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TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2015013712
pages 63-74

SELECTION METHOD OF MONITORING ALGORITHM THRESHOLDS FOR AIRLINER'S DIGITAL FLY-BY-WIRE CONTROL SYSTEM

Sergey Georgievich Bazhenov
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, Moscow region, 140180 Russia
Natalia Borisovna Lysenkova
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russia

ABSTRAKT

In this study, the operation of airliner digital redundant control system monitors is considered. The differences between monitored signals include asynchronous and stochastic parts. An approach to evaluate the probability of a monitoring system false alert is proposed. This approach makes it possible to select preliminary thresholds of monitors in order to satisfy the requirements for false alert probability defined in the FHA step. These probabilities are evaluated using the solution to the classical stochastic problem of level excess and flight simulator data. The resulting estimates are then corrected using the test flight results.


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