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Model runs for analysis but not for optimization

User: "Stéphane C."
New Altair Community Member
Updated by Stéphane C.

Hello,

I try to run  an optimization run (see file attached).

When running analysis it's okay, but when running optimization I have the message

The rotational displacement has large magnitude, -178164 degrees

At beginning of .out of optimization I have this information:

*** INFORMATION # 815
 The total number of rigid elements, whose rotational dependent d.o.f.
 are removed because there is no need to constrain those d.o.f., is 3.

 I don't understand if my optimization error is coming from this automatic removal or from something else?

Thank you very much!

Stéphane.

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