Aerospace Technic and Technology
type: channel
description: Founded in: 1993 Field of science and issues in focus: Journal reflects the problems of the development of theory, design practices and technologies of aviation-space technology; control systems; electronic systems; computer systems and information technologies in the management of enterprises, programs and projects. The edition is included in the List of Scientific Professional Publications of Ukraine (Category "Б") by the Ministry of Education and Science of Ukraine № 975 of 11.07.2019. Specialties (ISCED-F 2013): 0413(073, 275) Management and administration 0541 (113) Mathematics 0612 (126) Database and network design and administration 0613 (121, 122) Software and applications development and analysis 0688(124) Inter-disciplinary programmes and qualifications involving Information and Communication Technologies 0713 (141, 142) Electricity and energy 0714 (173, 174, 175, 176) Electronics and automation 0715 (131, 142) Mechanics and metal trades 0716 (134, 142, 173) Motor vehicles, ships and aircraft 0788 (132) Inter-disciplinary programmes and qualifications involving engineering, manufacturing and construction 1041 (272) Air Transport ISSN: 1727-7337 (Print), 2663-2217 (Online) Media identifier No. R30-01717 (Decision dated 10/26/2023 No. 1146). Indexing: Vernadsky National Library of Ukraine; NRAT; Ulrichsweb Global Serials Directory; OCLC WorldCat; DOAJ; Index Copernicus; CiteFactor; AcademicKeys; Infobase Index; WorldCat; Google Scholar; Scillit; OUCI; Sherpa Issues and articles from 2017 have a DOI from CrossRef Founder: National Aerospace University «Kharkiv Aviation Institute» Periodicity: 6 issues per year (+ special issues). Editor-in-Chief: Yepifanov Sergiy Executive secretary: Leshchenko Oleksandr Editorial office address: 61070, Kharkiv, 17 V. Manka Str., chair 302. Tel.: +38(057)7884381, +38(067)1205222 E-mail: ntrio@khai.edu Archives of issues are HERE & HERE <img src="[binary]" alt="" width="21" height="31" />This journal provides immediate open ac…
publisher: Національний аерокосмічний університет "Харківський авіаційний інститут"
language: en-US
publication name: Aerospace Technic and Technology
issn: 1727-7337
copyright: Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-NonCommercial 4.0 International License that allows others to share (copy and redistribute the material in any medium or format), adapt, remix, transform, and build upon the material: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. NonCommercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
items: Research of methods and devices for weight determination and the aircraft’s center of gravity position
items: Conservative boundary-value problems of the theory of elasticity and integral representations of solutions
items: Theories of the Ranque effect: state-of-the-art critical review
items: Research for turbocompressors with general impeller for their application in gas turbine engines and power plants
items: Development of models and methods for constructing multidimensional didactic instruments
items: Application of thermal tomography method for detection of objects immersed in the ground
items: A method for improving the robustness of neural network for aerial image matching
items: Fuzzy multi-criteria evaluation of risk and safety in the point merge system
items: Hybrid software architecture with peripheral computing for adaptive VR driving training systems with biometric feedback

Research of methods and devices for weight determination and the aircraft’s center of gravity position
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">The <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">subject matter <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">of the article is the process of weighing and determining the aircraft’s center of gravity position. The <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-t…
creator: Grygorii Cherepashchuk
creator: Oleksii Potylchak
creator: Stanislav Klimov
rights: Copyright (c) 2025 Grygorii Cherepashchuk, Oleksii Potylchak, Stanislav Klimov
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 4
ending page: 11
doi: 10.32620/aktt.2025.5.01

Conservative boundary-value problems of the theory of elasticity and integral representations of solutions
type: item
description: <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">The subject of the research<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> is a mathematical model of the equilibrium of a solid body of satisfactory spatial shape under external load. The development of solid mechanics is largely related to practical goals — calculations of the strength of structural elements and machine parts, the violation of which is usually understood as reaching a state where the structural properties of the product change, rendering it unsuitable for use. Many years of research into the system of differential equations in partial derivatives of the laws of equilibrium in mechanics, known as the Navier-Lame system of equations, has not yet, due to its complexity, achieved the level of development that would guarantee the possibility of obtaining analytical solutions. This raises many questions and misunderstandings regarding the solutions of boundary value problems using widely available application packages based on finite difference approaches. <strong style="color: #000000; font-family: Verdana, Arial, Hel…
creator: Yurii Krashanytsya
rights: Copyright (c) 2025 Yurii Krashanytsya
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 12
ending page: 26
doi: 10.32620/aktt.2025.5.02

Theories of the Ranque effect: state-of-the-art critical review
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">The primary objective of this review article is to systematize and critically analyze the main existing theories that attempt to explain the causes and mechanisms of the Ranque vortex effect (the temperature separation phenomenon in a rotating flow). This study examines hypotheses based on the influence of pressure, viscosity, turbulence, secondary circulation, free and forced vortices, convective heat transfer, fluid compressibility, acoustic wind, work of inertia forces, Görtler vortices, and the Maxwellian distribution of molecular velocities on the energy separation of the rotational flow. Despite the abundance of theoretical models, there is currently no universally accepted proof that any of these mechanisms is definitive in the energy separation process within the Ranque–Hilsch tube. A review of the scientific literature reveals that the most frequently cited theoretical models of temperature separation in the vortex tube include secondary circulation (Ahlborn), adiabatic compression and expansion (Ranque), internal friction (Hilsch), free and forced vortex model (Kassner and Knoernschild). Other hypotheses receive significantly less support and validation from scientific sources. This situation highlights the need for further research aimed at experimental and numerical verification of the leading theories to establish their credibility and clarify the mechanisms of energy separation. Interestingly, the theories that have rece…
creator: Artem Karpenko
rights: Copyright (c) 2025 Artem Karpenko
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 27
ending page: 41
doi: 10.32620/aktt.2025.5.03

Research for turbocompressors with general impeller for their application in gas turbine engines and power plants
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">To develop engines and power plants, the issues of improving small-sized engines through the use of a new type of turbomachines – turbo-compressors with general impeller (TCG) have been considered. Another name for this type of turbomachine is a single-disk turbo-compressor (STC), although for bladed machines, it is not the disk that is important, but the entire impeller. The article shows a diagram of the simplest gas turbine engine using TCG. Depending on the direction of gas flow, turbocompressors with a general impeller can have two flow patterns in the inter-blade space of the impeller: direct flow and counterflow. If the directions of the gas and air flows coincide with respect to the axis of rotation of the impeller, then the flow pattern in the TCG is direct flow, with the opposite flow – counterflow. To implement a particular flow scheme in the impeller, the appropriate shape of the impeller blades and the location of the nozzle, exhaust, suction, and discharge channels relative to each other must be selected. To perform an enlarged gas-dynamic calculation of the TCG, formulas are given to calculate the power of the turbine and compressor parts of the impeller. For the operation of the TCS as an independent unit, the turbine working channel must produce the necessary power for the operation of the compressor working channel to overcome mechanical losses in bearings and disk losses. The article shows the simplest scheme of usi…
creator: Vladimir Shkabura
rights: Copyright (c) 2025 Vladimir Shkabura
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 42
ending page: 47
doi: 10.32620/aktt.2025.5.04

Development of models and methods for constructing multidimensional didactic instruments
type: item
description: <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">The subject <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">of the study in this article is the synthesis of multifactorial, predominantly eight-factor graphical logical-semantic models for knowledge representation with an open architecture for knowledge bases. <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">The aim<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2;…
creator: Serhiy Dotsenko
creator: Karyna Trubchaninova
creator: Dmytro Nor
creator: Olga Morozova
rights: Copyright (c) 2025 Serhiy Dotsenko, Karyna Trubchaninova, Dmytro Nor, Olga Morozova
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 48
ending page: 60
doi: 10.32620/aktt.2025.5.05

Application of thermal tomography method for detection of objects immersed in the ground
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;" lang="EN-US">The subject matter of the article is the processes of propagation of thermal waves excited by daily solar activity in soil with local inhomogeneities (inclusions). The goal is to develop a mathematical model of these processes and algorithms for detecting and identifying these inhomogeneities <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;" lang="UK">against<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;" lang="EN-US"> a background of high-level structural and instrumental noise. The tasks to be solved are: to analyze the state of developments in thermal tomography of the soil and the detection of objects hidden <span style="color: #000000; font-family: V…
creator: Sergiy I. Melnyk
creator: Serhii S. Melnyk
creator: Gennadiy Fedorenko
creator: Vyacheslav Kharchenko
creator: Volodymyr Kokhanovskyi
rights: Copyright (c) 2025 Sergiy I. Melnyk, Serhii S. Melnyk, Gennadiy Fedorenko, Vyacheslav Kharchenko, Volodymyr Kokhanovskyi
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 61
ending page: 75
doi: 10.32620/aktt.2025.5.06

A method for improving the robustness of neural network for aerial image matching
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">The <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">subject<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> of study in this article is neural network–based methods for aerial image matching, which are widely used in navigation, localization, and mapping tasks. A key challenge lies in the sensitivity of such methods to visual disturbances and scene novelty caused by shadows, illumination changes, and terrain variability, which limits their robustness in real-world conditions—particularly under constrained computational resources. This paper investi…
creator: Artem Korobov
creator: Yuriy Moskalenko
creator: Maksym Vynohradov
creator: Vladyslav Babych
rights: Copyright (c) 2025 Artem Korobov, Yuriy Moskalenko, Maksym Vynohradov, Vladyslav Babych
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 76
ending page: 87
doi: 10.32620/aktt.2025.5.07

Fuzzy multi-criteria evaluation of risk and safety in the point merge system
type: item
description: <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Subject of study.<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> Arrival sequencing and integrated flow management in the Terminal Manoeuvring Area (TMA) using the Point Merge System (PMS), aligned with Arrival Manager tools (AMAN and Extended-AMAN). This paper presents a transparent and robust comparison of alternative PMS configurations under traffic, weather, and surveillance uncertainty, focusing on safety, efficiency, and environmental impact. <strong style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Purpose.<span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-varia…
creator: Daniil Marshalok
creator: Oleksandr Luppo
rights: Copyright (c) 2025 Daniil Marshalok, Oleksandr Luppo
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 88
ending page: 95
doi: 10.32620/aktt.2025.5.08

Hybrid software architecture with peripheral computing for adaptive VR driving training systems with biometric feedback
type: item
description: <span style="color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">The subject of the article is the methodology for developing a hybrid three-tier software architecture for adaptive VR driving training systems with real-time biometric feedback, which ensures the distribution of functional components between the client, peripheral and microservice levels. The goal is to develop an architecture that provides a balance between minimal latency of biometric data processing for a comfortable VR experience, reduced costs, and the possibility of gradual scaling. Tasks to be solved: performing a comparative analysis of existing architectural approaches according to the criteria of latency, cost and scalability; developing a hybrid software architecture model; experimental verification of the proposed architecture; determining the scope of application of the hybrid architecture. The methods used include architectural design methods, synthesis and decomposition methods. The following results were obtained. A hybrid architecture was developed with a client layer for rendering and collecting biometric data, a peripheral layer for classifying user state and adapting training scenarios, and a microservice layer for asynchronous traffic simulation and data analytics with possible scalability. Experimental verification demonstrated a reduction in the latency of biometric data processing. The scope of application of the developed hybrid model was determined. Conclusions. The results of the study confirmed the relevan…
creator: Artur Maliuha
rights: Copyright (c) 2025 Artur Maliuha
date: 2025-11-15
publication date: 2025-11-15
number: 5
starting page: 96
ending page: 111
doi: 10.32620/aktt.2025.5.09