Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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

  1. Sep 7, 2011 #1
    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.

    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

    Thanks to anyone who is willing to contribute!
    Last edited: Sep 7, 2011
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?