
Aleksei MakarovVolgograd State Technical University · Automation of Production Process
Aleksei Makarov
Doctor of Engineering
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44
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Introduction
Publications
Publications (44)
To mathematically describe the principle of operation of a device for high-precision flow control of liquid components, several processes occurring with a drop of liquid were considered, as well as the properties of the studied liquids themselves. An analytical calculation of the main parameters of the droplet formation process for various types of...
The design of a vacuum gripper for manipulating air-permeable soft materials has been developed and investigated. A description of the shape and structure of a vacuum suction cup capable of capturing air-permeable bodies is presented. Mathematical and computer simulation of the capture was carried out.
A general-purpose automatically controlled weighing batcher has been developed, which refers to the field of packaging equipment, and it is intended to weigh and batch food and non-food granular products. The existing designs have been studied, and a patent search for similar inventions has been carried out. A kinematic diagram of the mechanism has...
The article provides a theoretical evaluation of contact stiffness for flat rough surfaces of machine tool slide-ways with the help of a Green's function. The research uses the profile records of real contact surfaces to make a field of conditional intrusions of bodies into each other. The author proposes a method to calculate elastic contact displ...
The article considers the main LNG production projects in Russia, taking into account their capacities, the largest regasification terminals in Europe, as well as the ratio of the growth of demand and supply for LNG in the world. A comparative analysis of the installed capacity at the LNG production facilities and its impact on the increase in prof...
The article presents a pneumatic and functional diagram of an automated medical and health-improving device (LOW), the structure of the matrix of pneumatic chambers along the length and width of the LOW and a diagram of the distribution of the human body load on the LOW, depending on the ratio of the load on the surface, are developed.
The purpose of the research was to develop a design of a multi-section climate chamber, to justify the structure of the control system and simulate the heat balance with the use of the device proposed. To ensure the declared capability of the climate chamber, a structural diagram of the control system was developed, which takes into account the fol...
The aim of the studies is obtaining optimal regime parameters of the process of decontamination of plants’ explants by investigating integral action of sterilizing agent and by modifying nutrient medium. The studies of integral influence of technological factors, which have an impact on the process of explants’ sterilization and output of viable pl...
One of the most important issues of maintainability of engineering products is an experimental evaluation of quantitative maintainability indices. It is necessary to plan maintenance and repair tests of products to obtain estimates. The analytical dependencies to determine amount of check and determinative tests and value of specified maintenance t...
The authors deal with the task of technological maintenance of operability and reliability of packaging equipment at life cycle stages, including its designing, manufacturing and operation. To improve the wear resistance of the most loaded mobile nodes of the lever-hinged gripping device of a packaging machine, a new composite material with upgrade...
A research of the process of vacuuming on air-permeable surfaces is carried out. A mathematical model is presented for calculating the parameters of the gas filtration process through porous surfaces during their vacuumation. This model allows you to calculate the parameters of vacuum systems for gripping devices necessary for reliable capture of b...
The article represents the materials on the stability evaluation of the technical processes for machine-building products at the stage of serial production. Various deviations from the standard process documentation, when serial products are produced, have been considered. The main reasons and factors, which result in deviations in the parameters s...
A general-service weighting batcher with automatic control, which is related to the field of packaging equipment and is intended for weighing and dosing of food or non-food bulk production, has been developed. The existing constructions have been studied and patent search of analogues has been carried out. The kinematic scheme of the mechanism has...
The aim of this work is to develop the automated system of organic waste processing. The existing devices have been analyzed and their disadvantages have been revealed with the aim to create more perfect system. The construction of robot system of organic waste processing has been developed. A mathematical model of physical processes inside a biore...
A computer model of a fragment of an automated dynamic reconfigurable panel is being developed and researched. The stresses, displacements, and deformations arising at various loads are investigated. The results of computer research allow you to choose a rational shape and configuration of the panel, which leads to an increase in its strength chara...
The development and research of a device for automating the manipulation of big-bag in the process of packaging. A description of the design and operation of the device, as well as the results of computer modeling of this operation was presented.
Experimental development and production of a robotic arm prototype with five axis of motion is being carried out for further use as a laboratory bench. The description of the experimental prototype, the control principle, and the analysis of the results are given.
An automatic control system for an automated compact cogeneration plant has been developed, in which the secondary energy generated, which produced when electricity is obtained, is used to generate thermal energy. Generated electricity is redistributed using an adaptive control system to additional heating of water if it is not necessary for extern...
This paper presents studies of vacuum grippers when working with breathable materials. Such devices can be used in packaging equipment in the food, chemical industry, construction and agriculture. It will create conditions for the comprehensive automation of the packaging process. Consequently, productivity and quality of packaging will increase, w...
The work represents the results of modeling and studying the interaction of the mechatronic unit segments in an aircraft wing when an external impact is applied. The basis of the model of an adaptable wing main frame structure proposed is a mechatronic unit, which is designed to ensure the preset angle between the elements in the adaptable wing str...
Materials about try-out of technological processes of machine-building products have been represented in the article. Theoretical and practical issues about the development of mathematical models and techniques of estimation of reliability of technological processes have been stated. The first model of technological process mastering has been consi...
The article is devoted to the development of theory of tribotechnical interaction of a kinematic pair “shaft-sleeve” of the friction bearing of a gas-compressor unit (GCU) on the basis of molecular physics of boundary friction. The aim of the research is achievement and securing of a high level of reliability and safety during the lifecycle of high...
The quality control of a flexible container (FC) gripped and held by a gripping device during the entire cycle of packaging is an important task in the packaging process of bulk materials in a soft package. Noncontact optical methods of control have been developed and researched for the diagnostics of the automatic manipulating process of a flexibl...
The paper provides an overview of ways to increase the strength of polymer products obtained by fused filament fabrication (FFF) technology. An algorithm for calculating the spiral toolpaths for the material deposition using multi-axis printing is proposed. The design of the five-axis device for spiral-shaped deposition of the material is shown. Th...
We develop a device for high-precision measurements and regulation of low flow rates of special liquids with different properties. The application of this device enables one to automate the process of high-precision mixing and dosing of various liquids with a possibility of control of the process of dosing in real time.
In an effort to increase efficiency of the process of handling of an air-penetrating flexible container during its’ filling with free-flowing materials a devise has been designed for automatic gripping, opening, holding and sealing of flexible container, containing vacuum gripping devise, pneumatic drive for its’ transfer and a control system based...
To determine the stress–strain state of housings and instruments, a module based on a tensometric sensor is developed and used in experiments. The experimental results are compared with the values obtained in a standard experiment on laboratory equipment. The applicability and adaptability of the new module are confirmed.
On the basis of similarity theory and dimensional analysis, a method is proposed for analysis of the cutting of new structural materials. The new method requires fewer tests and provides more reliable information regarding the cutting parameters.
Automated filling of flexible containers with free-flowing products is considered.
A sensor for precise measurements of low flow rates of specialized liquids, including medical liquids, is developed. Through the use of the sensor, it is possible to automate the process of precision dosing of liquids in real time.
An algorithm and a program have been created for efficiently batching the slab charge of a continuous heating furnace. The charge is composed with allowance for each slab’s heating group.