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my model miss roatation axis in ABAQUS

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1366060

Mechanical
Jul 10, 2012
25
I am doing explicit dynamic analysis of flow forming process which comprises outer diameter reduction and also thickness change of a rotating tube during the process by one or more rollers. in simulation, I want to impose rotation boundary condition around tube central axis on roller rather than imposing on tube, because the roller is modeled as discrete rigid and applying boundary condition on it reduce the computation time. in ABAQUS, when I impose rotation boundary condition on roller and introduce the tube central coordinate system as CSYS, nevertheless, roller still rotate around its axis. actually Abaqus does'nt recognize tube central axis as rotation axis?
My input file has been attached for further information.
can anyone help me?
any help would really be appreciated.
 
 http://files.engineering.com/getfile.aspx?folder=ff03b696-6180-4205-9332-53b70f993180&file=SING-ROLLER.inp
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