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  • Users: cotdien
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  1. cotdien

    Random excitation time history

    Hi all, Do someone know how to simulate the time history response of a structure to a random excitation. Is it true if the Spectrum analysis give only the PSD not the time history? Many thanks
  2. cotdien

    DELTIM command

    Hi all, Do someone with experience on command DELTIM can help me while doing the dynamic transient analysis. I dont understand why the time history list data gives always the sampling time step different to the one introduced in DELTIM command. Tks very much,
  3. cotdien

    Simulink vs m.file

    Hi, I generate a signal from Simulink, then I add a random noise to it by 2 ways: - Always in Simulink with the block "random number" - In workspace with the command "randn". I keep the same SNR and identify the frequencies from the noisy data, but the effect of this noise to the signal is...

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