Bearing cage press fit (Defined Fields + Tie Constraint)

General Questions
1

Dear PrePoMax team,
I am calculating press fit of inner bearing cage on a gear, using thermal distortion (Defined Fields) to simulate press fit, and Tie Constraint to connect bearings to journals.

My question is about Displacement with Automatic Visualization.

As you can see in the attached picture, I plotted displacement according to: Underformed visualization, User Defined Factor=150, User Defined Factor=250, Automatic.

In Underformed and User Defined cases, it looks to me that the Tie Constraint is working fine, since displacements are according to my expectation.

But in Automatic visualization it looks like the bearing is shrinking abnormally and tie constraint is no more respected. I tend to think it is just a matter of the Automatic visualization, while the FEA is working properly.
But I would ask PrePoMax team, wheter you see an issue or not in the way I modeled press fit and constraint.

PRESS-FIT-DISPLACEMENTS
PRESS-FIT-DISPLACEMENTS1246×672 160 KB

Thanks in advance for support.
Regards, Umberto

2

Use true scale to see how it actually deforms. Also, automatic setting applies different scale factor each time so we don’t know how much the deformation was scaled here.