Now showing items 39-58 of 881

    • Features of Controlling Electropneumatic Valves of Actuator to Control its Clutch with Acceleration Valve 

      Yaryta, O. А.; Mychalevych, M. G.; Leontiev, D. N.; Klymenko, V. I.; Bogomolov, V. A.; Gritsuk, I. V.; Novikova, Y. B. (БНТУ, 2018)
      The article deals with one of the ways to control an actuator of the automated clutch control system. The aim is to design control of the electropneumatic actuator, to control its coupling with the acceleration valve on the basis of experimental research as well as to provide rational parameters of the automated clutch control system for the robotic transmission. The feature of ...
      2018-02-09
    • Finite Element Method Analysis of Centreless-Lunette Turning of Heavy Shafts 

      Vasilevich, Yu. V.; Dounar, S. S. (БНТУ, 2017)
      Dynamics of heavy lathe tool ta be renovated has been simulated in the paper. Original turning scheme concerns finish-machining of large rotor shafts. High-positioned parts and a milling head may create dynamic problems. For this very reason FEM-simulation has been carried in static, modal and harmonic arrangements. A carrying system for shaft support consists of a bed, a support, ...
      2017-05-29
    • Forecasting the Risk of Bankruptcy in Poorly Formalized Processes 

      Gaibnazarova, Z. T.; Solieva, B. T.; Iminova, N. A. (БНТУ, 2024)
      There is a class of complex systems characterized by dynamism, multi-link structural elements, multi-stage, multi-linked chain of processes. Moreover, each of these processes occurs under conditions of stochastic and non-stochastic uncertainty in the initial information, internal and external environment, which predetermine the uncertainty of the nature of the development of the ...
      2024-02-06
    • Fuel Consumption of Wheeled Vehicle and Transportation Costs during Highway Construction/Reconstruction 

      Leontiev, D. N.; Ihnatenko, A. V.; Synkovska, O. V.; Ryzhikh, L. А.; Smirnova, N. V.; Aleksandrov, Yu. V.; Rudenko, N. V. (БНТУ, 2021)
      A method is proposed for determining the fuel consumption of a wheeled vehicle depending on its speed, road surface flatness and road slope in the longitudinal direction. The purpose of the research is to derive mathematical relationships for calculating the fuel consumption of vehicles, which is one of the transport cost factors during the construction/ reconstruction or overhaul ...
      2021-12-02
    • Heat-Resistant Foam Concrete on the Basis of Two-Component Binder 

      Leonovich, S. N.; Sviridov, D. V.; Belanovich, A. L.; Savenko, V. P.; Karpushenkov, S. A. (БНТУ, 2019)
      The composition of dry mix on the basis of two-component cementing agent (aluminous cement and clay of the “Kustikha” field), mineral additives (a metakaolin, the RSAM sulfoaluminate modifier, waste of basalt fiber), Ufapore foamer and the accelerating and plasticizing “Citrate-T” additive is developed. When mixing “Citrate-T” additive with water at Water/Solid = 0.45–0.70, the ...
      2019-04-16
    • How to Make the Charging Simple, Convenient and Efficient 

      Cheng, W.; Wang, Y. (БНТУ, 2020)
      With the large-scale application of electric vehicles (EV) in the world and also in China, the contradiction between the EV and charging stations has become more and more prominent. People always cannot easily find the charging stations or when they find them finally found they do not work. To connect the vehicle, charging station/pile and end-users for making the charging simple, ...
      2020-02-04
    • Imitating a Safe Human Driver Behaviour in Roundabouts Through Deep Learning 

      Cervera, A. S. J.; Alonso, F. J.; Garcia, F. S.; Alvarez, A. D. (БНТУ, 2020)
      Roundabouts provide safe and fast circulation as well as many environmental advantages, but drivers adopting unsafe behaviours while circulating through them may cause safety issues, provoking accidents. In this paper we propose a way of training an autonomous vehicle in order to behave in a human and safe way when entering a roundabout. By placing a number of cameras in our ...
      2020-02-04
    • Improving Properties of Tool Steels by Method of Dynamic Alloying 

      Kalinichenko, A. S.; Ovchinnikov, V. I.; Usherenko, S. M.; Yazdani-Cherati, Javad F. (БНТУ, 2019)
      The influence of high-speed particle fluxes on changes in the structure and properties of materials has been widely studied currently. The effect exerted by particles moving at very high speeds can have both negative (in spacecrafts) and positive character (dynamic processing of tool steels). Therefore a task for studying an effect of high-speed particle flows on structure change ...
      2019-10-21
    • Improving the Brake Control Effectiveness of Vehicles Equipped with a Pneumatic Brake Actuator 

      Bogomolov, V.; Klimenko, V.; Leontiev, D.; Ryzhyh, L.; Smyrnov, O.; Kholodov, M. (БНТУ, 2020)
      This paper proposes a way to determine a rational connection between a two-section or three-section brake valve and the main brake system circuits of a wheeled vehicle equipped with simplex or duo-duplex brake gears. The aim is to determine a rational option to connect main brake system circuits with a brake valve to guarantee the maximum effectiveness of an emergency brake system ...
      2020-02-04
    • Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking 

      Herasymenko, V.; Shpika, N.; Smyrnyi, M.; Khuruzha, D. (БНТУ, 2021)
      The effectiveness of the electric braking system largely depends on how the braking is carried out, whether the braking characteristics that it forms are acceptable for a given vehicle, how simple and reliable the technical solutions embedded in the system are, and where the braking energy is used. With electric braking, it is possible not only to extinguish the electrical energy ...
      2021-02-04
    • Increasing the Quality of Transient Processes in the Vehicle Transmission 

      Taratorkin, A.; Derzhankii, V.; Taratorkin, I. (БНТУ, 2019)
      The paper shows results of an experimental and theoretical study of dynamic processes in the vehicle transmission after kinematic alignment of elements during gearshifts. The purpose of the research is increasing the quality of transient processes in the vehicle transmission. Applying an analysis of experimental results obtained through looking into dynamics of a 3-ton vehicle ...
      2019-12-06
    • Influence of the Cut Axial Depth on Surface Roughness at High-Speed Milling of Thin-Walled Workpieces 

      Germashev, A. I.; Logominov, V. A.; Dyadya, S. I.; Kozlova, Y. B.; Krishtal, V. A. (БНТУ, 2021)
      The paper presents the results of research on the dynamics of end milling of thin-walled work-pieces having complex geometric shapes. Since the milling process with shallow depths of cut is characterized by high intermittent cutting, the proportion of regenerative vibrations decreases, and the effect of forced vibrations on the dynamics of the process, on the contrary, increases. ...
      2021-04-08
    • Innovative Urban Transport System – Autonomous and Locally Low-Emission 

      Choromanski, W.; Grabarek, I.; Kozłowski, M.; Czerepicki, A. (БНТУ, 2021)
      In recent years, intensive research on urban transport has been observed. The search is about finding such solutions that will enable, among others: increasing the importance of public transport, matching transport for the needs of people with reduced mobility, increasing capacity, reducing emissions, energy efficiency (technical and organizational dimension through the organization ...
      2021-06-08
    • Intellectual Mechatronic Systems with Remote Component Interaction: Structure and Functions 

      Gulay, А. V.; Zaytsev, V. М. (БНТУ, 2015)
      Проанализированы базовые требования, предъявляемые к сенсорным и управляющим трактам мехатронных систем с дистанционной организацией процессов контроля и управления объектами. Рациональным подходом является проектирование указанных систем как многоканальных технических комплексов, рассчитанных на параллельное или квазипараллельное силомоментное управление выходными механическими ...
      2015-08-14
    • Investigation of Upgraded Technology for Plasma Spraying of Bronze Powder Using the Combined Process with Hydrocarbon Additions 

      Devoino, O. G.; Gorbunov, A. V.; Chenchong, Wang; Volodko, A. S.; Polyakov, A. N.; Gorbunova, V. A.; Seniut, V. T.; Kovaleva, S. A.; Koval, V. A. (БНТУ, 2023)
      The object of the research is thermal spray process for the formation of metal coating from bronze powder in plasma-fuel variant, using direct current (DC) electric arc plasma torch, on steel samples. The aim of the work was to investigate and develop the technology for plasma-fuel spraying of functional coatings (for wear-resistant and antimicrobial applications) on machine-building ...
      2023-04-18
    • Knock Reduction Measures in the Gas Fuelled Internal Combustion Engine 

      Szwaja, S. (БНТУ, 2020)
      Studies on the influence of applying various technologies for combustion knock reduction have been presented in the paper. Among others, investigation concerning the following: overexpanded cycle, variable valve timing, internal and exhaust gas recirculation, leaning the combustible mixture and cooling the incylinder charge were of the interest. The research works were focused ...
      2020-08-04
    • Laser Research of the Fuel Atomization Process of Internal Combustion Engines 

      Stezycki, P.; Kowalski, M.; Jankowski, A.; Slawinski, Z. (БНТУ, 2020)
      The paper presents test methods (mechanical, electrical and optical) for the fuel spray research in combustion engines. Optical methods, imaging and non-imaging can be used in laboratory and engine tests. Imaging methods include flash photography and holography. Their use is limited to testing droplet dimensions larger than 5 μm. Imaging methods have an advantage over non-imaging ...
      2020-02-04
    • Mathematical Model of Energy Processes in Industrial Electric Screwdriver 

      Nieoczym, A.; Drozd, K.; Veselik, P. (БНТУ, 2019)
      An electric screwdriver has been designed to work in an automatic cycle on assembly lines. A characteristic feature of the screwdriver is the use of a low power motor in comparison with commonly used devices. The work for tightening a threaded joint takes place at the expense of kinetic energy in components of a drive system and the working screwdriver. It has been proved that ...
      2019-07-04
    • Modeling of Capillary Shrinkage and Cracking in Early-Age Concrete 

      Leonovich, S. N. (БНТУ, 2018)
      Scientific hypothesis on moistening shrinkage mechanism for cement stone and concrete has been assumed as a basis for the present paper. Physical ideas on a mechanism for cracks volume increment in a concrete model presented as two-level structure have been accepted as a theoretical basis for a calculation method of crack resistance during capillary shrinkage. These ideas are the ...
      2018-08-02
    • Multi-Layers Composite Plasma Coatings Based on Oxide Ceramics and M-Croll 

      Panteleenko, F. I.; Okovity, V. A.; Devоino, O. G.; Astashinsky, V. M.; Switala, F. (БНТУ, 2022)
      The paper considers the influence of the parameters of the plasma spraying process on the technological characteristics of multilayer coatings based on nickel-chromium, nickel-chromium-aluminum-yttrium materials, oxide ceramics, intended for operation at high temperature and additional dynamic loads. The design of plasma coatings during their application (with subsequent high-energy ...
      2022-04-06