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Controlled system - Closed loop system

  1. Apr 4, 2014 #1


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    I have this assignment (First problem - exercise 2 - dias 7)

    Which i am having some problems solving.
    I am stuck at B)

    So far i tried to solve the problem, by calculating the distance from origin to the breakaway point, by diff. , and then using Tan(ArcCos(0.707)) * breakaway to get the jw coordinate for the pole.

    With the σ and jw for the pole, I then solve K2 for the charactic equation.

    where i get the value K2 = 6.23475*10^6
    calc: showing ch. eq => Redbox indicate S, and bluebox indicate jw value

    Jw calculation: http://snag.gy/oZ4u9.jpg
    But according to solution manual it should be 81000..

    I don't see where i am going wrong.
    Last edited: Apr 4, 2014
  2. jcsd
  3. May 4, 2014 #2
    I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?
  4. May 5, 2014 #3
    might help if you can post a pdf of the original assignment. Cutepdf or pdf995 printer emulator can convert any document to a pdf file. I don't have Office to view your assignment, others may have the same problem. The flexibility of the PDF995 is it will work with any program even compilers, as its just a printer emulator

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