I'm struggling on how to applied on cylindrical face on a 3D model (no beam no shell) a free rotation condition.
My model is a simply 3D mechanical part tetra mesh with a single hole inside. There is no other part or element. And I want this hole as a rotation axis like a revolute joint.
Angle amplitude around this axis will be about plus or minus 90°. So calculation will be performed with NLGEOM. And analysis is *DYNAMIC.
It is planned to couple this Calculix model with a fluid calculation analysis on SU2.
I'm used to commercial FEM soft where it is click and play for creating this kind of boundary condition. But here tried things that I saw on forum or video tutorial and none of them respond to my problem. Also I cannot tried on an another software because my coupling soft only works with Calculix.
The only way I'm seeing is to add another part like a 3D pin and add contact conditions between them.
I really would like to avoid this kind of solution in order to not slowdown solving time due to convergence issue. I would like something fast to solve.
So If someone have good ideas about this I'm more than interested!
Thank you for your help