A Mathematical Model of a Single Main Rotor Helicopter for ... - Read
A Mathematical Model of a Single Main Rotor Helicopter for ... - Read
A Mathematical Model of a Single Main Rotor Helicopter for ... - Read
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TABLE J-1.- CONFIGURATION DESCRIPTION REQUIREMENTS<br />
Name<br />
<strong>Main</strong> rotor (MR) group<br />
MR rotor radius<br />
MR chord<br />
MR rotational speed<br />
Number <strong>of</strong> blades<br />
MR Lock number<br />
MR hinge <strong>of</strong>fset<br />
MR flapping spring constant<br />
MR pitch-flap coupling tangent <strong>of</strong><br />
63<br />
MR blade twist<br />
MR precone angle (required <strong>for</strong><br />
teetering rotor)<br />
MR solidity<br />
MR lift curve slope<br />
MR maximum thrust<br />
MR longitudinal shaft tilt (positive<br />
<strong>for</strong>ward)<br />
MR hub stationline<br />
MR hub waterline<br />
Tail rotor (TR) group<br />
TR radius<br />
TR rotational speed<br />
TR Lock number<br />
TR solidity<br />
TR pitch-flap coupling tangent <strong>of</strong><br />
63<br />
TR precone<br />
TR blade twist<br />
TR lift curve slope<br />
TR hub stationline<br />
TR hub waterline<br />
Algebraic CmPuter<br />
symbol mnemonic<br />
RMR<br />
QMR<br />
nb<br />
YMR<br />
E:<br />
KB<br />
Kl<br />
‘~MR<br />
a<br />
OMR<br />
UMR<br />
aMR<br />
‘Tmax<br />
iS<br />
STAH<br />
WLH<br />
RTR<br />
QTR<br />
YTR<br />
OTR<br />
K 1 ~ ~<br />
a<br />
OTR<br />
‘~TR<br />
a~~<br />
STAm<br />
WLTR<br />
42<br />
ROTOR<br />
CHORD<br />
OMEGA<br />
BLADES<br />
GAMMA<br />
EPSLN<br />
AKBETA<br />
AKONE<br />
ft<br />
ft<br />
Units<br />
rad/sec<br />
N-D<br />
N-D<br />
percent/100<br />
lb-f t/rad<br />
N-D<br />
THETT rad<br />
AOP rad<br />
SIGMA N-D<br />
ASLOPE rad’’<br />
CTM N-D<br />
CIS rad<br />
S TAH in.<br />
WLH in.<br />
RTR ft<br />
OMTR rad 1 sec<br />
GAMATR N-D<br />
STR N-D<br />
FKITR N-D<br />
AOTR rad<br />
THETR rad<br />
ATR rad’’<br />
STATR in.<br />
WLTR in.<br />
Example<br />
value<br />
22<br />
2.25<br />
32.88<br />
2 m<br />
5.216<br />
0<br />
0<br />
0<br />
-0.17453<br />
0.048<br />
0.0651<br />
6.28<br />
0.165<br />
0<br />
200<br />
152.76<br />
4.25<br />
168.44<br />
2.2337<br />
0.105<br />
0.5773<br />
0.02618<br />
0<br />
6.28<br />
520.7<br />
118.27<br />
-<br />
-9
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