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Use RBE3 to connect Conm2

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Nuaaer

Nuaaer

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Jan 27, 2021
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Hi，Guys!

In FE model, I use the 0d element "CONM2" to ensure that the center of mass and inertia of the model do not change and use the 1d element "RBE3" to connect "CONM2" to the rest of the model. After it, I will use HyperMesh to output the mnf file, which is used for rigid-flexible coupled simulation. Does the connection of "rbe3" cause the "CONM2" to vibrate back and forth when the model is impacted?

Thanks for your answer!
 
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