Unformatted text preview: et all the other inputs in the 28. Find the condition on be zero (w = v = 0). By deﬁnition that we see that E/R = system. is stable. start
the parameters a and b such of e, the closedloop 1 Y /R Hence, we
block diagram to
writing down the equation for Y as follows: 29. What is the system type for tracking? Assume stability and a 6= 0.
Y = GU = GD(R H Y ). 30. What are the steady state errors for the step, ramp, and parabolic reference inputs? Assume that
7
a 6= 0, a 6= 10, and the system is stable.
kp, kv, ka
31. Assume a 6= 0 and H (s) = 1, and ﬁnd the error constants.
e(inf)=s.E(s)
32. Assume a 6= 0 and H (s) = 1, and ﬁnd the steady state errors for the step, ramp, and parabolic inputs.
33. Assume that the closedloop system is stable, r = v = 0, and a 6= 0. Which of the following signals
converge(s) to zero in response to a step input in w?
(A) u (B) y (C) x (D) None of these 3 (E) All of these 34. Consider the secondorder system
G( s ) = 1
s 2 + 2⇣ s + 1 We would like to add a transfer function of...
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 Winter '09
 IDAN
 Steady State, system S, following systems

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