ΠšΠ°Ρ‚Π΅Π³ΠΎΡ€ΠΈΡ: 2.9. Transport systems

Application of one-factor and three-factor analysis of variance in the study of technological processes

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DOI 10.51955/2312-1327_2024_4_34

Nikolai S. Khersonsky

Ludmila G. Bolshedvorskaya

Abstract. The article provides an overview of the applicability of statistical methods for assessing the results of production processes in various industries. The authors emphasize the effectiveness of the system approach implemented in the methods of analysis of variance, which contributes to technology improvement and allows the influence of each factor and their interaction to be studied in detail. In addition, the results of the analysis of variance can be integrated into the quality management system, which makes it possible to continuously monitor and adjust production processes, and prevent deviations in the output parameters of various parts. The paper provides an example of applying the analysis of variance in the study of technological processes of pressing the components from various materials in designing, manufacturing and controlling the quality of defense and industrial products.

Keywords: analysis of variance, statistical methods, experiment, technological process.

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Mathematical model for validating ADS-B messages on the airfield surface

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DOIΒ 10.51955/2312-1327_2024_4_93

Alexander P. Plyasovskih

Artem V. Koposov

Alexandra A. KatrichevaΒ 

Abstract. The article proposes a mathematical model for validation of messages of automatic dependent surveillance of broadcasting type (ADS-B). The relevance of the study is due to the growing requirements for the security and reliability of information systems, as well as the need to ensure the integrity and reliability of transmitted information in the context of modern threats. The paper presents the main components of the model, including information sources, data transmission channels and error detection mechanisms. The proposed model describes the processes occurring in the ADS-B systems, taking into account artificial and natural interference that affects the reliability of surveillance information, allows you to predict the actions of intruders trying to violate the integrity of the ADS-B systems, and to predict the operation of the ADS-B system under interference, provides the possibility of developing effective methods to validate ADS-B messages in the terminal area. Thus, the presented mathematical model for validating ADS-B messages serves as an important step towards improving the reliability of information systems and protecting critical information from unauthorized access and distortion.

Keywords: ADS-B, time difference, model, validation.

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Methodology for automatic assessment of the convergencing aircraft hazard in the event of separation intervals violation

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DOI 10.51955/2312-1327_2024_4_18

Alexander P. Plyasovskih

Artem Yu. Vinnikov

Vladimir Yu. Topilin

Abstract. The article proposes a method for automated high-precision assessment of the danger of approaching aircraft in case of violation of established separation standards on a continuous 100-point scale. The technique is a step-by-step search for the maximum hazard of approaching aircraft from the moment of the beginning of the violation of separation intervals to the end of the conflict situation. The main criterion for assessment is the linear functional dependence of the values of the minimum distances between aircraft, weighted in the established separation standards. A 100-point assessment will allow for the comparison and comparison of potential hazard between different facts of violations of separation standards, the severity of the threats and risks to flight safety contained therein.

Using “perceived hazard” as a reference points allows assessing the level of flight safety even in the absence of violations of separation intervals for the selected reporting period. The analysis of the estimates obtained using the methodology will help to take timely preventive measures to eliminate potential threats even before the occurrence of real aviation events.

It is advisable to use this methodology in solving the tasks of automating the assessment of practical skills of air traffic control personnel and creating an automatic flight safety management system.

Keywords: normalized coordinate system, normalized distance, violation of separation intervals, hazard of convergence, methodology for assessing the hazard of convergence.

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Spatial orientation and flight image: modern approaches to pilot training

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DOI 10.51955/2312-1327_2024_4_78

Artem A. Fedorov

Abstract. The article examines the key aspects that ensure effective piloting, such as spatial orientation and flight image. Modern methods of pilot training including technological solutions and cognitive training are described. Emphasis is placed on the importance of an integrated approach to skill development to enhance flight safety and efficiency. The practical significance of the work lies in the need to constantly update and adapt pilot training programs in light of technological progress and changes in the aviation industry, which will contribute to the creation of a safer and more reliable air traffic control system of the future.

Keywords: spatial orientation, flight image, sensory systems, situational awareness, Euler angles, quaternions, psychophysiology, virtual reality, cognitive skills, flight simulators, stress management.

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Development of alternative ways to maintain the serviceability of PT6A engines based on the airline data

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DOI 10.51955/2312-1327_2024_4_44

Dmitry E. Strokov

Evgenia A. Achkasova

Oksana G. BoykoΒ 

Abstract. The authors constructed a mathematical model for changing the parameters of an aircraft engine for use in the ECTM (Engine Condition Trend Monitoring) system, which will allow for the maintenance of foreign-made aircraft under sanction restrictions based on the airline data.

The mathematical model was constructed with the regression analysis method on the basis of statistical data of PT6A-114A engines technical operation over a five-year operation period. The proposed solution allows the values of the basic parameters of the PT6A-114A aircraft engine to be obtained, the operator having the opportunity to independently analyze the trends of changes in the engine condition without the ESTM system. The main advantage of the obtained research results is independence of the aircraft operator on foreign engine parameter assessment services. The airline can assess the engine parameters independently. One of the next stages of further implementation of the ECTM system within the airline is the development of software that will automate the process of reading the aircraft engine parameters, conduct their analysis and correlate to the engine operation and maintenance documentation and issue a plan of corrective actions on the engine and its components.

Keywords: aircraft engine, parameters, regression analysis, basic values, maintenance.

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Linear density theorem for circulation in a vortex tube

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DOI 10.51955/2312-1327_2024_4_67

Nikolay V. Danilenko

Anton G. Kirenchev

Abstract. The article describes vortex formation in the atmospheric medium and analyzes the research on this topic. The main contradictions and problems in the study of vortex formation are revealed. The working process of transforming the initial potential flow of working body of the medium under study into vortex flow with the description of the main factors influencing this process is considered. The contradictions in the process of vortex tube formation are revealed, for which a new object of research was chosen – specific linear density of vortex circulation of gas (liquid) natural and anthropogenic media. The state and problems of the specific linear density of vortex circulation of the investigated vortex formation are assessed. The definition of specific linear density of circulation on the basis of its working process is presented. The correlation between the linear circulation density and the tangential velocity of the medium on the outer surface of the vortex tube is established. The definition of the theorem on the linear circulation density of a vortex tube is given. The proof of the theorem and the mathematical relationship of the linear density of medium vortex tube circulation and the tangential velocity on its outer surface are given. Corollaries of the theorem and their applications are presented.

Keywords: vortex formation, generation factors, working process, definition, theorem, classification, linear density of circulation, vortex tube, aircraft engine air intake vortices, tornadoes.

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Analysis of risk assessment methods in the field of process safety at an airline

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DOI 10.51955/2312-1327_2024_3_45

Polina I. Benyaminova

Oksana G. Feoktistova

Abstract. The article discusses various methods of risk assessment in the field of of process safety at an airline. The purpose of the study is to determine the most appropriate risk assessment method to increase the level of safety at work and reduce the probability of dangerous situations. When analyzing the methods for detecting and identifying hazardous events and negative situations, we have highlighted the most effective ones. Based on this, the authors have created diagrams such as the “tree of incidents” and the “tree of events” has been developed for the event: industrial injury. The article considers the matrix method as one of the most common methods in the practice of professional risk assessment.

Key words: airline, risk, occupational risk, labour precaution, accident tree, event tree, noise, dangerous occupational factor, harmful factors.

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Analysis of the principles of processing navigation information and constructing the working zone of a multi-position surveillance system

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DOI 10.51955/2312-1327_2024_3_76

Dmitry Y. Urbansky

Abstract. The use of modern surveillance equipment in accordance with ICAO recommendations is aimed at improving the efficiency of air transportation, increasing the capacity of airspace and airfields, and improving the safety of flights and ground operations. The introduction in the Russian Federation of a multi-position surveillance system (MPSS) based on automatic dependent surveillance of the broadcast type (ADS-B) is intended to facilitate the implementation of state and regional aviation development programs in terms of creating conditions for improving flight safety, availability and quality of air navigation services for airspace users. Therefore, the analysis of the principles of constructing a working area and processing navigation information in a multi-position surveillance system for improving the accuracy of aircraft position-fixing is an urgent research task. An approach to improving the efficiency of the MPSS operation when processing information in conditions of noise and interference has been considered. Analysis of the results of modeling the proposed algorithm based on the discrete Kalman filter shows high accuracy of estimating the planned coordinates of an aircraft. Specialized software has been developed to automate the process of calculating and constructing working areas of a multi-position surveillance system.

Keywords: multi-position surveillance system, multilateration technology, automatic dependent surveillance, Kalman filter, working area, location, least squares method.

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Application of methods of theory of importance of criteria for determination of activities of pilots in control of aircraft with different level of automation

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DOIΒ 10.51955/2312-1327_2024_3_103

Gennadiy V. Kovalenko

Ivan S. Muravyev

Ilya A. Yadrov

Abstract. The formalization of the activities of pilots in the controlling of the latest generation aircraft (AC) is experiencing difficulties due to significant changes in the structure of human activity – the operator. For the most complete analysis of the procedure for controlling the activities of pilots when using various levels of automation, it turns out to be not enough to use only the mathematical apparatus of probability theory and decision-making methods in vague conditions. The article presents the result of applying the methods of the theory of the importance of criteria in order to determine the most rational choice of crew members’ activity at various stages of flight and piloting modes of the latest generation aircraft.

Keywords: importance of criteria, evaluation of flight parameters, activity control, degree of aircraft automation.

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Analysis of the methodological basis of aircraft flight path control

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DOI 10.51955/2312-1327_2024_3_59

Nikolay P. Malisov

Abstract. In the International Civil Aviation Organization, an important area is the development of new approaches to constructing and maintaining effective aircraft flight paths. Developing a flight control system capable of not only stabilizing the position, but also accurately tracking the trajectory for an aircraft is a rather complex task. In this paper, an algorithm for generating trajectory tracking control is proposed based on the methods of optimal control theory (OCT) using optimal filtering theory (OFT) approaches to estimate the trajectory motion parameters. The formulation of an autonomous optimal control problem is considered. In the paper, the flight route maintenance quality indicator is formulated as minimizing the deviation of the actual flight path from the specified one. The expediency of implementing the proposed approach is confirmed by the methods of simulation statistical modeling. To test the validity of the proposed approach, a simulation modeling of a typical flight path tracking under expected operating conditions was performed. Analysis of the results obtained during the simulation modeling shows that the deviation of the controlled flight path parameters from the specified values does not exceed 5Β m. The results demonstrate the efficiency of the algorithm for tracking a specified flight path and its stability to external disturbances.

Keywords: aircraft, flight path, Kalman filter, optimal control, optimal filtering, global navigation satellite system, trajectory control system.

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