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Hi Altruists,
I have a MATLAB plot which I exported from Digsilent software and I am willing to calculate the damping ratio and natural frequency. What are the commands for that, may I know?
Regards,
Kamrul Hasanuntitled.jpg

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sudhir ravipudi
sudhir ravipudi am 25 Jul. 2020
Use prony analysis using prony Toolbox. That will give your requirements.
Regards,
R Sudhir

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KSSV
KSSV am 7 Jan. 2020

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For natural frequency you need to look into fft.
Damping ratio can be calculated using logarithamic decrement approach. https://en.wikipedia.org/wiki/Logarithmic_decrement

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