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Wyszukujesz frazę "Pashechko, Mykhaylo" wg kryterium: Autor

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    Wyświetlanie 1-7 z 7
    Tytuł:
    Gradient composite coatings for working surfaces of braking devices
    Autorzy:
    Pashechko, Mykhaylo
    Kindrachuk, Myroslav
    Humeniuk, Ihor
    Berezhanskyi, Taras
    Powiązania:
    https://bibliotekanauki.pl/articles/102670.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    coating
    eutectic
    plasma
    composite
    friction
    surface
    powłoka
    osocze
    kompozyt
    tarcie
    powierzchnia
    Opis:
    In this paper a study to develop a composite wear-resistant coatings for application to the working surface of linings of brake devices, which is based on a rule of a positive gradient of mechanical properties was carried out. These devices and so coatings work in conditions of rapid rise of temperature. Thermal properties of matrix and inclusions should not differ a lot. Otherwise this will cause internal cracking and deterioration of coating. With this purpose we did the analyses of thermal properties of matrix and carbide particles of coating and concluded thet a material with balanced composition based on thermal properties will have the best wear resistance It was created and tested eutectic composites based on alloy steel 12X18H9T based on thermal characteristics of all components. Wear tests indicated the best wear resistance of coating with composition: steel 12X18H9T (matrix) – 75%; fillers TiB2 – 10%, VC – 15%.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 2; 1-5
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Linkage Mechanisms with Internal Driving Link
    Autorzy:
    Pashechko, Mykhaylo
    Pasika, Viacheslav
    Hembara, Nataliya
    Kharzhevskyi, Viacheslav
    Powiązania:
    https://bibliotekanauki.pl/articles/102273.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    non-Assur structural group
    internal driving link
    excavators
    wheel cranes
    hydraulic drive
    grupa konstrukcyjna inna niż Assur
    wewnętrzne ogniwo napędowe
    koparki
    żurawie kołowe
    napęd hydrauliczny
    Opis:
    The linkage mechanisms with internal driving link that are used in many different machines are considered in the paper. The mechanism contains hydraulic cylinder that is hinged to the rack, a rocker arm that is pivotally attached to the driving rod and to the rack. The law of motion of a rod in a hydraulic cylinder was synthesized. The positions, angular velocities and accelerations of the hydraulic cylinder and the rocker arm are analytically determined by the methods of engineering mechanics and the theory of mechanisms and machines. Thus, brief analytical dependencies are obtained. It is shown that the angular accelerations of the hydraulic cylinder and the rocker arm are qualitatively similar to the relative acceleration of the rod. The results of the work can be used in the motion research of hydraulically driven excavator buckets, other lifting and loading, road building machines, in the actuating mechanisms of industrial robots.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 191-200
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of Contact Pressures in Cylindrical Metal-Polymer Sliding Guides
    Autorzy:
    Chernets, Myron
    Pashechko, Mykhaylo
    Kornienko, Anatolii
    Ishchenko, Anatoly
    Powiązania:
    https://bibliotekanauki.pl/articles/2123281.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    cylindrical metal-polymer guides
    calculation method
    maximum contact pressures
    contact angles
    Opis:
    Guides (linear plain bearings) of reciprocating motion are widely used in many areas of human activity. However, at present there are no reasonable methods for their calculation, in particular metal-polymer guides. The author's method of contact strength calculation of cylindrical metal-polymer sliding guides is presented in the article. The effect of load, bushing diameter and radial clearance on the maximum contact pressures and their distribution in the guide was studied on the example of epoxy-based polymer composite material Moglice of the German company DIAMANT Metallplastic GmbH, which is used to restore tribotechnical sliding systems elements. Quantitative and qualitative regularities of dependence of contact pressures on the accepted factors of influence are established: at loading increase four times the maximum contact pressures and contact angles will increase twice irrespective of change of sizes of a radial clearance and diameter of a base; increasing the base diameter leads to a directly proportional decrease in maximum contact pressures; doubling the radial clearance leads to a -fold increase in pressure, regardless of changes in the magnitude of the load and the diameter of the base. Regularities of change of contact parameters from the specified factors are given graphically.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 3; 30--33
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Features of Formation Stress State of Amorphized Detonation Coatings of the Zr-Al-B Systems
    Autorzy:
    Pashechko, Mykhaylo
    Kharchenko, Olena
    Shchepetov, Vitaliy
    Lenik, Klaudiusz
    Gladkiy, Yaroslav
    Powiązania:
    https://bibliotekanauki.pl/articles/102275.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    amorphous coatings
    residual stresses
    annealing temperature
    wear resistance
    detonation spraying
    powłoki amorficzne
    naprężenia szczątkowe
    temperatura wyżarzania
    odporność na zużycie
    natrysk detonacyjny
    Opis:
    The results of experimental studies on the dependence of the thickness of amorphous-crystalline Zr-Al-B coatings on the value and level of distribution of type 1residual stresses were presented. It was demonstrated that residual compressive stresses arise in the surface layers of coatings, which in absolute value are not significant for its integrity and quality. It was established that the amorphous-crystalline composition, under the conditions of minimizing residual stresses and the optimal combination of the volume fraction of components, the structure and morphology of their components, has the best surface strength and wear resistance under friction compared to tungsten carbide and iron coatings
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 2; 46-50
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Synthesis of Dwell Mechanisms on the Basis of Straight-Line Linkages with Fivefold Interpolation Nodes
    Autorzy:
    Kharzhevskyi, Viacheslav
    Pashechko, Mykhaylo
    Tatsenko, Oleksandr
    Marchenko, Maksym
    Nosko, Pavlo
    Powiązania:
    https://bibliotekanauki.pl/articles/2024214.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    straight-line linkages
    kinematic geometry
    dwell mechanisms
    fivefold interpolation nodes
    optimization synthesis
    połączenia prostoliniowe
    geometria kinematyczna
    węzły pięciokrotnej interpolacji
    synteza optymalizacyjna
    Opis:
    The paper deals with the problem of kinematic synthesis of dwell linkage mechanisms which are based on the four-bar linkage with a coupler point that traces a curve with a straight-line part. It enables to obtain a dwell of the output link of the mechanism, but the main goal is to find such parameters of the mechanisms that hold the required conditions of the designer: necessary dwell time, to satisfy the necessary cyclogram of the machine with taking into account the number of additional parameters. The main problem is to carry out the kinematic synthesis of the basic straight-line linkage that can be done by the kinematic geometry methods. In this paper it was shown that the fivefold interpolation nodes of the coupler curve with the tangent line can be successfully used to satisfy the necessary criteria. As a result of the carried out studies, the regions of existence of such mechanism parameters were determined enabling to carry out an optimization procedure using different criteria.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 1; 18-25
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the Effect of Young’s Modulus on the Contact Strength of Metal Polymer Plain Bearings
    Autorzy:
    Chernets, Myron
    Pashechko, Mykhaylo
    Kornienko, Anatolii
    Borc, Jarosław
    Zakhariia, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/2181749.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    metal-polymer plain bearings
    epoxy composites
    Moglice
    DK6 (PT)
    polyamide composites
    PA6+30%GF
    PA6+30%CF
    calculation method
    Young modulus
    Young module
    maximum contact pressures
    Opis:
    Using the author's method of research of hybrid (metal-polymer) plain bearings the calculation of their load carrying capacity (contact pressures) is carried out. Studies have been conducted for metal-polymer bearings with a bushing of two types of polymer composites: epoxy based antifriction composite materials DIAMANT Moglice (DIAMANT Metallplastic GmbH) and DK6 (PT) (fillers - graphite, MoS2, Zr). The elastic constants of composite materials, in particular the Young's modulus, have a noticeable effect on the contact pressures in metal-polymer bearings. The Young's modulus is significantly different in these composite materials. In accordance with this factor, the influence of load, bushing diameter and radial clearance on the maximum contact pressures was studied. Quantitative and qualitative regularities of maximum contact pressures from the accepted factors of influence: Young's modulus, loading, bushing diameter, radial clearance, type of bushing material are established. The obtained results are compared with the results obtained by known conventional calculating methods of contact pressures.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 2; 67--73
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fretting-Wear Mechanism of Textured Surfaces
    Autorzy:
    Pashechko, Mykhaylo
    Marchuk, Volodymyr
    Kindrachuk, Myroslav
    Tisov, Oleksandr
    Kornienko, Anatolii
    Dukhota, Oleksandr
    Powiązania:
    https://bibliotekanauki.pl/articles/101973.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    wear mechanism
    fretting
    wear products
    textured surface
    dimple
    mechanizm noszenia
    produkty noszenia
    teksturowane powierzchnie
    wgłębienie
    Opis:
    The wear mechanism of textured dimpled in conditions of lubricated fretting-wear is established, which, in contrast to others, takes into account possibility of removing deterioration products out of tribo-contact areas into dimples, preventing their action as abrasive material. Selection of optimal structural parameters of selectively dimpled areas allows to reduce duration of tribological couple running-in time. Depending on texture type, friction coefficient was reduced from 0.27 (for untreated furface) to 0.18, and wear loss – from 7.8 ×10–3g to 3.3 ×10–3g.
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 3; 186-191
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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