Tim,
Thanks for your info.
Is there any limitation for equation (or assumption)? Would this equation be applicable to PSD profile which is not rectangular shape (e.g. trapezoid with, say, 3 DB up and down),
Regards,
Hi CESSNA1,
I am not sure if I follow....
I was doing this to find the Displacement
For the range between 3 to 20 Hz
Grms = sqrt (0.03*(20-3))=0.714
Also, as G=(Af^2)/9.8; Where A is displacement,
f is frequency.
At f = 3 (the max displacement),
A =...
Hi CESSNA1,
Thanks for your response, really appreciated.
It is possible to show how those 0.25g and 0.346g and 0.2 inch displacement arrived. It will help me next time.
Also, is the displacement takes into account the 3 sigma factor? How would this affect your calculation?
I start worrying...
Hello, we have a request from our customer to perform random vibration test on aerospace black box. The PSD is as follows:
From 3 to 20 Hz, PSD = 0.03
From 20 to 2000 Hz, PSD = 0.06
Can any people help to determine the worse case input vibration displacement on the shaker table in order to...
