DOI 10.51955/2312-1327_2022_3_33

Nikolai S. Khersonsky

Ludmila G. Bolshedvorskaya

Abstract. The purpose of this work is to determine the practical applicability of statistical methods for assessing the compliance of manufactured products with the requirements of regulatory documentation and substantiating the feasibility of strategic planning of their production range. The advantage of this study is the development of a universal algorithm for the system of applying statistical methods to control nonconforming products and reduce the number of defects caused by known and little-known causes. The reliability of the conclusions obtained is due to the results of experiments carried out as part of the technological process, the objects of which were cylindrical parts made by pressing from materials of various physical and chemical composition used in various industries: aviation, mechanical engineering, shipbuilding, defense, etc. 

Key words: statistical methods, quality of components, nonconforming products, requirements of regulatory documentation, flight safety.

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DOI 10.51955/2312-1327_2022_3_6

Anatoly G. Guziy

Dmitry A. Shiryaev

Abstract. The article presents an original formalizable logical-probabilistic model for the development of hazardous situations in flight, the use of which contributes to the deepening of the analysis of flight safety as a state of the air transport system, covering all its components and interfaces directly or indirectly involved, the current state of which determines the risk of an accident in each specific flight.

It is shown that the effectiveness of measures to reduce the risk of aviation accidents (prevention of aviation events) within the framework of the civil aircraft flight safety management system is largely determined by the level of organization, depth and quality of the investigation of aviation events.

The developed model is essential for organizing the collection of data and recording the results of aviation events investigation, as well as hazard and risk factors that pose a threat to the safety of civil aircraft flights. It allows you to implement a systematic approach to the investigation of aviation accidents, aviation incidents and their prerequisites, providing coverage of all directly or indirectly involved components of the air transport system and interfaces, the current state of which determines the risk of an accident in each particular flight.

The collection and registration of the results of the investigation of aviation events, data on hazard and risk factors for flight safety within the framework of the state system for managing the safety of civil aircraft flights on the basis of the developed model contributes to the fulfillment of the requirements of international and national legislation by all participants in the flight safety management process.

Key words: flight safety, dangerous situations, hazard factors, accident prevention factors, probability of development of a dangerous flight situation, investigation of aviation events.

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DOI 10.51955/23121327_2022_3_20

Ivan Stanislavovich Murav’ev

Abstract. Modern automated aircraft is a system with high information value of its operation parameters. The motor skill of the pilot in the flight control modes using autopilot and auto-throttle remains untapped on such types of aircraft. This leads to a lack of information about the aircraft state in flight and increases the risk of an emergency. To solve this problem, the authors developed a new method that allows pilots to evaluate the functioning of complex control systems, based on the formation of an integrated skill in combining static and dynamic parameters from various sources of information located in the cockpit. This method is based on a mathematical model for assessing the effectiveness of the operator’s activities and allows developing a methodology for training pilots to assess the functioning of automated aircraft systems and the state of the aircraft itself in flight.

The method consists in the fact that when performing a flight in the semi-automatic control mode, the pilot must partially replace the autopilot with manual piloting. By executing the commands set on the flight mode control panel, the pilot is partially dependent on the operating conditions of the automatics involved in operation. The theoretical calculation shows that the flight should be divided into specific stages, and the parameters of the information sources presented to the pilot in flight should be divided into static and dynamic ones. When training, it is necessary to stepwise increase the information load on the pilot through the static parameters of the information sources, requiring the student to withstand them by influencing the dynamic parameters. It is also necessary to gradually change the level of automation of the piloting mode.

The results of the experiment made it possible to determine that the participants of the experimental group were 24% more effective in performing the flight when moving from a flight with a high degree of automation to a flight with a minimum degree of automation. The processing of the experiment results showed that using the proposed preparation method when evaluating the functioning of automated aircraft systems provided the statistically significant efficiency.

Keywords: information, efficiency, evaluation of functioning, piloting, method, experiment.

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