Learning Forum

[reddyramu.gundlooru]

Hello, 

I´m having trouble generating the substructuring. I used the RBE3 command to define a rigid region center node to surrounding slave nodes for a rotating shaft. for interface points(master nodes) i used MASS21 with negligible mass and inertias.  But when i imported my model from APDL to workbench and ran substructuring analysis, I got an unknown error as you can see in the image 3. If possible, Could anyone help me with the issue?

 

 

 

Thank you and best regards

Reddyramu Gundlooru

[ErKo]

 

 

Hi

I would not suggest this - there is a native and much easier approach.

So use the native workflow (gen pass and user pas inside Workbench).

See condensed parts inside Modal. We can generate and use them, or generate in another analysis and use it where ever needed via the import condensed part (RBE3, we can have a remote point with distr. or rigid behaviour – use as needed).

https://blog.ozeninc.com/resources/bottom-up-substructuring-using-cms

All the best

Erik

 

 

[reddyramu.gundlooru]

Hello,

Thank you for your response. I tried as you suggested but when i used center nodes for named selection and dropped into substructuring definition still there is question mark on analysis as you can see in the below picture.

My aim is to condense this shaft into center nodes which are connected to the surrounding nodes using RBE3 to transfer forces and moments that are applied to the center nodes. Can you please help me with this?

 

Thank you and best regards