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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Response PSD and RMS value › Reply To: Response PSD and RMS value

May 22, 2024 at 4:40 pm
dlooman
Ansys Employee

That's not a narrow band PSD, but yes if you ran a harmonic analysis at 3 hz with the rms value and the same damping you would get a similar result to the 1 sigma PSD value.  I like this analogous solution as a check and also as a way of getting a better feel for what the PSD really is.