Report of the Second Piloted Aircraft Flight Control System - Acgsc.org

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Of especid concern is that portion of the total aelPdyrremic nent wbich is related to ,9 and its derivatives alane. Designating this narmt oaapoor-t by yF , The above equation, obriowly, does not include the dynamical chsmcteristicr of the hydraulic eystsm, but, rather, represeats a ourface inertla tied to a -ring, as illustrated belaw, F1 Since MF s - 4
tp = 4 1' ( 4 include. aU flaxibillty I- the a! hydraulic cylinder to the effective mass cmter of the surface) A' = surface horn radius d = surface span then in meal terms, equation (51) becomes: Caparison of equation (52) with (49) clearly sbua that the camplete apresrion for the hgdraulic-flutter sfst- is far more oarpl~x than the rimple situation shown in Pig, l4. The above ca~~ponant of the total aerodyneaic =ant nlatsd to and its derivatives ahe now replaces the orfginal incamplets tern in equation (50); thenfore the differential equation of motion ir more precisely ~3q)ressed, p diagraa~at$c reprermtath of the corrdcted capansnt ir ram . in Fig. 16.
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-3-a'uo#Su!qs~~ MVN 3Hl 4 0 lN3WlIJ
Page 3 and 4:
CONTENTS 1, Centering Charauteristi
Page 5 and 6:
CENTERING CHARACTERISTICS OF POWER
Page 8:
Since pilqt effort and s*face force
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The centering characteristics excep
Page 18:
-mtla= etlq 30 pwdo o q m ~APA opl
Page 21 and 22:
HELICOPTER POWERED CONTROL SYSTEM P
Page 23 and 24:
Returning to the discussion of the
Page 25 and 26:
loaded by-pass valve closes, and fr
Page 27 and 28: FUGET RESEARCH ON FORCE WHEEL CONTR
Page 29 and 30: precisely. The fir at demonstration
Page 31 and 32: to hare thq coakpit controle comman
Page 33 and 34: conrtsnt speed). While this ryrtem
Page 35 and 36: I I SURFACE I AIRCRAFT DYNAMICS LOA
Page 37 and 38: AUTOMATIC PUT DYNAMICS a LOAD DISTU
Page 39 and 40: FORCE ME- SERVO. \ - = AMPLIFIER =
Page 41 and 42: The configuration described above r
Page 43: AN ANALYSIS OF FULLY-POWERED AIRCRA
Page 46 and 47: "W@J@tI pendm ao poqtmeard euofenfo
Page 48 and 49: Ooeo red em;Co* ey tg areqm - a d m
Page 50 and 51: Variation of Valve Flcnr with Press
Page 52 and 53: p - instantaneons density (mare per
Page 54 and 55: where %, , %+ , fi , and A r' are p
Page 57 and 58: The error equation (l), with XI * i
Page 61 and 62: C C U P m ZERO - (Bulk Modulus infi
Page 63 and 64: Canparing equation (32) vith eqatio
Page 66 and 67: EFFECT OF ADDRIG A SPEUNC IllbD AT
Page 70: The outtmt 4 is then -tion (a) may
Page 74 and 75: 71 It is of interest to anmine the
Page 77: It w ill now be shrnm that the quad
Page 83 and 84: Frequancy Response of Another prore
Page 85 and 86: or, ii the pinton s p w A, in f ~ t
Page 88 and 89: $ - BZ~W~ pfY88WC)* - presstam on e
Page 90 and 91: INTRODUCTION PARAMETERS FOR THE DES
Page 92 and 93: to the piston. When the spool membe
Page 94 and 95: Figure 2 shows an oscillographlc re
Page 96: lication of equations. - The method
Page 99 and 100: The solution to equation (11) , is
Page 101 and 102: I RATIO OF PEAK TRANSIENT CYLINDER
Page 103 and 104: Equations (21) and (22) are written
Page 105 and 106: variation of this rise time with T
Page 107 and 108: CHART ILLUSTRATING EFFECT OF INERTI
Page 109 and 110: pa lo=$ $8 uoy$eyQd moy pamwam $ndq
Page 111 and 112: IMPROVEMENT OF POWER SURFACE CONTRO
Page 113 and 114: FIG. 2 INSTALLATION - POWER OPERATE
Page 115 and 116: AMPLITUDE RATIO- DB I 0 I 0 I cn 0
Page 117 and 118: The overall reaotien rpring rate ir
Page 119 and 120: FIG.5 - SCHEMATIC -- BASIC TYPE POW
Page 122 and 123: With theae substitutions into equat
Page 124: Although only one type of power oon
Page 127 and 128: 0 AMPLITUDE RATIO- D8 I I I I rU rU
Page 129:
In the range ai airplane natural fr
Page 132 and 133:
Figure 1. anticipation of the targe
Page 134 and 135:
The constant k helped to improve th
Page 137 and 138:
to determine if there was behaviora
Page 139 and 140:
SYNTHESIS OF FLIGHT CONTROL SYSTEMS
Page 145 and 146:
The hydraulic system itself is a hi
Page 147:
P :: 7 OT- a- ' 06- 09- . I
Page 150 and 151:
Zeros introduced by resonance of th
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explicit set of specifications-or a
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her@ is to lnake the push-rod as st
Page 160:
particular problem. We then choose
Page 164 and 165:
changing flight corditions. Idea-,
Page 166 and 167:
A,. Area of bydraullc jack giston.
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