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[FAQ]

This is doable with a command snippet below each condensed part (with APDL of course). Be careful, at this level we are only at the generation pass level, therefore the only supported command are the following ones : ALPHAD BETAD MP,ALPD MP,BETD TB,SDAMP,,,,ALPD TB,SDAMP,,,,BETD Basically, for a 2% damping occuring for instance at 100 hz, we might put BETAD,0.02/(Pi*100) below the condensed part. Please also keep in mind that the use pass is performed in RBD and all the existing damping coefficients (for instance “C” for any joint) are still available. Special damping features (in the use pass) need to be used and defined with python scripting only (because RBD solver context)