Theses (Department of Vehicles Engineering)
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Theses collection of the Faculty of Engineering.
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Megjelenítve 1 - 20 (Összesen 22)
Tétel Korlátozottan hozzáférhető Technical implications of Pareidolia as a Measure of Human Performance Factor in Aviation Pilot Training A case study on Debrecen University Professional Pilot StudentsYilmaz, Halil Eren; Husi, Géza; DE--Műszaki KarThis research aims to determine University, Hungary professional pilot student’s sensitivity and reactions toward pareidolia images as a measure of the Human Performance factor. The study comprised a total of 86 participants, consisting of 22 females and 64 males. All participants completed the pareidolia test, which consisted of three types of stimuli: face images, face pareidolia images, and scramble images. The significant association between stress levels due to flight training and participants' perception of emotion in the face images suggests that stress may influence the interpretation and recognition of facial expressions. The increase of stress levels experienced due to flight training and faculty courses may affect individuals' ability to accurately perceive and interpret emotional clues in facial expressions, potentially impacting their decision-making abilities in high-pressure aviation contexts.Tétel Korlátozottan hozzáférhető The Impact of human factors on flight safety, including accidents and incidents caused by pilot error, communication breakdown, and automation dependence.Boppani, Pruthvi; Husi, Géza; DE--Műszaki KarThe purpose of this thesis is to examine the impact of human factors on flight safety, with a focus on accidents and incidents caused by pilot error, communication breakdown, and automation dependence. The thesis aims to analyze the underlying causes of these factors, the challenges they present to the aviation industry, and the measures that can be taken to mitigate their effects. The study will draw on relevant literature, case studies, and expert opinions to provide a comprehensive analysis of the issue and offer recommendations for improving flight safety. By identifying the key human factors that contribute to aviation accidents and incidents, this thesis seeks to provide insights that can help aviation professionals develop better safety practices and protocols.Tétel Korlátozottan hozzáférhető POTENTIAL OF THERMOELECTRIC RECUPERATION IN AVIATIONDhupar, Adammy Pratap Singh; Husi, Géza; DE--Műszaki KarThis research aims to determine the introduction of advanced thermoelectric technology in the field of aviation energy in the context of increasing sustainability. It considers environmental problems of the aircraft and the potential contribution of thermoelectric systems. Statement of the problem results in research question, which has found the answer by investigating passenger prioritization and determining the possible benefits and limitations of thermoelectric use. The results demonstrate the perspective of possible greener aviation devotion the discussed concerns. Nevertheless, the technical and regulatory issues are to be resolved to implement the proposed solutions. Thus, the thesis offers a perspective of using the waste thermal energy for making aviation closer to sustainability.Tétel Korlátozottan hozzáférhető Future of Aviation-Hybrid and Electric AircraftRidwan, Roufun; Menyhárt, József; DE--Műszaki KarWith few commercial aircraft in service, the electric aircraft industry is still developing. Creating dependable battery technology for extended flights and infrastructure for maintenance and charging present challenges. The thesis looks at how aviation might alter because of electric aircraft technology. In the rapidly growing aircraft sector, cryogenic superconducting propulsion for hybrid and all-electric aircraft is becoming more and more widespread. HEA is composed of mechanical and electrical parts, with additional energy coming from batteries and combustion-type power sources. With an emphasis on Urban Air Mobility applications and advancements in power electronics converters, electromagnetic design, thermal engines, and control techniques, the aircraft industry is investigating novel propulsion technologies for environmental reasons. Superconducting materials could increase the efficiency and compactness of aircraft electric propulsion in higher-specific-power electric motors. Aviation-compatible battery development is difficult to forecast, but with improvements in cell chemistry and pack design, 500 Wh/kg battery packs may be accessible in the mid-2030s. To develop long-range battery technology and evaluate the impact of electric aviation on local grids, industry, academia, and government must work together.Tétel Korlátozottan hozzáférhető A comparative analysis of Instrument Landing System and Ground-Based Augmentation System Landing System for aircraft landing guidanceAzjargal, Gombo-Ochir; Géza, Husi; DE--Műszaki KarAchieving a successful aircraft landing demands reliable and safe approach guidance, particularly under low visibility conditions. Although various aircraft landing guidance systems coexist in aviation, this thesis concentrates on a comparative analysis of the Instrument Landing System (ILS) and the Ground-Based Augmentation System Landing System (GLS) from multiple perspectives. The fundamental principles of each system are explained in detail to provide distinction between their operational and technical characteristics as well as their working mechanisms. Core differences and similarities between ILS and GLS are subsequently compared in terms of accuracy, reliability, safety, and economic considerations. Furthermore, a case study is presented to illustrate the current application of both systems, followed by future trends in landing guidance technologies. Through this comparative analysis, the thesis provides a comprehensive understanding of ILS and GLS, including their distinctions and potential contributions to aviation.Tétel Korlátozottan hozzáférhető Plasma Kinetics Revolutionizing the Storage of Hydrogen in AviationShahrear, Mohammad Fahim; József , Menyhárt; DE--Műszaki KarThe study of the thesis starts with the emissions of green-house gases by the aviation industry and goals to reduce it by 2050. The fuel tanks of modern planes are discussed in order to find suitable position to place our hydrogen tanks. the research then proceeds to discuss different storage techniques of hydrogen. A briefly study is done how conventional hydrogen gas is produced and how to produce hydrogen in carbon neutral way. The main research develops towards comparing three critical hydrogen storage techniques where the comparisons between compressed, cryogenic and solid state hydrogen storage is done. Then the author main idea of using Plasma kinetics storage system of capturing and releasing purest hydrogen is done and the main advantages of the system is done. the low cost infrastructure model of using Plasma Kinetics model is then discussed. At the end of thesis, the challenges, future research and reducing the production cost od Plasma Kinetics hydrogen model is discussed for aviation.Tétel Korlátozottan hozzáférhető COVID 19 IN AVIATION - IMPACTS, COMPARATIVES AND SOLUTIONSGomes Pereira, Henrique; Husi, Géza; DE--Műszaki KarThe thesis "COVID-19 in Aviation: Impacts, Comparatives, and Solutions" explores the severe effects of the COVID-19 pandemic on aviation, particularly in Brazil and Europe. It highlights drastic declines in passenger traffic and financial losses. The study examines technological advancements like HEPA filtration and UV disinfection systems used to enhance safety. It contrasts the responses of Brazil and Europe, noting Europe's support measures and Brazil's growth potential in the low-cost airline sector. The thesis emphasizes the industry's resilience and the importance of innovative solutions for future crisis management.Tétel Korlátozottan hozzáférhető From the First to the Future The Technical Development and Future Directions of Global Navigation Satellite Systems Its impact on Civil Aviation NavigationFilipovic, Aleksandar; Géza, Husi; DE--Műszaki KarThe invention of Global Navigation Satellite System, GNSS, have entirely transformed the world. These systems include GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), Galileo and Beidou, have become key element in many of widely spread industries, including civil aviation navigation. During the past 4 decades, GNSS has undergone significant technical development, starting from its initial introduction in the 1970s to the current significantly upgraded systems that are being used today. With exponentially improving GNS systems, it has become increasingly important to understand its process of development and its impact on civil aviation navigation. The objective of this thesis work is to provide an overview of general operating principle of GNSS; the first GNSS rated for use during IMC for air operations ; overview and comparison of current GNSS systems and finally future state-of-art GNSS. Additionally, this thesis aims to explore the impact of GNSS on civil aviation navigation, including its challenges, benefits and potential disadvantages and risks.Tétel Korlátozottan hozzáférhető Dynamics of Subsonic Airflow and Integration of a Home Simulator SetupUygun, Alim; Erdei, Timothy István; DE--Műszaki KarI have written basics of wings in my thesis as literature review and I also searched and added simulation side of pilot training and my HeadTrack which I built it in my home with my equipments and my own budget.Tétel Korlátozottan hozzáférhető The Rise of Hybrid Aircraft in Sustainable AviationAfify, Karim; Menyhárt, József; DE--Műszaki KarHybrid aircraft represent a significant innovation in aviation by combining conventional gas turbine engines with electric or hydrogen-based propulsion systems. These aircraft offer the potential to transform the aviation sector, significantly reducing environmental impact by lowering greenhouse gas emissions and noise pollution. Hybrid propulsion systems improve fuel efficiency and operational flexibility, making air travel more sustainable. The electric motors in hybrid aircraft produce no emissions during operation, while hydrogen-powered systems emit only water vapor, thus reducing the carbon footprint of aviation. Additionally, the quieter electric propulsion systems help mitigate noise pollution near airports and flight paths, benefiting surrounding communities. Energy efficiency is enhanced through the recovery and reuse of energy during descent and braking. However, the development of hybrid aircraft faces challenges, including the need for extensive research and development, as well as adjustments to infrastructure, regulations, and operational protocols. Despite these hurdles, hybrid aircraft offer a promising path toward greener aviation and reduced dependency on nonrenewable energy sources.Tétel Korlátozottan hozzáférhető The effect of multicultural and monocultural environments on Crew Resource Management education deliveryKlyshpayeva, Dana; Husi, Géza; DE--Műszaki KarThe thesis explores the impact of multicultural and monocultural environments on Crew Resource Management (CRM) education delivery. It traces the historical development of CRM, emphasizing the importance of non-technical skills in aviation. Through surveys and interviews with students from different cultural backgrounds, the research reveals that multicultural environments enhance communication, English fluency, and adaptability, while monocultural settings improve teamwork and conflict resolution. However, each environment presents specific challenges, such as social toxicity in monocultural settings and initial adaptation difficulties in multicultural ones. The findings suggest that CRM training programs need to be tailored to address these differences to optimize effectiveness and improve aviation safety. The study offers actionable recommendations for enhancing CRM education.Tétel Korlátozottan hozzáférhető An overview of PW150A engine, its design, and performanceMomes, Erick Japhet; Kostyák, Ferenc; DE--Műszaki KarThis thesis aimed at describing the operational details of a turboprop engine, focusing on the PW150A. Different sections of the engine design have been illustrated with their key components. The engine performance has been studied and its calculated value presented, some of the data are assumed due to their sensitive nature that they are kept confidential by the manufacturer. The possible upgrades will be focusing on improving the material used in the design and also lowering emission.Tétel Korlátozottan hozzáférhető Beyond the skies: The historic evolution of jet enginesNassar, Seif; Géza, Husi; DE--Műszaki KarIn my thesis, the beginning of the jet engine and the pioneer inventors are discussed. the contrebution of Hans Von Ohain and Sir Frank Whittle, and their efforts were illustrated briefly with their impact on the industry. The pre-jet era was described when reciprocating engines were prevalent on aircraft designs. Early jet designs such as Turbojets and pulse jets were explained, and the impact on fuel economy presented by further developments giving birth to Turbofan engines was emphasized. Supersonic propulsion jets were explained, such as Ramjets and Scramjets, and a comparison between them was made. A scientific thrust calculation of an Ideal Ramjet engine is presented with a calculation sample. Airlines future expectations from engine manufacturers was discussed with three examples of the most advanced engines in the making or already in service.Tétel Korlátozottan hozzáférhető Human performance and safety in highly automated aviation systemsGoes Barreto, Lua; Menyhárt, József; DE--Műszaki KarThe primary aim of this research is to examine the evolution of technology and its consequential impact on safety in aviation operations throughout the years. Additionally, the study explores the intersection of human performance safety issues with the adoption of highly automated systems, as well as how individuals adapt to and manage the varying levels of automation in flight operations. Furthermore, it investigates the strategies and approaches employed by the aviation industry to address the challenges arising from technological advancements.Tétel Korlátozottan hozzáférhető Aircraft MaintenanceAl Masoud, Hamza; Menyhárt , József; DE--Műszaki KarThe thesis looks at key areas of aircraft maintenance and engineering organizations, emphasizing the importance of Total Productive Maintenance (TPM) in aviation. It dives into ideas for improving maintenance operations to increase aircraft availability and dependability. The research focuses on the relevance of landing gear within this paradigm, recognizing their important role in aircraft safety and functionality. By using TPM concepts, the study hopes to improve overall efficiency, minimize downtime, and extend the Mean Time Between Failures (MTBF). The thesis conducts a thorough investigation of the dynamic linkages between engineering organizations, TPM implementation, MTBF extension, and the critical function of landing gears in maintaining aircraft operational integrity. This research aims to give significant insights into the complexities of airline maintenance management.Tétel Korlátozottan hozzáférhető Environmental and sustainable aspects of aviation: emission of pollutants and particles, sustainable aviation fuel and electromobilityBaigalmaa, Baljingarma; Bellér, Gábor; DE--Műszaki KarAircraft operations contribute to climate through a series of complex processes, including the emission of greenhouse gas (GHG), particulate matter, and contrail formation. Global aviation is responsible for approximately 2.4 percent of annual anthropogenic carbon dioxide emissions and has contributed 4 percent to global warming to date. In 2015, the Paris Agreement was established with the long-term ambition of limiting the temperature rise to 2 Celsius degrees this century. In response, the aviation sector has begun making the shift toward more sustainable practices to reach carbon net zero by 2050. Among various measures and mitigation strategies, sustainable aviation fuel and electrification of aircrafts have become focus areas. However, some of the emissions and sustainable implications of these solutions are overlooked by the industry. The present work provides brief reviews on them.Tétel Korlátozottan hozzáférhető Sustainable energy in aviation. Is a natural friendly airplane – a dream or opportunity?Kostiuchenko, Oleksandr; Husi, Géza; DE--Műszaki KarThis thesis focuses on sustainable aviation fuel (SAF), exploring its development and its potential to replace conventional aviation fuel. The review highlights the importance of understanding the effectiveness of these processes to address the environmental challenges associated with conventional aviation fuel, which is a major source of carbon emissions and climate change. The International Civil Aviation Organization (ICAO) has been recognized for its efforts to combat climate change through initiatives such as CORSIA, promoting the use of SAF and carbon offset mechanisms. The review also highlights the importance of ASTM D7566 in setting standards for SAF production and quality, ensuring compatibility with existing aircraft and infrastructure. Ultimately, the study highlights SAF's role in reducing the aviation sector's carbon footprint and contributing to global environmental goals.Tétel Korlátozottan hozzáférhető Safety Management SystemFreiwan, Saifeddin; József, Menyhárt; DE--Műszaki KarThe thesis explores the crucial role of Safety Management Systems (SMS) in aviation safety, specifically examining failure modes in aircraft landing gear. SMS relies on pillars like a comprehensive safety policy, risk management, assurance, and promotion to establish a safety-oriented culture in the aviation industries. Proactive identification, assessment, and mitigation of hazards are central to SMS, fostering a safety-first culture at all levels of aviation operations. Failure mode and effect analysis (FMEA) within SMS provides a systematic approach to evaluate potential failure points in complex systems, enhancing the safety and reliability of critical aviation components. The International Civil Aviation Organization (ICAO) recognizes the importance of SMS in aviation safety, as outlined in Annex 19. This annex stresses a systematic and proactive approach to managing safety risks across all aviation sectorsTétel Korlátozottan hozzáférhető Enhancing Sustainability in AviationShedeed, Mohamed; József, Menyhárt; DE--Műszaki KarThe thesis explores sustainable aviation's pursuit to reduce carbon emissions, focusing on technology, air traffic management, and socio-economic aspects. It questions the inherent sustainability of aviation, comparing it with other transportation modes. Solutions for aviation sustainability encompass airport infrastructure improvements, sustainable ground vehicles, and innovative use of aircraft airframes for energy generation. Initiatives to raise passenger awareness and facilities promoting sustainability are highlighted, addressing time wastage issues associated with air travel. The thesis concludes by discussing sustainable aviation fuel options, emphasizing the potential for decarbonization and increased efficiency in reducing greenhouse gas emissions.Tétel Korlátozottan hozzáférhető Evaluating the development of the Airbus A320 aeroplaneMajtényi, Boldizsár; Husi, Géza; DE--Műszaki KarThe Airbus A320 program is one of the most successful commercial aircraft programs in the history of aviation. This thesis offers a comprehensive examination of the program. Trough the history and context, with a particular focus on the significant turning points in its evolution is also discussed in this study. The fly-by-wire technology, composites, and sophisticated aerodynamics are only some of the breakthroughs and technologies that are investigated in this research. In the thesis, the difficulties in engineering that arose throughout the production of the airplane are analysed, as are the strategies that were utilized to find answers to those difficulties. Further discussion analyses the topics such as the utilization of modern materials and its impact on the aviation industry, including its economic benefits. In conclusion, the thesis offers an assessment of both the present standing of the A320 program and its potential in the years to come. This thesis, in its whole, makes a contribution to a deeper understanding of the A320 program and the impact it has had on the aviation industry.