100
Solutions Manual 79
6th7 9 Edition
Feedback Control of Dynamic
79 79 79
Systems
79
.
.
Gene7 9 F.7 9 Franklin
.
J.7 9 David7 9 Powell
.
Abbas79Emami-Naeini
.
.
.
.
Assisted79by:
H.K.7 9 Aghajan
H.79 Al-Rahmani
P.79Coulot
P.79 Dankoski
S.7 9 Everett
R.7 9 Fuller
T.7 9 Iwata
V.7 9 Jones
F.7 9 Safai
L.79Kobayas
hi79H-
T.79Lee
E.7 9 Thuriyasena
M.7 9 Matsuoka
,Chapter 1 79
An Overview and Brief His
79 79 79 79
tory of Feedback Control
79 79 79
1.1 Problems79and79Solutions
1. Draw79a79component79block79diagram79for79each79of79the79following79feedba
ck79control79systems.
(a) The79manual79steering79system79of79an79automobile
(b) Drebbel's79incubator
(c) The79water79level79controlled79by79a79float79and79valve
(d) Watt's79steam79engine79with79fly-ball79governor
In79each79case,79indicate79the79location79of79the79elements79listed79
below79and79give79the79units79associated79with79each79signal.
● the79 process
● the79process79output79signal
● the79 sensor
● the79 actuator
● the79 actuator79 output79 signal
● The79reference79signal
Notice79that79in79a79number79of79cases79the79same79physical79device
79may79per-79form79more79than79one79of79these79functions.
Solution:
(a) A79manual79steering79system79for79an79automobile:
101
,(b) Drebbel's79incubator:
(c) Water79level79regulator:
(d) Fly-ball79 governor:
, 103
(e) Automatic79steering79of79a79ship:
(f) A79public79address79system:
2. Identify79the79physical79principles79and79describe79the79operation79of79the
79thermo-79stat79in79your79home79or79office.
Solution:
A79thermostat79is79a79device79for79maintaining79a79temperature79consta
nt79at79a79desired79value.7 9 It79is79equipped79with79a79temperature79sens
or79which79detects79deviation79from79the79desired79value,79determines79
whether79the79temperature79setting79is79exceeded79or79not,7 9 and79trans
mits79the79information79to79a79furnace7 9 or79 air79 conditioner79 so79 that7
9 the79 termperature79 in79 the79 room79 is79 brought79 back
Solutions Manual 79
6th7 9 Edition
Feedback Control of Dynamic
79 79 79
Systems
79
.
.
Gene7 9 F.7 9 Franklin
.
J.7 9 David7 9 Powell
.
Abbas79Emami-Naeini
.
.
.
.
Assisted79by:
H.K.7 9 Aghajan
H.79 Al-Rahmani
P.79Coulot
P.79 Dankoski
S.7 9 Everett
R.7 9 Fuller
T.7 9 Iwata
V.7 9 Jones
F.7 9 Safai
L.79Kobayas
hi79H-
T.79Lee
E.7 9 Thuriyasena
M.7 9 Matsuoka
,Chapter 1 79
An Overview and Brief His
79 79 79 79
tory of Feedback Control
79 79 79
1.1 Problems79and79Solutions
1. Draw79a79component79block79diagram79for79each79of79the79following79feedba
ck79control79systems.
(a) The79manual79steering79system79of79an79automobile
(b) Drebbel's79incubator
(c) The79water79level79controlled79by79a79float79and79valve
(d) Watt's79steam79engine79with79fly-ball79governor
In79each79case,79indicate79the79location79of79the79elements79listed79
below79and79give79the79units79associated79with79each79signal.
● the79 process
● the79process79output79signal
● the79 sensor
● the79 actuator
● the79 actuator79 output79 signal
● The79reference79signal
Notice79that79in79a79number79of79cases79the79same79physical79device
79may79per-79form79more79than79one79of79these79functions.
Solution:
(a) A79manual79steering79system79for79an79automobile:
101
,(b) Drebbel's79incubator:
(c) Water79level79regulator:
(d) Fly-ball79 governor:
, 103
(e) Automatic79steering79of79a79ship:
(f) A79public79address79system:
2. Identify79the79physical79principles79and79describe79the79operation79of79the
79thermo-79stat79in79your79home79or79office.
Solution:
A79thermostat79is79a79device79for79maintaining79a79temperature79consta
nt79at79a79desired79value.7 9 It79is79equipped79with79a79temperature79sens
or79which79detects79deviation79from79the79desired79value,79determines79
whether79the79temperature79setting79is79exceeded79or79not,7 9 and79trans
mits79the79information79to79a79furnace7 9 or79 air79 conditioner79 so79 that7
9 the79 termperature79 in79 the79 room79 is79 brought79 back
