Práce a štúdie - Vydanie 12

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/729

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Noise load at the airport M. R. Štefánik in Bratislava
(University of Zilina, 2022) Štefanec, Filip; Kazda, Antonín
The aim of the article is to describe the current state of noise pollution at the airport M.R. Štefánik and analyze the change in noise pollution when changing the occupancy level of the airport M.R. Štefánik in Bratislava. Another goal of the article is to design an optimal runway system that would be suitable for the future needs of the airport and to compare the current noise load of the current runway system with an alternative noise load when changing the configuration of the runway system. The article also briefly describes the noise, the factors influencing its spread in various environments, the reasons for the generation of noise in air transport and its negative effects on people or the environment.
Digitalization of the maintenance process for the needs of the CAO organization
(University of Zilina, 2022) Mariňák, Róbert; Braciník, Tomáš
Digitalization and automation are unstoppable processes that are linked to the present and have a significant impact on the efficiency of the work carried out in aviation or any other industry. The aim of this article is to create a digital maintenance environment for the needs of the Combined Airworthiness organisation (CAO), which is part of the Air Training and Education Centre of the University of Žilina. Such software would unify and facilitate the overall maintenance process performed by the CAO. In this article we have evaluate the requirements of the CAO organisation and the legislation in force. During the development process, we communicated extensively with both the experts and the maintenance staff for whom we were developing the program. Then, based on what we learned, we created a basic structure of the required software and hardware needed to create a digital maintenance environment and started building it. We have then described all the processes involved in the program and its components to the extent that this article can partially serve as a guide for the creation of such a program. Methods of drawing on software and hardware resources have been purposely limited in the article to free products or to those, that are commonly available in price. The work has resulted in functional software that contains all the necessary documents, job cards and forms to carry out maintenance and substantially replaces the more paper-intensive form of data entry and storage.
Design and implementation of equipment for partial use of combustion engine exhaust energy
(University of Zilina, 2022) Szarowski, Alec; Čerňan, Jozef
The content of the diploma thesis was the design and implementation of equipment for the partial use of exhaust gas energy of the internal combustion engine and the possibilities of using this equipment in internal combustion engines. The aim of this work is to design a scheme and 3D model of the converter for energy recovery from exhaust gases based on magnetohydrodynamics, and also to provide scientific information and inform the reader as much as possible about the theory of magnetohydrodynamics and the use of these theories in energy recovery. The work provides scientific information in the field of hydrodynamics, magnetohydrodynamics of engines and emissions and in the practical part is designed and built magnetohydrodynamic converter which was one of the main objectives of this work together with key information from the researched area and their application to the converter.
The issue of glycaemia and heart rate variability of flight crew during emergency situations using HRV corsense elite
(University of Zilina, 2022) Pudíková, Alžbeta; Škvareková, Iveta
The purpose of this article is to research the issue of glycaemia and heart rate variability (HRV) of flight crew, while these physiological processes are investigated during emergency and abnormal situations on the flight simulator. Stressful situations, which pose dangerous emergency situations for pilots during the flight, raise blood sugar level to ensure the brain has enough glucose during stressful situations. The attention is also given to assessing the effect of fasting blood glucose on flight crew performance, stress and heart rate variability. We try to focus on the overall evaluation of the impact of the above physiological processes during flights in which selected emergencies occurred in order to increase the level of stress hormone – cortisol, which is produced during workload and stress. The autonomic nervous system and its parasympathetic and sympathetic branches affect the heart functioning and its activity. The methods used to measure blood glucose and heart rate variability are non invasive methods of measurement. The survey compares the results of measurements from samples of ten pilots studying the field of professional pilot. As proper eating habits are important for safe flight, we are trying to find out how the absence of food for at least 12 hours can affect pilot’s performance as well as heart rate variability in the research.
Selection of the appropriate type of hems helicopter for the Slovak Republic
(University of Zilina, 2022) Neština, Patrik; Škultéty, Filip
The diploma thesis deals with the issue of choosing the appropriate type of helicopter for the implementation of the Helicopter Emergency Medical Service (HEMS) for the Slovak Republic. Currently, the Helicopter Emergency Medical Service is operated by a private company Air Transport Europe, Ltd., based at Poprad-Tatry Airport. The fleet of helicopters for rescue missions consists of three types helicopters. The oldest helicopter is the Agusta A109K2, then BELL 429 since 2013 and Eurocopter EC 135 T2+/P2+ since 2019. The aim of this thesis is to create an analysis of the current state, review affecting parameters such as operator options and possibilities, operating costs, maintenance costs, use due to the geographic features of the Slovak Republic and use of the helicopters for transporting patients with Covid-19 and other highly contagious diseases. The result will be the selection of the appropriate type of helicopter of the Helicopter Emergency Medical Service to be used under the conditions of the Slovak Republic.
Requirements for CAT SET-IMC certification
(University of Zilina, 2022) Královenský, Marek; Škultéty, Filip
The diploma thesis deals with requirements for certification of single-engine turbine aircraft involved in commercial air transport and operated in instrument meteorological conditions or at night. The work in the first part introduces the theoretical background of the whole problem and presents to the reader the reasons why the approval of this type of operation in Europe was necessary. Subsequently, the second part of the work states all necessary requirements for obtaining approval for this type of operation, including the legislative framework and the risk analysis. The following section in work demonstrates different values of risk periods along the same route, depending on different conditions affecting aircraft performance. It also introduces possible new means for increasing safety in case of engine failure and subsequent drift down. The aim of the work is to provide a comprehensive overview throughout the certification process and offer existing operators new solutions for their SET-IMC operations, which could also improve their level of safety.
State aid schemes in aviation sector in times of the crisis caused by COVID-19 as a tool to revitalize the sector
(University of Zilina, 2022) Osvald, Frank John; Novák Sedláčková, Alena
This article is focused on state aid schemes as a tool to revitalize the sector in times of crisis COVID-19. The aim of the article is a comprehensive analysis of state aid in air transport and the subsequent proposal of measures to revive the sector and a proposal for changes in the air transport market after the coronacrisis. Article defines the various stages of state aid in air transport in the past as well as during the crisis caused by the spread of COVID-19. There are analyzed approaches to dealing with state aid to airlines and airports before and during the crisis. At the same time, the article also focuses on the impact of the coronacrisis on air navigation service providers. In the end are identified key components to revitalize air transport and the proposal of changes in the air transport sector caused by the coronacrisis.
Danger of icing when operating unmanned aerial vehicles
(University of Žilina, 2022) Ondrejková, Ivana; Kandera, Branislav
The 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.
Problematics of air traffic noise around Trenčín airport
(University of Zilina, 2022) Biskupič, Tomáš; Kazda, Antonín
The choice of the topic reflects long-term need of municipalities around the Trenčín airport to handle the situation regarding noise exposure from air traffic. The main goal of the thesis is to evaluate and to design optimal flight procedures and practices to decrease noise polution in the vicinity of the airport. In thesis we analyze public and flight crew and airport operator opinion from multiple points of view. We compare the perception of the public, their social situation to the present air traffic operations and flight practices. The thesis includes analysis linked to the by-laws, regulations and standards and recommended practices on Public Health Authority of Slovak Republic and European union egislation with respect to public noise regulations, flight rules, air law, flight safety and aircraft noise certification. We compare the issue to similar xamples of noise restrictions abroad.
Quality of services provided by Boryspil airport
(University of Zilina, 2022) Turkinevych, Yelyzaveta; Badánik, Benedikt
The aim of the diploma thesis is to develop a proposal for the implementation of the SmartGate system to improve the passport control process in international passenger transport services at the Boryspil Airport. The theoretical part deals with the existing methods of evaluating the quality of airport services and offers an algorithm for airport service quality indicators stigmatization. The analytical part of the work is devoted to the analysis of production and financial activities and competitive advantages of Boryspil Airport. In the project part, modern information technologies of air transport services at the world's leading airports were considered and the efficiency of the SmartGate system implementation at Boryspil Airport was calculated.
Aircraft recycling system optimalization and aircraft sections re-use possibilities after the end of their economic life
(University of Zilina, 2022) Chebeň, Juraj; Rostáš, Ján
Purpose of this article is to evaluate re-use of sections from retired aicraft for further usage and additional optimalization of recycling and re-use of materials used in aircraft construction. With hundreds of commercial airplanes retired every year, the need for innovative approaches in recycling process rises. The concept of re-using parts from retired aircraft is not new. Before scrapping, valuable parts are of course stripped of the airplane. The article assesses if there is possibility to re-use parts and sections that usually end up scrapped in aviation and under which circumstances. Its first part is focused on analysis of procedures currently utilized during aircraft recycling, including brief description of decomissioning process, current state aircraft recycling in general, processes of disassembly and dismantle, existing facilities, description of recycling of alloys and composite materials. Second part deals with legislative, technical and environmental options of aircraft recycling and re-using aircraft sections. Third part focuses describes current parts market, together with proposal how to make it more efficient, current and possible future trends concerning aircraft recycling and re-use of materials and comparison of recycling between USA and Europe
Práce a štúdie - celé vydanie č.12
(University of Žilina, 2022)
Specification of ultralight aircraft maintenance standardisation
(University of Zilina, 2022) Maliňák, Ivan; Škultéty, Filip
The exact definition of an Ultralight Aircraft is still defined very differently from country to country. Internationally, there are different Ultralight Aircraft (UL) classes with nationally varying certification regulations. Accordingly, the term Ultralight Aircraft is used colloquially more or less comprehensively for Very Light Aircraft or Light Sport Aircraft. However, the latter are subject to much stricter certification and maintenance regulations. This work aims to compare the current legal situation in the European Union countries, extract the best practices, and create a proposal of how a new “state zero” should define the laws and regulations to create the best possible environment for UL maintenance. This thesis is written based on information and directions published on the websites of the responsible authorities of the respective countries, as well as communication with these authorities and first-hand knowledge obtained by conducting numerous interviews with people in the field of UL maintenance. The results indicate how different each country regulates the maintenance and continuing airworthiness of ULs and how important a harmonized regulation would be. It is especially important in order to have clarity as with larger aircraft and thus also to prevent numerous accidents and hazardous situations in the future.
Impact of fatigue on pilot reaction time
(University of Zilina, 2022) Sloboda, Peter; Škvareková, Iveta
The main goal of the diploma thesis is to analyze the impact of fatigue on the reaction time of the pilot, its possib;ilities of elimination and ways of solving the problem, which greatly affects safety in air transport. The measurements took place at different times, in the morning and in the afternoon, on the basis of which we will compare the length of the reaction time to visual stimuli affected by fatigue. We performed measurements for safety reasons on the L-410 simulator. The simulator is equipped with two cameras based on which we will analyze the length of the reaction time.
Influence of stress on the performance of pilots in training
(University of Žilina, 2022) Goldschmidt, Jakub; Kandera, Branislav
This 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.
Design of particle image velocimetry system for the wind tunnel of University of Žilina
(University of Zilina, 2022) Pancurák, Daniel; Pecho, Pavol
Due to always ongoing innovation in research ability of our research facility it was decided to innovate already existing wind tunnel by implementing system of Particle Image Velocimetry. Main goal of this thesis is to create sufficient technical solution for implementation of Particle Image Velocimetry measuring systems. This system will allow creation of accurate measurements of aerodynamic forces and visualise airflow direction and its strength. Implementation of this system consists of designing sufficient structure to allow proper mount and movement of laser light source, which will be high power laser and mount for camera, which will be used to capture images of airflow of measured parts. In terms of laser stand, the main goal was to simplify the construction to decrease costs of structure and to create room for future upgrades and implementations of possible motorisation and electronic controls. For main construction were chosen steel profiles with square cut and size of 30x30 mm to match already existing construction used to stabilise measured part in test chamber. Implementation of this system of measurement will increase research abilities and it will create room for more projects, which depend on this method of measurement. Particle Image Velocimetry has wide range of usage from automotive industry through aviation to designing of spray nozzles. This will create large research opportunities for other facilities and professionals from different parts of industry, since this technology will be one of the first implemented into wind tunnel in Slovakia.
Impact of COVID-19 pandemic on pilot training
(University of Žilina, 2022) Butuk, Yosef; Škvareková, Iveta
The COVID-19 pandemic had a negative impact on all areas of human development. The air transport industry has been forced to adopt virtually all of its activities to meet rapidly changing travel regulations and requirements. The main goal of this paper was to identify the impact of the pandemic on pilot training. For this purpose, an analysis of many aspects were carried out, such as, for example, the impact of the pandemic and related restrictions on the psychological state, physical health, and the very quality of education in these difficult times. The paper also contains information about the pandemic's impact on aviation in general and active pilots, and about how the pandemic affected them.
Technical and procedural resources of overhead bin security
(University of Zilina, 2022) Fraňková, Daniela; Rostáš, Ján
The article deals with the design of safety systems to prevent the opening of overhead wires in situations that are not in accordance with safe operation. The paper discusses possible variants of the functioning of the locks, as well as a theoretical part focused on the reasons for such behaviour of passengers. Subsequently, the article describes two options for locking overhead bins and a description of their operation and manufacture. The article concludes with an assessment of the usability of the locks and their potential.
Airport operation disruptions
(University of Žilina, 2022) Beťková, Kristína; Kazda, Antonín
Disruptive events have a very strong potential to create a problem, spreading onwards to different participants in the chain of air travel. To minimalize the negative effects, this paper focused on how an airport can deal with disruptive operations effectively. The target of this paper was to come up with a step-by-step method, that airports could follow when coming up with a plan on how to manage their operations during these events. In order to reach this goal, it was essential to understand the principles causing disruptions and furthermore, categorizing them respectively. In addition to that, we had to find out what is the contribution of each category to the overall state of delays. Thanks to interviews with professionals at different international airports, we were able to come up with plans of trainings and exercises as a part of the suggested strategy. At the same time, in the proposed plan, several factors were mentioned, which were considered as an important part of the operations during interruptions that airports should not forget about.
Use of transparent displays in aviation
(University of Žilina, 2022) Haladěj, Viktor; Rostáš, Ján
The introductory part deals with the design and technologies used in HUD systems and their history of introduction into the aviation industry. Furthermore, the work deals with the implementation of transparent displays in civil transport aircraft and the benefits of their use with respect to the human factor of the crew in low visibility operations. After the part devoted to airliners, there is a chapter describing the possibilities and technical solutions for the installation and use of HUD technology in general aviation aircraft. The final points then point out the advantages and disadvantages of installing this technology in aircraft.