TEST BANK FOR Modern control systems solution manual 14TH edtion

Solution Manual for Modern Control Systems,
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14th Global Edition By Richard C. Dorf
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Chapters 1 - 13, Complete
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,T A B L E - O F - C O N T E N T S
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1. Introduction to Control Systems ............................................................. 1
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2. Mathematical Models of Systems ......................................................... 20
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3. State Variable Models............................................................................ 79
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4. Feedback Control System Characteristics........................................... 126
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5. The Performance of Feedback Control Systems............................... 166
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6. The Stability of Linear Feedback Systems ...................................... 216
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7. The Root Locus Method .................................................................... 257
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8. Frequency Response Methods ............................................................. 359
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9. Stability in the Frequency Domain.................................................... 420
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10. The Design of Feedback Control Systems ........................................ 492
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11. The Design of State Variable Feedback Systems ............................ 574
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12. Robust Control Systems ..................................................................... 633
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13. Digital Control Systems...................................................................... 691
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, C H A P T E R
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Introduction to Control Systems e e e




There are, in general, no unique solutions to the following exercises and
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problems. Other equally valid block diagrams may be submitted by the
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student.
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Exercises
E1.1 A microprocessor controlled laser system:
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Error Current i(t) e

Desired Power
epower - out
eoutput

Measured
e power




E1.2 A driver controlled cruise control system:
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Controller

Foot pedal
Desired
e
Carand e
Actual
Driver
espeed - Engine
e
auto
espeed
Measurement



Speedometer
Visual indication of speed
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E1.3 e e Although the principle of conservation of momentum explains much of
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the process of fly-casting, there does not exist a comprehensive scientific
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explanation of how a fly-fisher uses the small backward and forward mo- tion
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of the fly rod to cast an almost weightless fly lure long distances (the
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1

, 2 CHAPTER 1 e e e Introduction to Control Systems e e e




current world-record is 236 ft). The fly lure is attached to a short invisible
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leader about 15-ft long, which is in turn attached to a longer and thicker
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Dacron line. The objective is cast the fly lure to a distant spot with dead- eye
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accuracy so that the thicker part of the line touches the water first and then
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the fly gently settles on the water just as an insect might.
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Wind
Controller


Mind and e
Actual
of
e - body of the
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e e cast e positio
n e of
fly fly-fisher
e
ethe efly




Measurement


e of
Visual eindication e
e ofethe eposition

eof e the efly




E1.4 An autofocus camera control system:
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One-way trip time for the beam
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Conversionefactor
1
e
e (speed e of e light e or

sound)


Emitter/ Distance eto esubject




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Lens