Dirlik's method

Altair Forum User

I would like to ask how can I relate the output PSD [g^2/Hz] to [MPa^2/Hz]. I would like to do this for the output PSD from a certain input PSD [g^2/Hz] pproximating the system as a 1 DoF and for the real PSD output obtained from the experiment. Riassuming:

 

- Given an input PSD [g^2/Hz]

- I can obtain the output PSD [g^2/Hz] assuming a 1 DOF system

- I have the real output PSD [g^2.Hz] from experiment

 

How do I find the PSD [MPa^2/Hz]?