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Abstract
The paper discusses the problem of closed-loop ergatic “pilot - airplane” system monitoring for the purposes of flight safety. The new approach is proposed, based on the confidential ellipsoidal model, which parameters are estimated by flight data processing. The ellipsoidal model of ergatic “pilot - airplane” system enables to detect system emergency operation mode and to identify the source of such emergency mode. The operability of the proposed approach is confirmed by the experimental data processing.
Highlights
Analysis of aviation accidents shows, that they are mainly caused by the following factors: – on-board failures of the airplane and its equipment (22% of aviation accidents); – pilot’s misunderstanding of the current flight situation and resulting pilot’s inadequate response (20% of aviation accidents); – pilot’s control errors, that is the manipulating the control levers in unfit mode ( 18% aviation accidents)
It is clear that these factors are crucial from the viewpoint of flight safety, so the mathematic model of this ergatic system may be of a great value
This ellipsoidal model of ergatic system is a intellectual kernel of the suggested approach
Summary
Analysis of aviation accidents shows, that they are mainly caused by the following factors: – on-board failures of the airplane and its equipment (22% of aviation accidents); – pilot’s misunderstanding of the current flight situation and resulting pilot’s inadequate response (20% of aviation accidents); – pilot’s control errors, that is the manipulating the control levers in unfit mode ( 18% aviation accidents). The paper proposes a new model for onitoring the state of the closed-loop ergatic system “pilot-airplane” based on the concept of multidimensional confidence ellipsoids. The confidential ellipsoid EE(t) being formed , it is possible for every instant t of the flight path to estimate the process of piloting from the viewpoint of the flight safety. For this purpose let’s assume that measurement errors of vector Z(t) components are negligible and may be used instead of this vector Z(t). If for an an arbitrary time instant t flight data meets the condition (2), the ergatic “pilot-airplane” system is operating normally, i.e. any threats to flight safety are absent with guaranteeing probabilityE. Considering block structure of the vector Z(t), the correlation matrix KZ(t) may be presented in blocks: KZ
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