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Документ Methods of correcting errors during the operation of the drive of valves(2016) Volodin, Sergiy; Mironchuk, Valeriy; Kryvoplias-Volodina, LiudmylaTo ensure reliable operation of the valves it is necessary to lay the conditions for management at the stage of selecting and designing. Control system electric pneumatic (EPC) ensure smooth and reliable operation of mechanisms in many areas of technology today. Functional capabilities of modern EPP are determined by the characteristics of the applied management systems in many ways, as well as the parameters of the power part.Документ Architecture of hybrid mechatronic dosing and packing module of packaging machine based on qualitative analysis(2023) Gavva, Oleksandr M.; Kryvoplias-Volodina, Liudmyla; Marynin, Andriy; Tokarchuk, Serhii; Blazhenko, Serhii; Volodin, OleksandrA qualitative analysis of the process of packaging liquid products (non-carbonated drinking water) using the example of a hybrid mechatronic dosing and packaging module was performed. The computer model of the mechatronic module is described by the basic operators of the Simulink program, taking into account the differential equations for changing the technological parameters of liquid dosing and the accepted initial and boundary conditions of the process. The modes of operation of the hybrid mechatronic dosing and packaging module are programmed using the driver. The boundary conditions of the process of formation and extrusion of the dose of the product are taken into account. The control system of the module is arranged on the principle of feedback and a sharp change in pressure in the portion receiver (from excess, within 3 bars to rarefaction up to –850 mbar). The analysis of individual stages of the dosing process is described, followed by the elaboration of accepted assumptions. During the tests of the computer model of the hybrid mechatronic dosing and packaging module, the accuracy of repetitions of dose formation was determined within ±0.22 % and 0.9 % of the set value of the dose mass of 50…200 ml. An experimental bench was designed, which could provide an opportunity to check the results obtained from the computer model. The research results would allow using digital control and measuring equipment to check the accuracy of dosing of the product from 50 ml to 200 ml. In the course of computer simulation, the effects of the given parameters of the dosing process on the accuracy of the product dose formation were determined, as well as the laws of the necessary distribution of compressed air pressure were formed to maintain the given productivity. The research results could make it possible to improve the designs of liquid product dosing modules and to determine the input parameters for field studies.Документ The research mechanical dynamic of model of the asynchronous engine in systems of continuous transport(2016) Kryvoplias-Volodina, Liudmyla; Gavva, Oleksandr M.; Yakymchuk, NikolaiНаведенo способи вдосконалення систем асинхронного електроприводу з частотним керуванням, призначених для конвеєрів і механізмів переміщення вантажів, шляхом розробки і застосування нових схемних рішень і алгоритмів керування, що дають змогу здійснювати оптимальне енергоспоживання. Запропоновано віртуальну об'єктну модель, засновану на попередньо побудованій математичній моделі, і побудовано в VisSim. Модель призначена для використання в якості елемента системи автоматичного регулювання. Вона дозволяє моделювати ввімкнення, вимкнення і реверс асинхронного двигуна, а також скалярне безперервне управління частотою обертання вала в діапазоні від -50% до +20% номінальної частоти обертання вала. Бібл. 8, рис. 4, таблиця. Are considered ways of perfection of systems of the asynchronous electric drive with the frequency management, intended for conveyors and mechanisms of moving of cargoes, by development and application of new circuit decisions and algorithms of the management, making possible optimum энергопотребление. The virtual objective model based on preliminary constructed mathematical model and the Model constructed in software package VisSim is offered for use as an element of system of automatic control. It allows to model inclusion, shutdown and a reverser of the asynchronous engine, as well as scalar continuous management of frequency of rotation of a shaft in a range from a minus of 50 % up to plus of 20 % of nominal frequency of rotation of a shaft. References 7, figures 4, table.Документ Synthesis of precision dosing systems for liquid products based on electropneumatic complexes(2021) Gavva, Oleksandr M.; Kryvoplias-Volodina, Liudmyla; Blazhenko, Serhii; Tokarchuk, Serhii; Derenivska, AnastasiiaThis paper reports the construction of a mathe-matical model for the process of dosing liquid foods (non-carbonated drinking water). The model takes into consideration the differential equations of chang-es in the kinematic parameters of the liquid in a dos-ing device's channels and the corresponding accept-ed initial and boundary conditions of the process. The boundary conditions account for the influence of soft-ware-defined airlift dosing modes using the driver and the geometry of the product pipeline. The current's value measured in mA (with an accuracy of 0.001 mA) relative to the standard scale Imin is Imax=4...20 mA.Individual stages of the dosing process were ana-lytically described, followed by the analysis of sepa-rate stages and accepted assumptions.The accuracy achieved when testing the experi-mental sample of the dispenser, with the repetition of the dose displacement process, ranged between 0.35 % and 0.8 %. The reported results are related to the established dosage weight of 50 ml when changing the initial level of liquid in the tank of the dosing feeder by 10 mm.An experimental bench has been proposed for investigating the functional mechatronic dosing mod-ule under the software-defined modes to form and discharge a dose of the product. The bench operates based on proportional feedback elements (4–20 mA) for step and sinusoidal pressure control laws in the dosing device.The control model with working dosing modes has been substantiated. The control models built are based on proportional elements and feedback.During the physical and mathematical modeling, the influence of individual parameters on the accuracy of the product dose formation was determined; ways to ensure the necessary distribution of compressed air pressure, subject to the specified productivity of the dosing feeder, were defined. The study results make it possible to improve the operation of precision dosing systems for liquid products based on electro-pneumat-ic complexes.