Práce a štúdie - Vydanie 17
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Item Práce a štúdie - celé vydanie č. 17(University of Žilina, 2025)Item Riadenie rizík spojených s únavou člena posádky(University of Žilina, 2025) Barlík, Miroslav; Kandera, BranislavThis paper investigates crew fatigue risk management in aviation, analyzing legislative frameworks from ICAO, EASA, and Slovak authorities. It explores Fatigue Risk Management Systems (FRMS) as a data-driven alternative to prescriptive flight time limitations. A case study on Žilina Airportevaluates bio-mathematical models, identifying FAID Standard as the optimal solution due to its simplicity, affordability, and suitability for smallscale operations. The study proposes a cost-effective FRMS implementation, offering practical recommendations to enhance aviation safety at regional airports.Item Vplyv digitalizácie na zamestnanosť v oblasti leteckej dopravy(University of Žilina, 2025) Bebjak, Richard; Kováčiková, KristínaDigitalization is becoming an increasingly common part of human lives and societies today. It is also slowly interfering in every process of companies to increase their efficiency and competitiveness. This thesis is specifically intended for air transport, in which it is focused on analyzing the effects of digitalization on employment. The first part of the thesis defines digitalization, digital technologies and characteristics of the labor market, along with employee satisfaction. The analysis of the current state is part of the second part of the thesis, which deals with current digital technologies and how they affect employees, and current employment trends, i.e. what measures companies are taking to improve employment in the workplace. The results of the thesis identify the impacts of digitalization on individual job positions, various positive and negative impacts on the labor market, and finally, recommendations are provided for better integration of digitalization. With these findings, the thesis achieved the desired goal of analyzing the impact of digitalization on employment in the field of air transport.Item Pokročilá aerodynamika výškových bezpilotných lietajúcich systémov (UAV)(University of Žilina, 2025) Benka, Maroš; Pecho, PavolThis article deals with the advanced aerodynamics of high-altitude long-endurance unmanned aerial vehicles (HALE UAVs). The aim of the work was to analyze the current knowledge in the field of stratospheric flights and, based on the obtained results, to design a theoretical model of an unmanned aerial vehicle capable of stratospheric flight for specialized applications. The thesis analyzes the specific conditions of stratospheric flight, including low air density, low Reynolds numbers, potential compressibility effects, and reduced control surface effectiveness. Existing HALE UAV systems (e.g., Helios, Zephyr, PHASA-35) and their aerodynamic challenges are examined. Within the scope of the work, a theoretical UAV model with a 10-meter wingspan, S1223 airfoil, and V-tail configuration was designed using Autodesk Inventor software. The aerodynamic performance of the designed model was verified using CFD simulation in ANSYS Fluent software for flight conditions at an altitude of 20 km (temperature 216.65 K, pressure 5.5 kPa, speed 25 m/s) employing the k-ω SST turbulence model and the NIST Real Gas model. The simulation demonstrated the model's ability to generate a lift of 512.5 N with a drag of 38.2 N, allowing it to carry a payload of approximately 12 kg with a total drone weight of 40.2 kg. The achieved L/D ratio is 13.42, confirming the good aerodynamic efficiency of the design for the given conditions. In conclusion, it is stated that stratospheric flight presents significant aerodynamic challenges mainly due to low air density, but the designed model demonstrated potential for specialized missions. Successful HALE UAV design requires a comprehensive and integrated approach combining aerodynamics, structures, materials, propulsion, and control systems.Item Práva cestujúcich so špecifickými potrebami(University of Žilina, 2025) Berčíková, Kristína; Novák Sedláčková, AlenaThis paper is focused on the rights of passengers with specific needs in air transport. The paper analyzes the legislative framework for the protection of these types of passengers and identifies the main challenges in the implementation process. There are described international and European regulations, with particular attention given to the rights of people with disabilities and people with reduced mobility and practice procedures at the M. R. Štefánik Airport in Bratislava and other selected airports. As a result of the research were identified the deficiencies in infrastructure, assistance services, and passenger awareness at M. R. Štefánik Airport in Bratislava and the proposal for improvements in accessibility and the quality of services for this group of passengers was prepared. The results of the analysis highlight the need for modernization of the existing system and the implementation of new proposals to enhance and ensure the safety of travel for all passengers.Item Identifikace faktorů konkurenceschopnosti Letiště Brno - Tuřany(University of Žilina, 2025) Botterová, Chiara; Tomová, AnnaThis paper focuses on the evaluation of regional airport competitiveness within the liberalized framework of the European air transport market. The main objective is to identify and assess the key factors determining the competitive position of Brno–Tuřany Airport, using a comparative analysis with Leoš Janáček Airport Ostrava. Drawing on a comprehensive literature review, nine relevant indicators were selected and quantified through a tailored competitiveness index, applied in both weighted and unweighted forms. The methodological framework enables a structured comparison of airport performance, accounting for both operational and infrastructural dimensions. The analysis reveals that Brno–Tuřany Airport demonstrates a higher level of competitiveness, particularly in terms of passenger traffic, destination network, terminal capacity, and engagement with charter carriers. In contrast, Ostrava Airport shows relative strengths in air cargo throughput and multimodal accessibility via rail transport. The results confirm the applicability of index-based approaches in capturing the multifaceted nature of airport competitiveness and offer a valuable tool for strategic planning and performance evaluation. Furthermore, the findings emphasize the dynamic character of airport markets and the importance of continuous investment and adaptability in infrastructure, connectivity, and service quality.Item Analýza aerodynamických riešení konštrukcie UAV(University of Žilina, 2025) Dubchenko, Oleksii; Bugaj, MartinThis bachelor thesis deals with the research and analysis of aerodynamic characteristics of unmanned aerial vehicles (UAVs). For the purpose of analysis, 3D models of aircraft with conventional tailplane and V-shaped tailplane were created. Then, airflow simulation was performed using CFD, where the model with conventional tailplane had an asymmetric wing profile, while the other model had a symmetric wing profile. The aim of the analysis was to compare the aerodynamic characteristics of the models, their lift to drag (L/D) ratio and the character of the airflow around the structure. The experiments showed that the model with a conventional tail achieved a better L/D ratio than the model with a V shaped tail. Although the V-tail configuration usually reduces drag, it did not yield significant improvement in this simulation. These results may have been influenced by the wing airfoils used, as asymmetric airfoils produce more lift at low angles of attack and low airspeeds. Consequently, another experiment was performed in which a conventional tail was applied to the V-tail model. This resulted in a worse L/D ratio compared to the original configuration. The obtained results suggest potential opportunities for optimization of UAV designs to increase their aerodynamic efficiency in the future.Item Identifikácia poveternostných podmienok na základe výskytu oblakov(University of Žilina, 2025) Fomina, Anna; Jarošová, MiriamThis article focuses on the relationship between different cloud types and specific weather phenomena, as well as the potential of using cloud observations for short-term weather forecasting. The research is based on the analysis of METAR reports collected at Žilina Airport during the summer months of 2024 (June–August). The study aims to identify typical features of cloud development under various synoptic conditions—such as the passage of cold fronts, periods of atmospheric stabilization, and the occurrence of convective storms. The goal is to evaluate the extent to which visual observations of clouds can improve the effectiveness of short-term forecasts and complement standard meteorological methods, thereby supporting aviation safety.Item Dopad vojenských konfliktov a politických nepokojov na leteckú dopravu(University of Žilina, 2025) Gardianová, Laura; Novák Sedláčková, AlenaThe aim of this paper is to present the impact of armed conflicts and political unrest on civil aviation, with a focus on identifying threats and analyzing the aviation sector's responses to destabilizing factors. The paper examines the influence of geopolitical events on the functioning of air transport, analyzing specific cases of countries affected by armed conflicts or domestic unrest. Attention is paid to the measures adopted in the affected airspaces and their impact on airlines, passengers, and the economy of the sector. The research also includes an assessment of the effectiveness of international sanctions related to civil aviation and their influence on the safety and continuity of air services. It focuses on the analysis of economic and operational consequences, as well as identifying possible approaches to enhancing the resilience of air transport to similar threats in the future. In conclusion, the thesis presents proposed measures that could contribute to more effective crisis management and maintaining stability in the field of civil aviation even during times of geopolitical tension. The results highlight the importance of early risk identification and the necessity of a coordinated international response aimed at minimizing the negative consequences for air transport.Item Analýza systému spoplatnenia leteckých navigačných služieb(University of Žilina, 2025) Granát, Michal; Materna, Matúš; Nichtová, RadoslavaThe goal of this thesis is to analyse the system of air navigation charges of air navigation service providers in Europe. The thesis explains the role of charging system, describes, reasons why it was necessary to implement this system, analyses individual phases of its implementation and examine current charging schemes. The methodology of this thesis uses a synthesis of theoretical knowledge, a comprehensive development of the analysis in charging scheme, an analysis of current charging scheme a comparison of different implementation phases and an evaluation of differences between phases. Thesis analyses methods of route and terminal charges calculations, unit rates and cost effectiveness of air navigation services providers in each phase. The outcome of this thesis is a summary of four development phases analysis, highlighting differences between methods of charges calculations, differences in cost-effectiveness of providers in Europe and differences in regulations.