Práce a štúdie - Vydanie 08

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/124

Katedra leteckej dopravy, Fakulta prevádzky a ekonomiky dopravy a spojov, Žilinská univerzita v Žiline

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20204

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Author: search.filters.author.Pecho, Pavol

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    NÁVRH A KONŠTRUKCIA MODELU DEMONŠTRAČNÉHO AERODYNAMICKÉHO TUNELA
    (Žilinská univerzita v Žiline, 2020) Hrúz, Michal; Pecho, Pavol
    The paper is focused on the creation of a fully functional demonstrational model of a subsonic wind tunnel with integrated accessories, using low air velocities to perform test analyses. The analyses take place in the form of visual demonstrations of the air flow behavior around various solids and also in the form of computational tasks. The paper describes the use of theoretical knowledge and laws in the field of aerodynamics and their subsequent connection to the design and construction of the model, while its dimensions must meet the strict requirements for subsequent placement. The demonstrational model provides the necessary equipment for research in the aerospace and, in part, automotive industries. It provides conditions for student research and fully covers the teaching processes of Air Transport Department.
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    VPLYV NEHOMOGÉNNOSTI POVRCHU VPD 13/31 NA BRZDNÉ ÚČINKY LIETADLA NA LETISKU V BRATISLAVE
    (Žilinská univerzita v Žiline, 2020) Krnáč, Dominik; Pecho, Pavol
    The paper deals with the problem of braking effects. It is essential to thoroughly analyze the current state and cause of the problem. In this case it is a partially reconstructed RWY 13/31, which during the measurement of braking effects shows significantly lower braking coefficients in the reconstructed part and in general part of the new concrete appears to be inhomogeneous. Optical observations also show clear differences, for example during various meteorological phenomena. Currently, the critical part of the track is monitored and published by NOTAM as "slippery when wet". The current situation is not optimal at all, as during the winter period the critical part of the RWY may show significantly lower braking performance and thus be dangerous to flight operations. Furthermore, RWY analysis in terms of structure is included. In the experimental part, there are measured the braking effects on the track and are compared with the effects measured before CB plates replacement. At the end there is proposed a measure to improve the properties and its technical evaluation.
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    VYUŽITIE AUTONÓMNYCH SYSTÉMOV UAV PRE PODMIENKY ZÁCHRANNÝCH ZLOŽIEK
    (Žilinská univerzita v Žiline, 2020) Leitner, Martin; Pecho, Pavol
    The use of drones is slowly becoming an integral part of our lives. They are used every day and new ways of use are constantly emerging in various areas. One of the easiest way is to use them for entertainment, but there are also a large number of professional users. Their largest users include the military, but they are also used for aerial monitoring, mapping and various other services. As in civil aviation, as well as for UAV users, it is necessary to correct the current legislation, which is also included in the work. In the paper we will investigate the use of UAVs by armed force and rescue units. In this area, they have the opportunity to make full use of their main advantage, and that is how to get to places where access is difficult. In addition, their use does not require a pilot on board and does not endanger his life, as is the case with helicopters. In this work, we will design a flight path for a drone to cover the area as effectively as possible and thus help the rescue services to be more efficient in the search for missing persons. The flight path design will be created in the Dronedeploy program and will be planned for three types of terrain at different initial settings to allow comparison of these flights. Tables and figures are added to each flight to help the reader better understand the flight suggestions.
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    OPTIMALIZÁCIA VYHĽADÁVANIA OSÔB ZA POMOCI TERMOVÍZNEHO SKENU PROSTRIEDKOV UAV
    (Žilinská univerzita v Žiline, 2020) Nosál, Ľubomír; Pecho, Pavol
    The main aim of the paper is to optimalize person search by using UAV with infrared camera. Author’s goal is to confirm experiment which he came up with and to also confirm theoretical knowledge about the discussed matter. The objective of the paper is to look at the problem from as many views as possible. Every point of view has to be analyzed and optimal solution for the problem should be found. In order to use technical devices one has to understand how the machines work and understand the basic pricinples which the machines are based on. Working principles of infrared cameras are interpreted also the radiation which every object emits and which the camera scans is described. In the master paper are analyzed study cases from real search and rescue missions. The solutions of these study cases are proposed by using UAV with infrared camera. The most important part of the paper is the experimenthal phase. The optimal angle which the camera is mounted under the UAV is solved and discussed. Also the factors which affect the camera during the flight are evaluated. At the end of the paper one can find concept how to fight COVID-19 by using knowledge acquired from the paper.