ANSYS Help - Angular Acceleration in ...

ANSYS Help - Angular Acceleration in a Static Structural Model

Posted in the ANSYS Forum


Pittsburgh, PA

#1 Jul 2, 2013
Hi all,

Looking for some advice on an ANSYS Workbench 14.5 static structural model I have. I have applied two APDL commands, OMEGA (rotational velocity) and DOMEGA (rotational acceleration) to my model and I am having a difficult time interpreting the results. I have it broken up into two steps, 0-1 being the velocity, then the acceleration. If my model runs for 1.2 seconds...what exactly is this telling me? Did the model reach the full angular acceleration speed? Is there a way to pull what speed it reached before it stopped converging? I understand this should be done as a transient analysis, but I was curious to see what a static model is telling me about something involving an inertial load (angular acceleration). How does ANSYS interpret a ramp in a static model? Any help would be appreciated!

Madrid, Spain

#2 Sep 28, 2013
I suppose that in the second step it will apply the torsion due to acceleration to the model (alpha times 1.2s), linearly over the time step (ramp), in the frame af the static equilibrium. I suppose that if you are sure that your model is not going to crash, it is the good way to run your FE analysis...

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