introduction to advanced engine control concepts - … · introduction to advanced engine control...
TRANSCRIPT
Introduction to Advanced Engine Control Concepts
Abstract With the increased emphasis on aircraft safety, enhanced performance and affordability, and the need to reduce the environmental impact of aircraft, there are many new challenges being faced by the designers of aircraft propulsion systems. The Controls and Dynamics Branch at NASA (National Aeronautics and Space Administration) Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with other organizations within GRC and across NASA, the U.S. aerospace industry, and academia to develop advanced controls and health management technologies that will help meet these challenges through the concept of Intelligent Propulsion Systems. The key enabling technologies for an Intelligent Propulsion System are the increased efficiencies of components through active control, advanced diagnostics and prognostics integrated with intelligent engine control to enhance operational reliability and component life, and distributed control with smart sensors and actuators in an adaptive fault tolerant architecture. This presentation describes the current activities of the Controls and Dynamics Branch in the areas of active component control and propulsion system intelligent control, and presents some recent analytical and experimental results in these areas.
https://ntrs.nasa.gov/search.jsp?R=20070010763 2018-07-08T10:47:16+00:00Z
15 F
eb 2
007
Fund
amen
tals
of A
ircra
ft En
gine
Con
trol D
esig
n -
Adv
ance
d C
ontro
l Con
cept
s ©
by D
r. S
. Gar
g 20
071
Fund
amen
tals
of A
ircra
ft En
gine
C
ontr
ol D
esig
n C
ours
e
Less
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dvan
ced
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trol C
once
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ectu
re:
Dr.S
anja
yG
arg
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SA
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nn R
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15 F
eb 2
007
Fund
amen
tals
of A
ircra
ft En
gine
Con
trol D
esig
n -A
dvan
ced
Con
trol C
once
pts
©by
Dr.
S. G
arg
2007
2Lsn
16: A
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cept
s
Less
on 1
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trod
uctio
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ngin
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once
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ontro
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eter
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ased
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om “P
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iagn
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s A
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974
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ise
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imiz
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ise
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ay B
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ot D
ayBi
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ith T
ypic
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ign
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imiz
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ontro
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ontro
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trol
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art L
ife E
xten
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ontr
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ngin
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imul
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emon
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ife M
odel
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TMF
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umul
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aryi
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mbi
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.615
.816
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4
Tim
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Orig
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edul
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ched
ule
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imiz
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ched
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ore
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ccel
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ondi
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3. O
ptim
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sig
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pone
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fe
savi
ngs
2. E
ngin
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ntro
l log
ic
can
be
optim
ized
to
min
imiz
e da
mag
e w
hile
m
aint
aini
ng
desi
red
engi
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perf
orm
ance
1. C
ompo
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cum
ulat
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func
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ambi
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oper
atin
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nditi
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•Mot
ivat
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st-to
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ottle
Rel
atio
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p C
hang
esw
ith D
egra
datio
n in
Eng
ines
Und
er F
an S
peed
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trol
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ttle
Fan
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edTh
rust
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rada
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indu
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shift
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ne P
erfo
rman
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eter
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gatio
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ontr
olEn
gine
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form
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n M
itiga
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trol
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trol
Arc
hite
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ontr
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rchi
tect
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ing
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ontro
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s th
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llow
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emen
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impl
ified
mod
el o
f the
eng
ine
whi
ch m
atch
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e “n
omin
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LA
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pons
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ust e
stim
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I con
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odify
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man
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bed
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pica
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igita
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ngin
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, fue
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ontro
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elP
iece
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rrect
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ased
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urat
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290
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21
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ff
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tabi
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ane
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ased
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xper
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100
050100
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Deflection (mils)
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ased
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Firs
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ased
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odel
Hig
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igh --
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pe M
emor
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lloy
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1015
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0.04
0.06
0.08
component deformation (in)
EG
T ov
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grou
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05
1015
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0.04
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time
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clearance (in)
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component deformation (in)
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0.04
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time
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clearance (in)
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ign
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ates
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n bl
eed
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ifica
nt re
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GT
and
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Rub
-free
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take
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Des
ign
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ase
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od S
eal
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ir
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Com
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Pow
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BUS
FAD
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Cur
rent
Eng
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Arc
hite
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urre
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tral
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Eng
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Cen
tral
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Eng
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Con
trol
Pros
:W
orks
, rel
iabl
e, w
ell-u
nder
stoo
d, e
xper
ienc
e,
com
fort
leve
lC
ons:
Exp
ensi
ve, i
nfle
xibl
e, in
the
futu
re w
ill b
ecom
e a
limiti
ng fa
ctor
in e
ngin
e pe
rform
ance
Wire
har
ness
wei
ght f
orce
s th
e FA
DE
C to
be
co-
loca
ted
on th
e en
gine
stru
ctur
eC
o-lo
cate
d FA
DE
C re
quire
s en
viro
nmen
tal
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g (th
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al, m
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ost.
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FAD
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Dis
trib
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BUS
Dis
trib
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Eng
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Con
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Dis
trib
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Eng
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Con
trol
Topo
logi
es:
Sta
r (po
int t
o po
int),
Rin
g or
bus
(dai
sy c
hain
)W
ired
or w
irele
ssPr
os:
Kno
wn
to w
ork
wel
l in
othe
r ind
ustri
es, m
uch
less
ex
pens
ive
(initi
al a
nd o
vera
ll co
st),
very
flex
ible
Con
s:C
omm
unic
atio
n un
know
ns a
nd d
eter
min
istic
be
havi
orO
vera
ll in
crea
sed
com
plex
ityR
equi
res
new
tech
nolo
gies
, i.e
., hi
gh te
mpe
ratu
re
elec
troni
cs
15 F
eb 2
007
Fund
amen
tals
of A
ircra
ft En
gine
Con
trol D
esig
n -A
dvan
ced
Con
trol C
once
pts
©by
Dr.
S. G
arg
2007
35Lsn
16: A
dvan
ced
Con
cept
s
Less
on 1
6 Su
mm
ary
Ther
e ar
e tre
men
dous
opp
ortu
nitie
s to
impr
ove
and
revo
lutio
nize
airc
raft
engi
ne p
erfo
rman
ce th
roug
h “p
rope
r”us
e of
adv
ance
d co
ntro
l tec
hniq
ues
Inte
llige
nt e
ngin
e co
ntro
l int
egra
ted
with
relia
ble
cond
ition
m
onito
ring
and
faul
t dia
gnos
tics
to e
xten
d on
-win
g op
erat
ing
life,
mai
ntai
n pe
rform
ance
with
agi
ng, s
afel
y ac
com
mod
ate
faul
ts w
hile
mai
ntai
ning
bes
t ach
ieva
ble
perfo
rman
ce e
tc.
Act
ive
cont
rol o
f eng
ine
com
pone
nts
to p
rovi
de th
e de
sire
d pe
rform
ance
cha
ract
eris
tics
thro
ugho
ut th
e fli
ght e
nvel
ope
and
enab
le lo
w e
mis
sion
hig
her p
erfo
rman
ce c
ompo
nent
sD
istri
bute
d en
gine
con
trol t
o re
duce
“con
trol s
yste
m”
wei
ght,
incr
ease
ope
ratio
nal r
elia
bilit
y an
d fle
xibi
lity
to
easi
ly in
corp
orat
e ne
w a
nd im
prov
ed c
apab
ilitie
s