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Static analysis failed due to unconstrained model

DI_9912544
1-Newbie

Static analysis failed due to unconstrained model

I am using Creo Simulate 3.0 M110

I would like to perform a mechanical simulation on a part. I put a displacement on a surface and 2 forces on 2 different points.
There are no other parts, so I didn't set any interface.
I tried to run a Static analysis, linear, multipass, with the constraints and forces selected.
It ends abnormally and say:
"The design study terminated abnormally. The model is insufficiently constrained for the analysis. Please review the element connections, properties, and constraints. If this is a modal analysis, then you may be able to obtain a solution by requesting additional modes.
The unconstrained degree of freedom can be seen by running a constrained Modal Analysis with rigid mode search. Animating the rigid modes will display the unconstrained degrees of freedom. If the error still occurs, then the issue could be caused by material properties or unattached spring/mass idealizations."
But when I try to run the modal analysis it seems to freeze.
What I can do?


Here are the errors that I faced
The design study terminated abnormally.

The model is insufficiently constrained for the analysis.
Please review the element connections, properties, and
constraints. If this is a modal analysis, then you may
be able to obtain a solution by requesting additional
modes.


The unconstrained degree of freedom can be seen by running
a constrained Modal Analysis with rigid mode search.
Animating the rigid modes will display the unconstrained
degrees of freedom. If the error still occurs, then the
issue could be caused by material properties or unattached
spring/mass idealizations.

1 REPLY 1
Chris3
19-Tanzanite
(To:DI_9912544)

Have you eliminated small surfaces you don't need? Chamfers, small holes, etc?

 

Do you have any geometry that is not attached to your main geometry that has the constraint?

 

Is the constraint all 6 degrees of freedom?

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