displayed at each location you have constrained.
Click
Close to close the dialog.
Note: Now that you have successfully set the model constraint(s) in order to prevent rigid body motion, you can now apply the required load(s) to the model.