I had a problem to converting spectrum data to Rms Value, i did not want the negative value to be appeared , how can i do it?
I am not sure if I understand your question. RMS means root mean squared. You will square the value, so eventually everything is positive under square root. https://en.wikipedia.org/wiki/Root_mean_square
RMS is more for summing stresses in response spectrum analysis (PSD or response spectra/earthquake say).
I think you mean amplitude.
The FRF is a complex function/number, and you are showing the imaginary part of that complex number.
Complex numbers and FRFS can be represented thus by a phase and an amplitude (positive number). Thus for complex number z:
z = x + i*y = ¦z¦*exp(i*phase),
So you need/mean the amplitude of the FRF which is:
You can set amplitude under details, options, and display in the frequency response.
Search the ansys help manual for:
Thank you for your help sir, i had change to amplitude, are you sure it indicate the RMS value, since its look too different between the imiginary result before
how can @Hadi96 ,you get a amplitude graph ?
have to apply the rotating force and fixed rotation
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