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Control systems block diagram reduction

  1. Nov 26, 2014 #1
    1. The problem statement, all variables and given/known data
    Hi

    I am having trouble simplifying the attached diagram with respect to the return summing block


    2. Relevant equations


    3. The attempt at a solution
    there shouldn't be any superposition since there is only one input signal,
    in the attached file I've simplified A to Be: G3/(G2-G2G3G4)
    would it be correct to move the pick off lines as shown?
    once the relevant block diagram rules are applied this is the point where i can't find a way to remove the summing block next to H1
     

    Attached Files:

  2. jcsd
  3. Dec 1, 2014 #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?
     
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