Univerzitná knižnica - Zborníky
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Item Analýza prevádzkových rizík UAV(University of Žilina, 2024) Cuker, Alex; Kandera, BranislavThis article focuses on a comprehensive analysis of the operational risks associated with the use of Unmanned Aircraft Systems (UAS). The introductory section discusses the rapid development of UAS technology and the legislative framework governing their use, including the introduction of a UAS park at the University of Žilina. The main part of the article is dedicated to assessing the risks associated with UAS operations, where efforts were made to identify and consider all possible factors affecting safety. Challenges associated with rapidly changing technologies and external factors underscore the need for ongoing development and refinement of risk assessment methodologies, such as the Specific Operations Risk Assessment (SORA) developed by EASA, which was applied in this article. The work provides a foundation for creating a SORA analysis, essential for obtaining permissions for flights in the "specific" category.Item Prevádzková bezpečnosť bezpilotných prostriedkov s elektrickým pohonom(University of Žilina, 2024) Kalafut, Lukáš; Kandera, BranislavThe increasing adoption of electrically powered unmanned aerial vehicles (UAVs) has raised concerns about their operational safety, particularly with regards to battery technology. Lithium-based batteries, commonly used in UAVs, pose unique safety challenges due to their potential for thermal runaway, overcharging, and physical damage. The aim of this paper is to investigate the operational safety of electrically powered UAVs, with a particular focus on their battery systems. Theoretical part discusses basic types of UAVs, their electric propulsion system and the different types of batteries used in UAVs, in particular their advantages and disadvantages as well as their composition. Then, the paper also briefly explores and introduces BMS technology and its functions. In the last section of this paper, we look at the principles and practices of proper battery handling.Item Vývoj prístrojového vybavenia lietadiel všeobecného letectva(University of Žilina, 2024) Uhríková, Peregrína; Kandera, BranislavThe bachelor's thesis is devoted to the development of general aviation aircraft instrumentation. It contains a detailed description of the principle of operation of individual elements of the analog instrument panel. The separate text is supplemented with pictorial material, where the structural part of the instrument elements is drawn in detail, thanks to which the reader can better understand the principle of work of the mentioned aircraft instruments. The next part of the work specifies the transition to digital instrument panels and it lists the advantages and disadvantages of the modern cockpit, as well as the reasons why general aircraft designers switch to the new instrument panel concept, the so-called glass cockpit. The elements of the digital instrument panel are characterized in the next part of the thesis, which describes individual types of display units – CRT, LCD and LED. It also deals with the individual elements that are found in digital instrument panels and also describes in more detail the MEMS technology that is the basis for the function of the modern cockpit concept. The bachelor´s thesis also deals with the historical development of the layout of the instrument panel and familiarizes the reader with the difference in visualization of information on individual instrument panels. This part of the work is supplemented with visual material, through which it is possible to become better acquainted with the display of data on the traditional and modern type of cockpit. The aim of the work is to create study material for students of the field focused on air transport and an interactive presentation for familiarization with the basic control of the Dynon SkyView digital instrument panel. The thesis also contains the methodology and methodology of the work, which defines what research methods were used in the thesis.Item Enhancing safety in glider flights(University of Žilina, 2023) Gánovský, Martin; Kandera, BranislavThe theme of paper is to find out new possibilities in safety improvements during sailplanes flights, focusing primarily on flights when the separation with other traffic is reduced. At the beginning a summary of glider evolution across the centuries is made starting with the interwar period to the shapes that we know from the latest exhibitions. First part of the paper is followed by the analysis of the current available technical measurements which enhance safety and reduce the probability of in-flight collisions during various phases of flight, including latest and most modern technical implementations used by glider operators to enhance the safety of themselves and others. We will also look up for any available legislative rules based both on national civil authority regulations defined by state itself and for regulations that were created by Fédération Aéronautique Internationale (FAI) which covers most of glider competitions organized world-wide. In practical part we followed our thoughts about how to improve the current situation in this part of the aviation industry. In following steps, we decided to ask the glider pilots about their personal experience with reduced separation caused by nearby gliders during different phases of operations. Generally, there is a huge number of mid-air collisions during sailplane competitions and flight phases where pilots are crossing each other by minimal separation (mountain ridge flying). We decided to suggest minor legislative regulations and technical implementations to improve current situation world-wide and make these flights as safe as possible with minimizing of future incidents.Item Danger of icing when operating unmanned aerial vehicles(University of Žilina, 2022) Ondrejková, Ivana; Kandera, BranislavThe paper examines icing on Unmanned Aerial Vehicles (UAV) during the flight. We chose the Mavic Pro and Mavic 2 Pro UAV by company DJI to carry out the research. Research flights are performed during the early morning hours with meteorological conditions suitable for icing. We use the AirData application to analyse flight data. The aim of the work is to find out how dangerous icing is, what meteorological conditions are suitable for icing, how fast icing is formed during the operation of an unmanned aircraft and how it is possible to suppress or eliminate icing. In introduction of this work elaborated theoretical knowledge about the formation of icing and its types. Subsequently, the negative effects of icing on the flight are described, such as changes in lift, drag, controllability of the aircraft and others. The following section describes the accidents of UAV due to the impact of icing. After analysing the data from the mentioned application, we proposed recommendations for pilots of UAV. Before the flight, we recommend checking the meteorological forecast, focusing on the temperature and humidity at the flight area, usually up to 120 meters above the Earth surface. In-flight recommendations include monitoring rotation speed of propellers and frequent inspection of propellers in meteorological conditions suitable for icing and others.Item Influence of stress on the performance of pilots in training(University of Žilina, 2022) Goldschmidt, Jakub; Kandera, BranislavThis paper deals with the influence of stress that affects pilots in training, how stress affects their daily lives, but especially how it affects their concentration and performance during pilot training. It describes what risks, whether mental or physical, can occur to pilots in training. It also discusses about the factors that affect pilots. One of the factors is the kinetosis, to which more attention is paid and which had also become the subject of the research in this diploma thesis. The aim was to use a questionnaire to find out whether the pilots in the training encountered signs of motion sickness during the training, how it affected their concentration and how they dealt with these situations. In conclusion, based on these responses, we suggested possible preventive solutions for other future novice pilots on how to avoid motion sickness and if it had already occured, how it should be eliminated as much as possible not to affect performance and concentration of pilots.Item Specific risks of helicopter aerial works and their elimination(University of Zilina, 2022) Hajduková, Gréta Mária; Kandera, BranislavSafety is the highest priority in all aspects of air transportation. This paper is focused on different hazards and risks that might be encountered by helicopters during different types of aerial works and offers ways to mitigate those risks. The introductory part lists companies who are currently licensed for helicopter aerial work in Slovakia and outlines different types of aerial works. The methodology process describes four steps, which are then executed in the central part of the paper. The main part was written as a result of combining two different approaches to hazard identification – reactive and proactive – which encompassed studying and analyzing reports from helicopter accidents and incidents, as well as brainstorming techniques with assistance from aviation professionals. The results provide different mitigating techniques to lower assessed risks to tolerable values, along with alternative proposals of risk mitigation to air operators.Item Development of flight instruments for general aviation aircraft(University of Zilina, 2022) Ďuricová, Ema; Kandera, BranislavGiven the constantly evolving offer proposed for aircraft equipment, the aim of my work is to describe the innovations, that have been implemented in aircraft instruments. The content of the work is divided from the very beginnings of aircraft instruments and their gradual use and expansion. Subsequently, I deal with the data that are displayed by the devices, but also their design and the comparison of the current state compared to the initial versions. Innovations of aircraft instruments are focused on both components and the display of flight data, which leads to simplification of their operation and individual assembly. One of the advantages of modern instruments is their ability to detect errors that may occur during the flight, which serves the pilots to ensure the flight. Furthermore, I focused on the system of collection, processing and evaluation of information, as well as their final production on board the aircraft. My work is mainly focused on the Dynon system, whose functions, display and implementation I described in detail, use and design in aircraft cockpits. The main goal of the thesis is additional processing of information for the subject Aircraft Instruments I and their processing from the student's point of view.Item Monitoring of technical state of unmanned aerial vehicles(University of Zilina, 2022) Lagin, Samuel; Kandera, BranislavThe aim of this work is to study current possibilities of monitoring the technical state of the unmanned aircraft from the most basic activities to the more advanced aircraft systems. Partial goal is to create a simple general maintenance checklist for cases when the manufacturer does not publish any maintenance procedures, or the manufacturer is the owner and pilot of the aircraft, in case of DIY aircraft. Theoretical part is devoted to description of most common components of current UAVs and their possible failures and stating current possibilities for maintaining awareness of the technical state of the aircraft prior to, during and after the execution of a flight. Second part will state how to extract the flightlogs and what tools can be used to analyze them. The result of this work is creating general maintenance checklists as well as stating the information about the process of modifying this checklist for the UAV in question. Mentioned checklists will be created for pre-flight, post-flight and regular maintenance check.Item Inspecting activities with unmanned aerial vehicles in the energy industry(University of Zilina, 2021) Beszédes, Vladim; Kandera, BranislavThe paper acquaints the reader with the use of unmanned aerial vehicles in the energy industry. The first chapter is devoted to the distribution of unmanned aerial vehicles and the distribution of energy as a sector where, according to individual categories, the activities of UAVs in a specific category are described. The second chapter discusses in detail the situation in Slovakia, what legislative acts are subject to inspection activities and to what extent the use of UAV is represented in individual categories of energy in Slovakia. In the following pages, we performed an exemplary high-voltage inspection flight and described the necessary steps to perform a safe flight. In the last fourth chapter, the findings and findings related to the paper and the final summary are evaluated.
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