Hello,
I would like to simulate a rotor dynamic (crankshaft + flywheel) in Radioss.
I use hex8 + rbe2 elements in this model.
I imposed the INITVEL AROUND AN AXIS to all nodes of model and the IMPVEL to the center node of flywheel (by rbe2).
The kinematic solution is ok, but if I plot the reaction force on supports there is an initial transient of “high force” before to converge at the theoretical value of force (mass * cog radius * omega^2)
In the model I use the Ralyeigh damping with alpha and beta values in order to obtain the damping target on the first mode of system.
Is there a simple method in Radioss to initialize the centrifugal load on system (similar to INITVEL for kinematic condition)?
At the moment I use the Radioss2018 format version with Hypermesh 2017.3
Thank You
Vincenzo
