100
Solutions Manual 3
6th3 Edition
Feedback Control of Dynamic
3 3 3 3
Systems .
.
Gene3 F.3 Franklin
.
J.3 David3 Powell
.
Abbas3 Emami-Naeini
.
.
.
.
Assisted 3by:
H.K.3 Aghajan
H.3 Al-Rahmani
P. 3Coulot
P.3 Dankoski
S.3 Everett
R.3 Fuller
T.3 Iwata
V.3 Jones
F.3 Safai
L.3Kobayash
i3H-T.3Lee
E.3 Thuriyasena
M.3 Matsuoka
,Chapter 1 3
An Overview and Brief Histo
3 3 3 3
ry of Feedback Control
3 3 3
1.1 Problems 3 and3Solutions
1. Draw3a3component3block3diagram3for3each3of3the3following3feedback3cont
rol3systems.
(a) The3manual3steering3system3of3an3automobile
(b) Drebbel's3incubator
(c) The3water3level3controlled 3by3a3float3and3valve
(d) Watt's3steam3engine3with3fly-ball3governor
In3each3case,3indicate3the3location3of3the3elements3listed 3below3a
nd3give3the3units3associated 3with3each3signal.
● the3 process
● the3process3output3signal
● the3 sensor
● the3 actuator
● the3 actuator3 output3signal
● The3reference3signal
Notice3that3in3a3number3of3cases3the3same3physical3device3may3p
er-3form3more3than3one3of3these3functions.
Solution:
(a) A3manual3steering3system3for3an3automobile:
101
,102
CHAPTER31.3 AN3OVERVIEW 3AND 3BRIEF3HISTORY3OF3FEEDBACK 3CONTROL
(b) Drebbel's3incubator:
(c) Water3level3regulator:
(d) Fly-ball3 governor:
, 1.1.3 PROBLEMS3 AND3 SOLUTION 103
S
(e) Automatic3steering3of3a3ship:
(f) A3public3address3system:
2. Identify3the3physical3principles3and3describe3the3operation3of3the3therm
o-3stat3in3your3home3or3office.
Solution:
A3thermostat3is3a3device3for3maintaining3a3temperature3constant3at3a3
desired 3value.3 It3is3equipped 3with3a3temperature3sensor3which3detects
3deviation3from3the3desired 3value,3determines 3whether3the3temperatur
e3setting3is3exceeded 3or3not,3 and3transmits3the3information3to3a3furna
ce3 or3 air3 conditioner3 so3 that3 the3 termperature3 in3 the3 room3 is3 brough
t3 back
Solutions Manual 3
6th3 Edition
Feedback Control of Dynamic
3 3 3 3
Systems .
.
Gene3 F.3 Franklin
.
J.3 David3 Powell
.
Abbas3 Emami-Naeini
.
.
.
.
Assisted 3by:
H.K.3 Aghajan
H.3 Al-Rahmani
P. 3Coulot
P.3 Dankoski
S.3 Everett
R.3 Fuller
T.3 Iwata
V.3 Jones
F.3 Safai
L.3Kobayash
i3H-T.3Lee
E.3 Thuriyasena
M.3 Matsuoka
,Chapter 1 3
An Overview and Brief Histo
3 3 3 3
ry of Feedback Control
3 3 3
1.1 Problems 3 and3Solutions
1. Draw3a3component3block3diagram3for3each3of3the3following3feedback3cont
rol3systems.
(a) The3manual3steering3system3of3an3automobile
(b) Drebbel's3incubator
(c) The3water3level3controlled 3by3a3float3and3valve
(d) Watt's3steam3engine3with3fly-ball3governor
In3each3case,3indicate3the3location3of3the3elements3listed 3below3a
nd3give3the3units3associated 3with3each3signal.
● the3 process
● the3process3output3signal
● the3 sensor
● the3 actuator
● the3 actuator3 output3signal
● The3reference3signal
Notice3that3in3a3number3of3cases3the3same3physical3device3may3p
er-3form3more3than3one3of3these3functions.
Solution:
(a) A3manual3steering3system3for3an3automobile:
101
,102
CHAPTER31.3 AN3OVERVIEW 3AND 3BRIEF3HISTORY3OF3FEEDBACK 3CONTROL
(b) Drebbel's3incubator:
(c) Water3level3regulator:
(d) Fly-ball3 governor:
, 1.1.3 PROBLEMS3 AND3 SOLUTION 103
S
(e) Automatic3steering3of3a3ship:
(f) A3public3address3system:
2. Identify3the3physical3principles3and3describe3the3operation3of3the3therm
o-3stat3in3your3home3or3office.
Solution:
A3thermostat3is3a3device3for3maintaining3a3temperature3constant3at3a3
desired 3value.3 It3is3equipped 3with3a3temperature3sensor3which3detects
3deviation3from3the3desired 3value,3determines 3whether3the3temperatur
e3setting3is3exceeded 3or3not,3 and3transmits3the3information3to3a3furna
ce3 or3 air3 conditioner3 so3 that3 the3 termperature3 in3 the3 room3 is3 brough
t3 back
