Перегляд за Автор "Malakov, O."

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  • Ескіз недоступний
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    Test planning of serviceability of flexible production systems equipment considering planning and monitoring of agricultural equipment.
    (Вінниця: Вінницький національний аграрний університет, 2020) Veselovska,N.; Malakov, O.; Manzhos, Е.; Hnatyuk, O.
    The article discusses the main problems and features of test planning of serviceability of flexible production systems (FPS) equipment, taking into account all possible factors. The basic dependencies of repair and verification at variable operating modes have been monitored and possibl1e ranges of system existence depending on internal factors and changes in working time, environmental characteristics and factors affected the system have been derived. As the result of the analysis, mathematical modeling and determination of critical conditions of existence of the system have been carried out. The basic criteria and tolerances for the normal operation of FPS equipment have been determined. The calculated dependencies for the further improvement of the system and the parameters for the smooth operation of the equipment by means of a mathematical analysis have been found. Methods of test planning of operability of FPS equipment have been developed, the time frame of stopping various systems for the slightest l ss of production capacity, taking into account the duration of the diagnostic work of used equipment has been determined. The planning of inspections for a product that is in a state of readiness for action, possible only after replacement, is considered. These circumstances allow us to determine the optimal interval between inspections by the criterion of minimum expected costs, attributed to the average time of serviceability for the cycle in steady state. When planning inspections of a product that is in a state of static readiness for action, the possibility of making erroneous decisions during the inspection is taken into account. The products which start to act at occurrence of some emergency conditions which moments of occurrence are casual and have distribution W (t) are considered. It is determined that inspections and necessary repairs allow to increase readiness, if at the same time certain conditions concerning quantitative ratios of the sizes influencing it are fulfilled.
  • Ескіз недоступний
    Документ
    Математичне моделювання механізму вивішування косарки-плющилки причипної КПП-4.2.
    (Вінниця: Вінницький національний аграрний університет, 2019) Веселовська, Н. Р.; Малаков, О.І.; Бурлака, С.А.; Veselovska, N.; Malakov, O.; Burlaka, S.
    Maintaining the required cut height minimizes losses and ensures continuous shoe contact with the surface. Thus the excessive pressure of the shoe destroys the stubble and leads to its accelerated wear, and insufficient pressure is accompanied by increased losses and provokes the galloping of the header An analytical solution to the problem of modeling the mechanism of the KPP-4.2 hanging is an iterative execution of the analysis procedures based on the formed hypothesis, as well as the procedures of comparison and selection of options in the procedure of parametric synthesis. It is a choice of a combination of internal parameters of the flattening device, which, while satisfying the functional limitations, simultaneously stabilize the whole mechanism. A study and analysis of the hanging mechanism of a mower-conditioner trailed KPP-4.2 using methods of theoretical mechanics, differential and integral calculus, probability theory, mathematical modeling and computer software. A geometric model has been created for calculating and optimizing the operation of the hanging mechanism. The MVA KPP-4.2 output parameters were calculated for three different cut heights.