Is it possible to compare Random response data with Frequency Response
Is it possible to compare Random response data with Frequency Response
(OP)
i have two sets of data: 1) Random PSD g^2/hz data from a test we ran and 2) frequency response data from the manufacturer (i.e. acceleration versus frequeny). Is it possible to compare these two to see if over testing was done?





RE: Is it possible to compare Random response data with Frequency Response
would normally be output/input vs. frequency. Are you sure about what you have in 2) above?
RE: Is it possible to compare Random response data with Frequency Response
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
Chinese prisoner wins Nobel Peace Prize
RE: Is it possible to compare Random response data with Frequency Response
So now i have two curves. 1)freq./g**2 from random test we ran. 2) freq/g curve from vendor.
Now to compare the two do I just look at what happens at resonance of the part mounted to the chassis (which i make) and use Miles equation? Then see which gives the higher loading?
I am sure there I cannot just make a head to head comparison but only look at resonance to see if there was an overtest situation.
RE: Is it possible to compare Random response data with Frequency Response
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
Chinese prisoner wins Nobel Peace Prize