Learning Forum

[AR]

Hello,

I have a model Static -> Modal -> Random vibration in Workbench. It is a large model, so I am expanding only the modes whose ratio of effective mass to total mass is greater than 1e-3 with the following code:
mxpand,none
SOLVE
FINISH
!
/SOLU
antype,modal,restart
mxpand,all,,,,1e-3,,EFFM
modseloption,,,,no,no,no
SOLVE

I have the "Store modal results" set to "For future Analysis". However, when finishing the PSD, I get the following error:
The result data for spsd is not contained in the result file.

I have used this same method with a harmonic and it worked fine.

What could be happening? How can I fix it but keep the part where I select what I want to expand?

[dlooman]

You didn't request stresses in the modal.  It should have been mxpand,all,,,YES,1e-3,,EFFM

[AR]

Thank you !