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# RBE3 in superelement model

Experimenter

Hello everybody,

I have to compute a superelement analysis with NX Nastran 10.0. I import different superelement in one single assemblyfem simulation and than perform all analysis.

In particular, to connect each superelement with RBE3 (not RBE2 because using this type of element introduce high stiffness near the spider!).

However I notice that the simulation 103 - Superelement do not work and the simulation fail.

Can someone help me?