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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › PSD (acceleration, g^2/Hz) to PSD force, N^2/Hz, Random Vibration › Reply To: PSD (acceleration, g^2/Hz) to PSD force, N^2/Hz, Random Vibration

October 3, 2024 at 4:08 pm
AR
Subscriber

Hello Dlooman,

I have already tried to create an acceleration in the modal applied to the body I want using CMACEL,BODY1,9.81,9.81,9.81 and then use LVSCALE,1 in the Random vibration to apply the PSD. However, I obtained results as 0.

Looking at the solution information I saw that it interprets that all the participation factors are 0 when they are not.

How could I do this?