Práce a štúdie - Vydanie 15

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/1116

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Author: search.filters.author.Veľký, PatrikHas files: Yes

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    Letecké multispektrálne snímkovanie v poľnohospodárskom odvetví
    (University of Žilina, 2024) Šmidt, Marco; Veľký, Patrik
    This thesis focuses on the possibilities of applying airborne detection in many bands. Possibilities of multispectral detection in direction of use such as animal monitoring or scarecrow placement. In another direction of using thermal imaging for finding temperature anomalies or obtaining information from UAV sensors to improve economics in agriculture, light reflectance, electromagnetic spectrum, comparing satellites and UAVs in agriculture, and vegetation indices. The analysis of the studies was based on simulations and calculations followed by laboratory tests and external measurements. Using certain sensors operating in the corresponding regions of the frequency spectrum, the detection ranges of the drones were used to find the outputs derived from the calculated and simulated values, where a comparison of the studies followed.
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    Technicko-prevádzkové charakteristiky pre rôzne aplikácie UAV
    (University of Žilina, 2024) Valetskyi, Maksym; Veľký, Patrik
    The goal of this bachelor's thesis is to create a system for analyzing technical and operational characteristics for various UAV applications. The work consists of 4 parts: the first part describes the current methods of qualification and separation of drones according to the above mentioned parameters, the second part analyzes in detail five different ways of using drones, the third part of the part selects the most important technical and operational ones based on the data from the previous part parameters and a table is created. In the last practical part, with the help of logical analysis, cause-and-effect relationships, methods of assumptions and results of the research, the relationships or so-called correlations entered in the table are investigated between the values listed in the table. This model helps to optimize the operation of the drone, save money on the purchase, maintenance and increase the safety of its operation.
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    Analýza nekonvenčných aerodynamických konfigurácií lietadiel
    (University of Žilina, 2024) Šlachtič, Emil; Veľký, Patrik
    This article deals with the research and analysis of unconventional aerodynamic configurations of aircraft, developed in the aerospace industry. Primary CFD simulations of the respective models were used for the purpose of research and analysing the configurations, as well as analysis of the airflow around the 3D models in the wind tunnel of Air Transport Department. The aim was to find out why these configurations are not being used, or why they should be used in the aviation industry nowadays. The analysis was carried out mainly from an aerodynamic point of view. The different models were chosen based mainly on IATA’s forecast of trends in air transport. From the analyses, it was found that certain models are more efficient than their conventional counterparts, mainly due to the reduction in induced drag. However, these configurations are also much more sensitive to flutter due to the high aspect ratio, which poses a challenge especially from a structural point of view. Ti can therefore be assumed that the reason for not using these configurations represent a significant reduction in operating costs, they are unprofitable for operators. In contrast, BWB configurations appear very promising in terms of both efficiency and fuel savings, and it is therefore assumed that these models may enter service in 2030.