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by dbar
Sat Oct 06, 2018 12:00 am
Forum: FEM
Topic: CalculiX Free Rotation Axis 3D Model Large Displacement
Replies: 4
Views: 327

Re: CalculiX Free Rotation Axis 3D Model Large Displacement

I found a way to add free rotation condition around an axis without adding part to create hinge contact. For those interested you should proceed as following: Create a rigid body on the hole or surface representing you rotation axis. REF NODE and ROT NODE should be the same ass below. If REF NODE is...
by dbar
Wed Oct 03, 2018 11:31 am
Forum: FEM
Topic: CalculiX Free Rotation Axis 3D Model Large Displacement
Replies: 4
Views: 327

Re: CalculiX Free Rotation Axis 3D Model Large Displacement

Thank you fandaL I did try *transform card : Adding a local cylindrical coordinate system at the center of my hole and then apply DOF conditions with rotation coordinate free (2nd DOF) on the hole. It seemed work for small angle but when I try to reach high angle like 45° or more I had some weird de...
by dbar
Wed Oct 03, 2018 8:23 am
Forum: FEM
Topic: CalculiX Free Rotation Axis 3D Model Large Displacement
Replies: 4
Views: 327

CalculiX Free Rotation Axis 3D Model Large Displacement

Hello Everyone, 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 jo...

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