Acceleration time history after Fourier transform into frequency amplitude, frequency, what is the frequency, amplitude and mean? Why don't the maximum amplitude and the maximum acceleration?

CodePudding user response:

Frequency should be have a lot of, not equal to 0.5 HZ, 1 HZ,... And see if you pass the parameters of FFT
Is corresponding to each frequency amplitude and phase of the
All frequency waveform is original acceleration waveform (of course, but not identical)