Hi everyone!
Now, i reading a book "modal testing: theory and practice" by Prof D.J.Ewin. And in this book, Prof D.J.Ewin wrote:" those with extremely light damping, for which measurements at resonance are inaccurate and difficult to obtain".
And, i understood that, when perform a modal testing for extremely light damping structures, results that obtained from measurements are inaccurate and of cause is difficult to obtain these results.
Yes, Of course, may be i understood wrong meaning of this sentence.
So Can you explain to me?
Thank you so much.
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