Finite element simulation, Abaqus

[1366060]

I am modeling inner grooved tube spinning process in ABAQUS/Explicit, There has been attached a schematic illustration of my model. To reduce the simulation time rollers are chosen to rotate around the tube rather than rotating tube itself. Roller reference points are located on tube axis to able the roller rotate around tube axis.In post processing part I want to extract reaction forces at roller reference point, but they are somehow meaningless and there is a lot of serrations. Is there any thing wrong? maybe about the coordinate system? I think because of rotation of rollers, it seems that I have to use a specific strategy to extract reaction forces, but which? 

Any suggestion would really be appreciated. 

 

[Mustaine3]

Since we don't know how you modeled the problem in detail, we can not say whats wrong.

In general it looks not so complicated: 2D, one deformable, 3 rigids, 3 connectors, contact, double precision for Explicit, ...