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Hi, My time data setting is as follows. Time step is 0.001 sec, Time range for analysis is 0~1.5 sec. (=> the number of time data is 1500) I use the 'Freq' and 'FFTmag' function in HyperGraph. The frequency data range is 0~499.51171875Hz and the number of the frequency data is 1024. (I attached the time and frequency files in .csv format.) According to the figure, Time step, Δt= 0.001 -> Bandwidth or Max Freq , F_max = 500Hz the number of time data, N = 1500 -> Spectral line, SL = 750 I think Frequency resolution(Δf) should be F_max / SL = 500/750 = 0.6667Hz. But in my data, frequency resolution is about 0.488Hz. I don't know why. What is the formula of 'Freq' and 'FFTmag' in HyperGraph? Thanks. frequency.csv time.csv
How to plot the data as shown in below figure using TCL script after .odb file is loaded in the Hypergraph2D? In Y-Type I would like to select RF2-Reaction force(Time History) , all the nodes in Y Request , Value in Y component and plot them.