Learning Forum

[sentenza]

Good morning, I'm doing a submodeling analysys on a small part of a shaft where I have keyway and seeger groove. The full model is a cutted symmetric model. The sub model part has some contact region of the full model, has one remote displacement, has one symmetry plane coming from the full model.

When I right click on submodeling-insert I have 3 options: insert cut boundary constraints, insert cut boundary remote force, insert cut boundary remote constraints.

Can you explain me how to proceed? in all the tutorial I've seen there was only insert displacement and it was simpler

thanks for your help

 

[peteroznewman]

Please insert images showing your full model and sub-model in detail.

[sentenza]

this is full model (axialsymmetric) with remote displacement on bearings and pressure load on top of rotor

 

this is the part of shaft i want to analize

[sentenza]

How to set up sub-modeling and insert displacement for the above shaft? Which face i have to select to transfer displacement: Symmetry plane, contact area, cutted face? Thanks

[peteroznewman]

Have you solved the coarse model?  You must have a solution on the coarse (large) model.

You must cut away from the coarse model, using planes or surfaces, all the parts that are touching. You can't just pull the shaft out on its own.

Show the solution of the coarse model and the geometry of the cut away submodel.

[sentenza]

Already done, the only problem I have is that when I right click on submodeling-insert I have 3 options: insert cut boundary constraints, insert cut boundary remote force, insert cut boundary remote constraints. I choose the first option, but I don't know which face to select

[peteroznewman]

insert cut boundary constraint.

You pick the faces that were created when you cut from the full model.

[AmbarNaik13]

What do these three options mean? -  insert cut boundary constraints, insert cut boundary remote force, insert cut boundary remote constraints.

 

In earlier version of Ansys there was only one option of applying displacement.

 

Also,  I read in some technical papers that if the stiffness of the cut model changes due to changes in geometry, it is recommended to use force based sub-model. How do one create force based sub-model in latest version of Ansys?