Univerzitná knižnica - Vedecké odborné časopisy

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    Posúdenie stability lesného kolesového traktora vybaveného hydraulickou rukou
    (University of Žilina, 2023) Dižo, Ján; Blatnický, Miroslav; Ishchuk, Vadym; Lovska, Alyona; Fidrik, Filip
    Wheeled forests tractors are inseparable part of a forest economy. Wheeled forests tractors serve for logging of logs in forests. Current wheeled forests tractors are usually equipped with hydraulic arms, which allow to expand the utility of such tractors. A tractor with a hydraulic arm can handle with wood logs without a need additional forest machine, which helps to reduce costs. On the other hand, it is necessary to analyse tractors abilities, which has such an additional equipment. This article is focused on assessment of stability of a heeled forest tractor, which is equipped by such a hydraulic arm. As the hydraulic arm changes the centre of gravity of an entire tractor, mainly with the load, safe operation of the tractor needs to know limit conditions of stability under the maximal load and in the given slope inclination.
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    Manévrovateľnosť a stabilita pohybu kĺbového autobusu, systém HST
    (University of Žilina, 2023) Sakhno, Volodymyr; Gerlici, Juraj; Kravchenko, Oleksandr; Poljakov, Viktor; Chovcha, Iryna; Dižo, Ján
    The mathematical model of a hinged-rear bus with a system of turning a hook-and-loop section for a dynamic way of turning is broken down. For the developed model, indicators of manoeuvrability and stability of the bus were appointed. The input of the design parameters of the bus and the trailer, the transfer ratio of the control drive and the magnitude of the galvanic moment to the indicators of the manoeuvrability of the bus are analysed. On the basis of the results, in the analysis of the rational values of the gear ratios, which ensure the proximity of the trajectories of the characteristic points of the bus and the trailer, the value of the gear ratio of 0.85 was selected, which ensures the minimum value of the RMK.
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    Orgány riaditeľnosti a stability letúnov, 2. časť
    (University of Žilina, 2023) Solčanský, Sebastián; Dižo, Ján; Blatnický, Miroslav; Ishchuk, Vadym
    This paper deals with flight control and stability surfaces, which is a comprehensive overview of control and stability surfaces of an aeroplane, especially three main control surfaces elevator, ailerons and rudder. These are analysed from the perspective of functions, locations, divisions and aeromechanics. Part of the paper is dedicated to the definition of aircraft, the division of aircraft and the structure of the aeroplane.