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Meaning of "Number of Generalized DOF" parameter - SOL103 Superelements

Valued Contributor
Valued Contributor

Hi,

I am using NX Nastran 12, for model substructing using Craig Bampton method (i.e. SOL 103

 Superlement).

  1. What does it mean "Number of Generalized DOF" in a SOL103 Superelements? 
  2. As default, this parameters is equal to 500. Is there a rule of thumb to evalutate this parameter for each FE model?

 

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I found somethink in this or this old NX Help , but I do not understand.

Regars,

A