Polish Air Force Academy

Dęblin, Poland

Polish Air Force Academy

Dęblin, Poland

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Pasieka M.,Polish Air Force Academy | Grzesik N.,Polish Air Force Academy
Proceedings of the 2015 IEEE 8th International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, IDAACS 2015 | Year: 2015

Described project of fuzzy control cowl flaps changes the air flow in the engine compartment to maintain the optimum engine temperature. Operating is based on the current parameters of the engine and aircraft maneuvers. The project provides real reduction in pilot workload during important moments of the flight. © 2015 IEEE.


wiatnicki Z.,Polish Air Force Academy
2015 4th IEEE International Conference on Advanced Logistics and Transport, IEEE ICALT 2015 | Year: 2015

This thesis presents the travelling salesman problem and the application of heuristics in ant colony optimization algorithms. The thesis also discusses the results of an experiment carried out to solve the travelling salesman problem using the ant colony system with different heuristics. An example is focused on heuristics application and comparison. © 2015 IEEE.


Grzesik N.,Polish Air Force Academy
Aircraft Engineering and Aerospace Technology | Year: 2016

Purpose - In the era of common digitalization and far reaching progress in the field of cybernetics, it is necessary to use the knowledge and experience in military cybernetics applications. In the field of machines, control fuzzy expert inference systems open new horizons and possibilities. Generally, the main affect of human efforts in the case of artificial intelligence is to create a machine with a set of behaviors and attitudes that would allow it to work independently, with ability to adjust to changing environmental conditions and an advisory role in the decision-making process. It should be noted that this technology used in some cases has already produced successful results. This paper aims to describe how the fuzzy expert inference membership function shapes influence analysis on selected air tasks efficiency evaluation results. Presented results prove that proper fuzzy membership functions shape selection has fundamental influence on aircraft system level of efficiency evaluation (its calculation accuracy). Using this technology in military aviation air tasks efficiency evaluation aspects is pioneer. Design/methodology/approach - In the era of common digitalization and far reaching progress in the field of cybernetics, it is necessary to use the knowledge and experience in the domain of cybernetics in military applications. Artificial intelligence that so much influences on the imagination of scholars actually opens new horizons when it comes to control the machines. Relatively recently, it is introduced for military applications such departments of artificial intelligence as fuzzy logic, expert systems and fuzzy control theory. Findings - In this paper, fuzzy expert inference membership function shapes influence analysis on selected air tasks efficiency evaluation results are described. Presented results prove that proper fuzzy membership functions shape selection has fundamental influence on aircraft system level of efficiency evaluation (its calculation accuracy). Practical implications - The issue solved in the paper is based on application of theoretical results in practice. The paper can be estimated to bridge the gap between theory and practice in specific field. Originality/value - Using this technology in military aviation air tasks efficiency evaluation aspects is pioneer. © Emerald Group Publishing Limited.


Fibre reinforced composites are often used in airplane structures because of their specific strength. One type of the materials are layered composites (laminates) applied inter alia in aircraft's covering production. Laminate is susceptible to damage resulting from impacts, the effect of which is usually invisible during macroscopic observation. The article presents results of a preliminary examination of layered composites obtained from an airplane element loaded impactly with low energy. During testing, pieces were loaded with 2.5; 5 and 10 J energy and then they were put on bend tests. The material bending strength after a shock load with 2.5 and 5 J energy remains almost unaltered, but for 10 J energy, it decreases by more than 30% in comparison to undamaged material. As a result of the examination, it was ascertained that in all cases the exact location of the damage could be difficult to find, which is a significant maintenance problem.


Oszczak B.,University of Warmia and Mazury | Oszczak B.,Polish Air Force Academy
Artificial Satellites | Year: 2014

The GNSS standard positioning solution determines the coordinates of the GNSS receiver and the receiver clock offset from measurements of at least four pseudoranges. For GNSS positioning, a direct solution was derived for five and ten observed satellites without linearisation of the observation equations and application of the least squares method. The article presents the basic principles of methods for solving the positioning problem, the formulas and their derivation. The numerical examples with simulated pseudorange data confirm the correct performance of the proposed algorithm. The presented algorithms should be further tested with real measurements in other domains of positioning and navigation as well.


Part II of the publication concerns the next module of the project on the virtual cockpit. It is a very useful and handy educational tool for young flying adepts and ground personnel who can improve their knowledge about F-16 on-board operations on avionics and armament systems. The students (pilots and technicians) can also get familiar with integrated on-board diagnostics subsystems. Moreover, the paper examines a possibility of analysing malfunctions and faults faced during flight and within the process of maintenance. © (2015) Trans Tech Publications, Switzerland.


Grzesik N.,Polish Air Force Academy | Sobolewski M.,Polish Air Force Academy
Aviation | Year: 2014

In this article, a project of on-board control system with fuzzy efficiency of air-task estimation subsystem for UCAV rockets is presented. Moreover, some features allowing the use of fuzzy logic subsystems in unmanned aviation will be described as well. Complexity of the project and some mathematical calculations required relevant assumptions which are also reported. Finally, prognosis about operation of the system and conclusions are provided. This article is an integral part of authors scientific research. Copyright © 2014 Vilnius Gediminas Technical University (VGTU) Press.


Grzesik N.,Polish Air Force Academy | Kowalik K.,Polish Air Force Academy
Solid State Phenomena | Year: 2016

Authors research concern use of fuzzy expert systems in military and civilian aviation applications. Generally, the main effect of human efforts, in the case of those systems, is to create a machine with a set of behaviors and attitudes that would allow it to work independently, adjustable to changing environmental conditions and participate in decision making process. Fuzzy expert inference system supporting aircraft anti-icing system designing algorithm was described in this publication. The system uses Matlab, Fuzzy Logic Toolbox software. All problem analysis are only authors point of view about anti-icing system support. Use this technology in aircraft anti-icing system is pioneer. There are lack of publications in this topic in worldwide literature. © 2016 Trans Tech Publications, Switzerland.


Komorek A.,Polish Air Force Academy | Przybylek P.,Polish Air Force Academy
Solid State Phenomena | Year: 2015

The article presents a description of the impact block shear test method of adhesive joints. Based on ISO 9653 and literature, a pendulum machine was upgraded to make impact strength tests of adhesive joints and validation studies were conducted to determine the parameters of instrumentation and block samples. As a result of the experiments, a range of the usable length of the adhesive joints and methods of adhesive joints preparation was selected, and the adopted method of attachment of the sample in the holder and the pendulum durability were determined. A series of tests on adhesive joints were conducted using samples bonded with adhesive composition Epidian 57 with Z1 hardener for one bondline thickness. Preliminary findings from the research will be used in subsequent, relevant research. © (2015) Trans Tech Publications, Switzerland.


Grzesik N.,Polish Air Force Academy | Czapla R.,Polish Air Force Academy
Safety and Reliability: Methodology and Applications - Proceedings of the European Safety and Reliability Conference, ESREL 2014 | Year: 2015

In this publication the authors presented a proposal to use fuzzy expert systems in crew escape onboard pilot decision making systems. The subject of research is to ensure the ability of those systems to adapt to changing environmental conditions and, in consequence, their reliable operation (support and ensure pilots' safety. The authors use fuzzy logic to present advanced work in this field. The development of fuzzy expert aircraft onboard pilot decision making system assistant projects used by a pilot in emergency situations is referred to in the study. One of the projects was presented in the publication. It has been developed on the basis of Matlab Fuzzy Logic Toolbox and Simulink software. Complexity of the problem cause imposed restrictions. This publication is an integral part of the author's scientific researches. © 2015 Taylor & Francis Group.

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