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Vibration Analysis, Eigenvalues

  1. Jan 30, 2013 #1
    Hello,

    I have a 3D COMSOL model which I am using for the purpose of vibration analysis.
    Up to now I've got analytical eigenvalues using COMSOL with MATLAB. I have to correlate the results with the measured eigenvalues results, using MAC criterion.
    The problem is that my analytical results are in real numbers but the measured results are complex numbers and I don't know why :(
    I used “mphinterp” command in MATLAB to compute the eigenvalues.
    Could anyone give me some hits how to do this correlation?

    Cheers,
    Nazi
     
  2. jcsd
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