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Transfer function with non zero initial conditions

  1. Jan 13, 2016 #1
    Hello guys, I'd just like to ask how can I formulate transfer function of second order differential system when I don't have zero initial conditions?
    the equation is = y''(t) + B/m*y'(t) + k/m*y(t) = g y(0)= -L
    don't care what parameters mean .. it's supposed to be solved in general

    Thank you.
     
  2. jcsd
  3. Jan 18, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
  4. Jan 19, 2016 #3

    Krylov

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    Maybe it helps to introduce a new dependent variable ##x(t) := y(t) - y_0 - v_0t## where ##y_0## and ##v_0## are your initial position and velocity? Then rewrite the ODE in terms of ##x## with ##x(0) = 0## and ##x'(0) = 0##.
     
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