Good day,
Is it possible within PrePoMax to somehow model a ‘revolute’ joint that would emulate the presence of a shaft (with clearance fit or bearing) and allow the journals of the two parts to revolve independently of each other - Note that these are two independent parts that also translate down together when the load is applied to the top plate (first image).?
I have also looked through the Calculix manual for keywords and cannot find anything. I realise that I may need to look at Equation constraints, but not sure whether it would work in a case where the entire assembly translates.
I have used Rigid Bodies which connect the Reference Points to the journal nodes, but this is obviously rigid and not what I am looking for (third image).
Because of the rigid setup, I am probably getting higher than expected stresses at the edges between the journals in the lower clevis, which is meant to rotate more than the upper (last image).
Perhaps this could also be done with a rotational spring connecting two reference points, but I understand that this is not yet available in Calculix either.
PS. This is a 1/4 symmetrical model of a crane bogey (downloaded from GrabCad).
