Integrated and Modular Systems for Commercial ... - Nonstop Systems

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Integration of CatIII Autoflight Computers A300 N1 Limit Auto Throttle Test Computer Pitch Trim Yaw Damper Logic Computer Longitudinal Computer Lateral Computer x1 x1 x2 x2 x2 x2 x2 x2 A310 A300-600 TCC FMC FAC FCC ref.: ”Is new technology a friend or foe?”, editorial in Aerospace World, April 1992, pp. 33-35 x1 x2 x2 x2 Airbus AFCS example: 1 analog and 3 digital generations A320 FAC FMGC x2 A330/340 x2 FMGEC x2 14 7 4 2 100 ©1995-1997 F.M.G. Dörenberg
Integrated Flight & Thrust Control Systems Examples: • Modular Flight Control & Guidance Computer (EFCS by BGT/Germany) • Propulsion Controlled Aircraft (PCA) (MDC/NASA, Boeing) • Towards multi-axis thrust vectoring (civil) (NASA-LaRC, Calcor Aero Systems, Aeronautical Concept of Exhaust Ltd.) ref.: E.T. Raymond, C.C. Chenoweth: “Aircraft flight control actuation system design”, SAE, ‘93, 270 pp., ISBN 1-56091-376-2 ref.: Hughes, D., Dornheim, M.A.: “United DC-10 Crashes in Sioux City, Iowa,” Aviation Week & Space Technology, July 24, 1989, pp. 96-97 ref.: Dornheim, M.A.: "Throttles land "disabled" jet," Aviation Week & Space Technology, September 4, 1995, pp. 26-27 ref.: Devlin, B.T., Girts, R.D.: "MD-11 Automatic Flight System," Proc. 11th DASC, Oct. 1992, pp. 174-177 & IEEE AES Systems Magazine, March 1993, pp. 53-56 ref.: Kolano, E.: “Fly by fire”, Flight International, 20 Dec. ‘95, pp. 26-29 ref.: Norris, G.: “Boeing may use propulsion control on 747-500/600X”, Flight Int’l, 2-8 Oct. 1996, p. 4 ref.: “Engine nozzle design - a variable feast?”, editorial in Aircraft Technology Engineering & Maintenance, Oct./Nov. 1995, pp. 10-11 101 ©1995-1997 F.M.G. Dörenberg
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Integrated and Modular Systems for
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Integrated and Modular Systems for
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Integrated and Modular Avionics •
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Engine thrust Structure & Gear Comp
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Why change avionics? • Airline/Op
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Operators seek revenue enhancement
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Why change avionics? (cont’d) •
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Why change avionics? (cont’d) •
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Avionics business • high-tech but
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Changing airtransport environment 1
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5000 Pax-km (billions, log-scale) 1
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Billions of 1995 US $ 80 60 40 20 9
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24% 23% 23% 30% 737-300 ($1834/hr)
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Big $ numbers life-time maintenance
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Save now and save later • increas
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Average schedule deviation costs de
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Integrated Modular Avionics Archite
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Fault Avoidance - prevent (by const
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Fault Tolerance Taxonomy Fault Tole
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Redundancy • Attributes: � form
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Basic ways to increase system relia
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1 System Reliability λunit = 5x10-
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Note: log-log scale F (t) 2-out-of-
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System architecture and design deci
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1.0 Rconfig(t) 0.9 0.8 dual Redunda
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Page 73 and 74: Integration & Modularization • LR
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Page 83 and 84: German “WW II” radios • Modul
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Page 113 and 114: FCGC redundancy management - exampl
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1 Integrated and Modular Avionics
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3 FANS: Future Air Navigation Syste
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5 Component and System Performance
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7 Component and System Performance
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9 Future ........ (cont’d) • im
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11 150 k ↑ Total airplane signal
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13 100 MB 80 MB 20 MB 10 MB 747-200
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15 System Complexity and Size Typic
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17 Given: Extrapolation ...... •
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19 Enabling technologies - componen
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Enabling technologies - drivers for
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23 Enabling technologies - design /
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25 236-pin connector Example: PC mo
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27 Example: integrated X-band power
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29 Cold-Cathode Field Emission Disp
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31 Enabling technologies - componen
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33 Resource Partitioning - part of
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35 Enabling technologies - communic
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37 High Medium Low Enabling technol
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39 Enabling technologies � s/w
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1 BOOKS BIBLIOGRAPHY F.J. Redmill (
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3 M.L. Shooman: "A study of occurre
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