Прегледај по Аутор "Kočović, Vladimir"

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    DETERMINATION OF THE PARASITIC FORCES THAT OCCUR AS A CONSEQUENCE OF THE MOVEMENT OF THE ROLLER OVER THE MINIATURE PROFILED GUIDE
    (University of Novi Sad, Faculty of Technical Sciences, 2019) Kočović, Vladimir; Kostić, Sonja; Vasiljević, Saša; Santoši, Željko; Košarac, Aleksandar; Kuzmanović, Siniša; Rackov, Milan
    In order to achieve a greater efficiency degree of electrical, mechanical or other assemblies that work by consuming any form of energy, the frictional force that occurs between all moving elements of the system should be minimized. Nowadays, a lot of standard sliding and rolling pairs have been developed, which provide linear movement. Since manufacturers of these elements do not prescribe coefficient of friction when moving movable rollers on a fixed rail, it is often necessary to know the resistance to motion of these elements due to the correct selection of the drive system, and therefore it is necessary to determine them. In this paper, the resistance to motion of roller through the miniature profile guide 15 mm in width and 10 mm in height was tested.
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    Loop-the-Loop as a Real Tribomechanical System Applicable in Engineering Education
    (Faculty of Engineering, University of Kragujevac, Serbia, 2021) Miljojkovic, Jasmina; Kočović, Vladimir; Košarac, Aleksandar; Šimunović, Katica
    Using a "loop-the-loop" system, the authors developed a double-track apparatus and based their experimental research on theoretical foundations related to the motion on an inclined plane laid by Leonhard Euler. The method enabled the quantification of very small "energy losses". The paper presents the results of experimental research and the analysis of the changes in friction force and other causes of energy dissipation. In engineering education, the method contributes to a deep understanding of the concept of energy transformation – the appearance of "energy losses" in real tribomechanical systems.
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    SOFTVERSKA PODRŠKA UREĐAJU ZA ISPITIVANJE GUBITAKA USLED TRENJA U NAVOJNIM SPOJEVIMA
    (University of Kragujevac, Faculty of Engineering, Society of Production Engineering, 2018) Miljojković, Jasmina; Erić, Milan; Košarac, Aleksandar; Kočović, Vladimir; Nedić, Bogdan; Mitrović, Slobodan
    U radu je opisan razvoj softverske podrške uređaju za ispitivanje gubitaka usled trenja u navojnim spojevima. Razvoju softverske podrške prethodila su razmatranja mogućih načina unapređenja unosa podataka i proračuna baziranih na rezultatima merenja, poznatim teorijskim zavisnostima i postavkama uređaja. Softver, koji je razvijen u Visual Basic for Applications (VBA) razvojnom okruženju, obezbedio je efikasan unos i obradu podataka.