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Displacements Too Large

Question asked by Nathan Cassou on Jun 18, 2014
Latest reply on Jun 19, 2014 by Jared Conway

I have a temperture probe that I am trying to set up for a fatigue study.

 

Assumptions:

 

-The probe gets up to 1200*F and then cools off when the engine shuts down

-A force is put on the tip of the probe (value unknown) as cyclic loading from a hot air stream. I have seen a sample of the probe and tips are always a bit bent after x amount of hours of use.

 

I have tried everything I know to stabilize the assembly to get reasonable results. I even tried to back off the force on the tip to around .001 lbs to eliminate the chance that it could be too much force. However I still get the "Displacement too large" error box. I have used bonded contact sets on all the parts and tried various static fixturing methods but none seemed to work. I set the solver to automatic and "Large Displacement" box checked but the simulation still fails.

 

Any thoughts?

 

SEE ATTACHED PICS

 

Nate

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