CONTROL SYSTEMS ENGINEERING
7th Edition
ISBN: 9781119185666
Author: NISE
Publisher: WILEY
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Chapter 8, Problem 9P
Figure P8.5 shows open-loop poles and zeros. There are two possibilities for the sketch of the root locus. Sketch each of the two possibilities. Be aware that only one can be the real locus for specific open-loop pole and zero values. [Section: 8.4]
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For the system represented by the following block diagram, Find
a) The Closed-loop Transfer function.
b) Characteristic equation.
c) Type and Order of the system.
c) Time-domain Specifications ( Delay Time, Peak Time, Rise Time, Settling time, and Percentage
overshoot).
R(s)
C(s)
G(s)
H(s)
Where G(s) and H(s) are given as :
324
G(s) =
s(s+6)
H(S) :
1
The open loop transfer function of a humanoid's arm control system is given as:
K
G(s) =
2
s(s + 2s + 2)
(a)
Clearly locate all poles and zeros on a linear graph paper. Provide calculations for
the following: asymptote angles, centroid for asymptotes, and departure angle from
complex pole.
(b)
Plot the complete root locus, with the locus on the real axis is clearly shown. Use
the scale of 4 cm : 1 unit for both axes and choose the longer side of the graph
paper as the real axis.
1. Give an example of open loop and closed loop system (one example each). Also state the input, control system, feedback and output parameter.
Example.
1. Open Loop - Water Heater:
Input - Water Temperature (Cold)
System - Heating Element
Output - Water Temperature (Hot)
2. Closed Loop - Air-conditioning System
Input - Desired Room Temperature
Control - Motor controller/Compressor/ACU
Feedback - Temperature Sensing
Output - Room Temperature
Chapter 8 Solutions
CONTROL SYSTEMS ENGINEERING
Ch. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - What are two ways to find where the root locus...Ch. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - How would you determine whether or not a root...
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 1PCh. 8 - Sketch the general shape of the root locus for...Ch. 8 - Prob. 3PCh. 8 - Let Gs=Ks+23s2s+6 in Figure P8.3. [Section: 8.5]...Ch. 8 - Let Gs=Ks+12s2+2s+2 with K0 in Figure P8.3....Ch. 8 - For the open-loop pole-zero plot shown in Figure...Ch. 8 - Prob. 7PCh. 8 - Prob. 8PCh. 8 - Figure P8.5 shows open-loop poles and zeros. There...Ch. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Sketch the root locus and find the range of K for...Ch. 8 - For the unity feedback system of Figure P8.3,...Ch. 8 - Prob. 16PCh. 8 - Prob. 17PCh. 8 - Given the root locus shown in Figure P8.7,...Ch. 8 - Prob. 19PCh. 8 - For the unity feedback system of Figure P8.3,...Ch. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - For the unity feedback system shown in Figure 8.3,...Ch. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 45PCh. 8 - Repeat Problem 3 but sketch your root loci for...Ch. 8 - Prob. 47PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 55PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59PCh. 8 - Wind turbines, such as the one shown in Figure...Ch. 8 - Prob. 62PCh. 8 - Prob. 67PCh. 8 - Prob. 68PCh. 8 - Prob. 70PCh. 8 - Prob. 72P
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