I am having trouble with some of my homework. I am not quite sure how to find the damping ratio from a third order system when the transfer function (of s) is the only information supplied. Could anyone help me with this? I would like a method that would work with any nth order system, although my current problem is third order.(adsbygoogle = window.adsbygoogle || []).push({});

Also, I must find the damping ratio WITHOUT using differential equations to convert the transfer function to a function of time.

Here is a transfer function that may be used as an example:

s/2 + 1

-------------------------

(s/40+1)[(s/4)^2+s/4+1]

Thanks to anyone who is willing to contribute!

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# Finding the damping ratio (zeta) of an nth order system from a transfer function

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