Vibrations in engineering and technology最新文献

{"title":"VERTICAL VIBRATING MOVEABLE DEVICE","authors":"Koruniak Petro, Sheremeta Roman, Shvets Oleksii, Berezovetskyi Serhii","doi":"10.37128/2306-8744-2022-3-4","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-3-4","url":null,"abstract":"Modern industry is characterized by a high level of automation of technological operations in the production of any product. Thus, in order to save production space, as well as to organize the transportation of objects under the ceiling of the workshop, suspended transportation robotic systems are used. With their help, workpieces are supplied to workplaces, and finished parts to assembly positions, as well as loading and transfer of materials and finished products. First of all, it concerns the electronic and radio-electronic industry.\u0000\u0000There are a number of transport devices where the cargo flow can move both horizontally, at an angle to the horizon, and vertically. Transportation in the vertical plane can be carried out thanks to a working element such as a belt, rope, chain, combined element, auger, pipe, or a medium (air, water) or a phenomenon (electromagnetic field, vibrations).\u0000\u0000On the basis of the analysis of their designs and the patent search, it is possible to conclude that the working process of moving goods in the vertical plane, in connection with its wide variety of choosing a design solution, is the subject of scientific research, and the orientation of designers to the modernization of these means of movement, primarily with the aim increasing the efficiency of use, the energy efficiency coefficient and reducing the material consumption of equipment always remains an urgent task of mechanical engineering. The choice of such means depends, first of all, on its type, technological purpose, technical and economic indicators of production. All this indicates the need to deal with this issue, because even a slight improvement of these indicators gives a significant economic effect as a whole.\u0000\u0000In this work, as a development of alternative means of movement in suspended transport robotic systems, vibrating mobile devices, which can contain a cargo platform with a product or, for example, a simple manipulator, have become. We suggest you familiarize yourself with the results of the device's research in the forward and reverse direction of movement in the vertical plane. For the convenience of the study, a round profile (pipe) is taken as a monorail, on which a mobile vibrating device is strung.\u0000\u0000The design of the device can be quite diverse: in the form of elastic elements, brake, friction, overtaking, eccentric and ratchet mechanisms, etc. In this case, an elastic conical collet is used, which contacts the surface of the column. An effective means of implementing the given function is the use of an electromagnetic pad brake.\u0000\u0000The structure is built according to a two-mass scheme, which contains a working body, an electromagnetic drive and a locking mechanism. The effect of vibratory movement of the device along a vertical (rough) pipe is realized according to the asymmetry scheme of the first type under the action of longitudinal harmonic oscillations.\u0000\u0000Cyclic programming provides automatic execution of specified operations, stopping ","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126532089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STAMPING BY ROLLING BLANKS USING ADVANCED ENERGY-EFFICIENT INDUCTION HEATING","authors":"Matviychuk Viktor, Savkiv Volodymyr","doi":"10.37128/2306-8744-2022-4-7","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-7","url":null,"abstract":"The article presents the results of development and research of technological schemes of cold forming by rolling (CFR) of blanks. Expansion of the technological capabilities of the processes of COP and improving the quality of products is based on the control of active friction forces and deformability of the processed metals. The main limiting factors in the application of SHO processes are insufficient ductility of metals, which causes the risk of destruction of workpieces, as well as relatively large deformation forces that cause unfavorable operating conditions of the rolling bearing unit. The solution of these problems is facilitated by the transition to hot SHO. However, the problems of manufacturing by the hot SHO method of products from tubular and solid cylindrical billets have been little studied to date. An effective process of billets heating is induction heating, but its application is characterized by relatively low efficiency.\u0000\u0000In this work, it is recommended to use new materials and technology for the manufacture of induction heaters for the implementation of hot SHO, which open up opportunities for improving induction heating equipment for industrial applications. The use of new generation induction heaters to replace other heating methods in metalworking has significant advantages: higher efficiency; less scattered magnetic fields; less complexity of the coil design; increased geometric freedom; no water cooling is required.\u0000\u0000In order to study the hot SHO, devices for rolling billets with conical and cylindrical rolls were designed and manufactured. Physical modeling of hot SHO by using solid cylindrical lead billets was carried out. It is experimentally proved that the process of hot SHO allows to achieve significant degrees of deformation even at unfavorable stress-strain state and insignificant power of the equipment. Thus, the process of induction heating of blanks can be quite effective when processing them by hot SHO.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132239780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MATHEMATICAL MODELING OF THE EXTRACTION PROCESS IN THE ACOUSTIC EXTRACTOR","authors":"O. Zhanna","doi":"10.37128/2306-8744-2022-3-6","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-3-6","url":null,"abstract":"One of the most promising physical methods of extraction processes intensification is ultrasound. Dissemination of sound waves in the device occurs by periodic rarefaction and compression of the liquid with the corresponding frequency to the frequency of sound wave oscillations and with a rarefaction amplitude equal to the compression amplitude. Effects of mixing and heating of the liquid, pulsation, collapse of cavitation bubbles is occurred during the operation of the ultrasonic generator.\u0000\u0000Extraction under the ultrasound influence has its advantages. The equipment has the possibility of continuous operation and is suitable for mass extraction of medicinal products from plants; the extraction time is reduced; the process takes place at a low temperature, which is very important for the thermolabile pharmaceutical ingredients. Sound waves are mechanical vibrations in solids, liquids, and gases that have frequencies higher than 20 kHz. Sound waves moves in any matter, they are associated with cycles of compression and expansion during movement in the medium, in contrast with electromagnetic waves. It is possible to reduce the extraction operating temperature of thermolabile compounds using ultrasound. In addition, any solvent can be used during ultrasonic extraction.\u0000\u0000Ultrasonic extraction can be used to extract biologically active substances such as essential oils, lipids, and dietary supplements from plants.\u0000\u0000To calculate the process of extraction of biologically active substances in an acoustic extractor, it is necessary to develop a mathematical model for establishing diffusion coefficients and extraction time.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123219561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MATHEMATICAL MODELING FILLING VOLUME GEOMETRIC STRUCTURES OF BUNKER-TYPE WORKING BODIES MATERIALS OF SPHERICAL FORM","authors":"Dubchak Viktor","doi":"10.37128/2306-8744-2022-4-9","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-9","url":null,"abstract":"The study of this work is a continuation of some previous results. The issue of filling certain external geometric objects or structures with a homogeneous set of other objects, in particular, a rounded shape, is an urgent task for solving a number of problematic issues in the field of agro-industrial production, storage and transportation of products of the appropriate geometric shape. The problem of effective maximum filling of containers of various geometries when storing products, bunker storages is always an urgent task not only in agricultural production, but also in the field of mechanical engineering, pharmaceuticals, furniture industry, military logistics, etc.\u0000\u0000As a result of research conducted on the modeling of technological processes of filling high-tech working bodies with geometric structures in the form of loose materials of spherical shape, in the research data, unlike the previous results, the emphasis is placed on the use of mathematical models of external three-dimensional geometric structures. For these structures, the introduction of similar to the flat case of fillings, the utility coefficient of such a maximum filling, was proposed and tested. In the case of three-dimensional geometric objects, this indicator is set as the ratio of the maximum possible useful volume to the entire volume of the external geometric structure that is to be filled (in percent). The value of this coefficient for standard three-dimensional geometric bodies or structures is calculated and the corresponding results are given. In this work, as supporting material, relevant drawings, tabular values as an illustration of individual formula results, and brief conclusions of the conducted research are given.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132700003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ELABORATION AND RESEARCH OF VIBROSHAKERS WITH ELECTROMAGNETIC DRIVE FOR CLASSIFICATION OF DRY MATERIALS","authors":"S. Ivan, Melnik Oleksandr, Pidlypna Maryna","doi":"10.37128/2306-8744-2022-4-12","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-12","url":null,"abstract":"There are schemes of various vibroshakers for classification of dry materials for construction, agriculture, food and processing industry, in mining and transport, examined in this article. As a result, of the analysis the authors came to conclusion about low efficiency and reliability of known vibroshakers. In course of their functioning significant part of consumed energy is spent for bringing in movement of massive driving elements. Actually, each of these vibroshakers realizes only one scheme of loading with relatively narrow range of change of its main parameters (amplitude, frequency, transmitting energy). Besides, intensive dynamic loadings make a negative influence on supporting elements of these machines and that leads to their rapid wear. With examination of these disadvantages of known vibroshakers, authors elaborated schemes of improved vibroshakers with electromagnetic drive for classification of dry materials. The proposed vibroshakers provide complex schemes of loading of processed material and that promotes to increase of efficiency of the working process. In one of these schemes foreseen possibilities of change of location of electromagnetic vibro-exciters relatively of foundation. Later allows to change a scheme of loading of the processed material depending from its physical-mechanical characteristics. An electromagnetic drive of the improved vibroschakers gives possibility of a separate and accurate adjustment of the main parameters of the loading of material in wide range. In the constructions of the vibroschakers are absent elements of friction and massive inertia masses therefore they have an increased reliability and efficiency. There are differential equations of the movements of the executive elements of the vibroschakers are proposed in the article that allow to determine their main working parameters in course of different stages of a working cycle. These equations can be used for creation of methods of design calculation of the proposed vibroschakers.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128523704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALYSIS OF STUDIES OF THE FORMATION OF MULTIFUNCTIONAL COATINGS BY GAS-DYNAMIC SAWING","authors":"K. Yulia","doi":"10.37128/2306-8744-2022-4-11","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-11","url":null,"abstract":"The article considers a progressive gas-dynamic method for the formation of functional coatings. A theoretical analysis of the methods for applying restorative coatings on the wear of a part was carried out in order to determine the advantages and disadvantages of these methods, the method of gas-dynamic spraying was characterized, and the feasibility of using the technology in industry was determined. This method has a significant advantage over other spraying methods and can be successfully used to improve the performance of units and mechanisms of process equipment. The article determines the optimal size of the sprayed copper and aluminum particles, as well as the required speed for the technological process. The main stages of coating formation by this method are considered. An inspection of modern equipment for gas-dynamic spraying was carried out. A general scheme of the technological process of forming a coating by gas-dynamic spraying has been developed, the dependences of the temperature and velocity of particles depending on the spraying methods have been determined: gas-flame (low-speed); electric arc; gas-flame (high-speed); plasma; detonation; and gas dynamic. The results of calculations and experimental values of the dependence of the speed of aluminum and copper particles on the obstacle surface on the size of these particles are presented.\u0000\u0000The article defines the typical characteristics of installations for gas-dynamic spraying of powder materials, after which these machines are analyzed to determine the most versatile, cost-effective and efficient installations used in domestic repair departments.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126663862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE USE OF ADJUSTABLE DAMPING DEVICES FOR INCREASING TECHNICAL LEVEL OF GROUND ROBOTIC COMPLEXES EQUIPPED WITH A MANIPULATOR","authors":"Strutynskyi Serhii, Nochnichenko Ihor, Kryvosheiev Vladyslav","doi":"10.37128/2306-8744-2022-4-6","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-6","url":null,"abstract":"A dynamic model of the manipulator of the robotic complex was developed on the basis of the conducted experimental studies. The concept of determining the dynamic characteristics of the mechanical system is proposed according to the results of the oscillation analysis. The algorithm is supplemented with modules considering possibility of using controlled damping devices. \u0000\u0000The constituent parts of the model represent the mechanical devices of the manipulator, in particular connections, rotary assemblies and damping devices. The model contains all the connections between the modules, which allows you to study the dynamic parameters during the operation of the mechanism. Differential dependencies for the implementation of the mathematical model, which includes the subsystem of dynamic damping of vibrational oscillations of the manipulator, are proposed. These dependencies reveal the essence of the oscillatory processes of the mechanical system in full. Guided damping devices introduced into the model allow to control parameters in order to increase the accuracy of the mechanism.\u0000\u0000The mathematical model is implemented via a software module that takes into account the impact working processes that occur in the connections and rotary assemblies of the mechanical system of the robotic complex. \u0000\u0000 The algorithm involves the use of a mechatronic system equipped with feedback sensors to control the manipulator. Controlled damping devices make it possible to increase the technical level and improve the dynamic characteristics of the mechanical system. Damping of oscillations by a mechatronic system with feedback was investigated and the influence of damping of oscillations on accuracy parameters when moving a robotic complex on an uneven surface was determined.\u0000\u0000 The paper presents the results of modeling an adjustable damper as part of a moving mechanical system. The innovative device uses a magnetorheological fluid as a working fluid, which allows you to control it with the help of electrical impulses. The conducted experimental studies made it possible to obtain key indicators and its operating characteristics of the damper. Based on these results, dependencies, which determine the control laws of a damper that uses a magnetorheological fluid, are proposed.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127596133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INCREASE OF WORK EFFICIENCYOF THE VIBRATING SEPARATOR","authors":"Shvets Oleksiy, Koruniak Petro, Baranovych Serhiy, Berezovetskyi Serhiy","doi":"10.37128/2306-8744-2022-3-5","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-3-5","url":null,"abstract":"Vibrating separation on sieves is one of the most common ways of loose materialsseparating, and seeds of agricultural crops in particular. Vibrating separators have a number of advantages, as they allow combining the processes of transportation and material separation. In the designs of the existing seed cleaning machines of this type, from the point of view of the design parameters of the working body, setting and mode of operation, it is difficult to improve the indicator of the completeness of the separation of grain mixtures into fractions. Therefore, there is a need to find ways to intensify this process, to develop and study the operation of technical means for their implementation.\u0000\u0000One of the ways to improve the conditions for the movement of components of grain mixtures through the holes of the sieves is to create an electric field above them. Theoretically, there is a certain initial value of the intensity of the electric field, at which the seed will start to orient itself in it. The optimal tension value will be the one at which the degree of orientation of the seeds on the oscillating sieve in the longitudinal direction will be maximum (when their longitudinal axis will be perpendicular to the sieve).\u0000\u0000The paper describes the results of the process study of separating seeds of cereal crops on a vibrating electric separator and substantiates the optimal values of the electric field intensity E, which can achieve the maximum effect of seed orientation on the sieve.\u0000\u0000The results of experimental studies showed that the effect of the electric field on the seeds of different crops is not the same. It reveals itself the least on wheat seeds, since the quantity of seeds oriented in the electric field was about 35%. For barley seeds, the value of the studied indicator was 48%. The maximum percentage of oriented oat seeds was about 53% at the maximum intensity of the electric field of 6.67 kV/cmover the sieve.\u0000\u0000It was revealed that the orientation of the seeds on the sieve affects the intensity of its sieving through the holes. Under conditions of maximum orientation, the index of sifting of wheat seed increased by 20...23%, barley seed - by 26...30%, oats seed - by 47%.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132289349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SIMULATION OF THE WORK OF PHOTOELECTRIC PLANTS","authors":"Rubanenko Oleksandr, Tokarchuk Oleksii, Solona Olena","doi":"10.37128/2306-8744-2022-4-8","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-4-8","url":null,"abstract":"The article draws attention to the fact that nowadays the demand for energy is not decreasing, but its cost is increasing. The need to research the parameters of photovoltaic modules and the capabilities of microprocessor technology for this is substantiated. It is noted that the scheme of electric distribution networks has become more difficult to operate, and the algorithms and methods of reliable and optimal management of modes are changing due to the modernization of the infrastructure of electricity supply and electricity consumption of the district. Nowadays, renewable energy sources are installed in the electrical distribution system at various levels of power supply and power transmission between the substation and consumers. Due to damage to the electrical equipment, there may be interruptions in the power supply, which unintentionally cause \"islanding\". During operation, situations sometimes arise when the power supply system of the \"islands\" is promptly de-energized starting from the points of connection of the \"islands\" to the unified electric power system. This happens based on the results of measuring the parameters of the mode of local electric power systems or based on the results of mathematical modeling of processes in local electric systems when, for example, the current levels of nodal voltages will not allow the use of an \"island\" electric network. For the purpose of researching processes in local electrical systems with photovoltaic plants, the article proposes their physical model in the form of a research bench, which can be used during the practical training of future employees who will manage the modes of distribution electrical networks with photovoltaic plants and maintain the equipment of such networks, systems and electrical stations Algorithms for optimal management of generated power, consumption and accumulation of electric energy tested using the proposed stand are designed to show the operating personnel ways of high-quality operation of distribution electric networks under the conditions of implementation of the Smart Grids concept.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"461 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125809849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESULTS OF NUMERICAL SIMULATION OF GEOTHERMAL COOLING IN THE VENTILATION SYSTEM OF ANIMAL PREMISES","authors":"Kaletnik Grigorii, Yaropud Vitalii","doi":"10.37128/2306-8744-2022-3-1","DOIUrl":"https://doi.org/10.37128/2306-8744-2022-3-1","url":null,"abstract":"The microclimate of livestock premises is determined by a set of physical, chemical and biological parameters inside the premises for keeping animals and is characterized by the following parameters: air temperature, internal surfaces of walls, ceilings, floors, windows, doors, and other internal structures; humidity of air, internal surfaces of walls, ceiling, floor, windows, doors, and other internal structures; the speed and direction of air flows in the locations of animals, manure, inflow and exhaust channels, windows and doors; the gas composition of the air - the concentration of carbon dioxide, ammonia, hydrogen sulfide, carbon monoxide; the presence of dust and microorganisms in the air; the intensity of natural and artificial lighting; optical radiation; the level of industrial noise, the degree of air ionization.\u0000\u0000Modern microclimate creation systems include subsystems: ventilation system - provides regulation of the gas composition and partly the air temperature (in the summer) in the room; air conditioning and heating systems - provide air temperature regulation in the room. Currently, various methods of cooling supply air are used in pig farming and can be divided into two types: vapor compression cooling units, so-called split systems and water evaporative cooling systems. However, additional cooling of the forced air into the pig house can be obtained using the geothermal effect. The purpose of the research is to substantiate the expediency of the geothermal cooling process in the ventilation system for injecting clean air in piggery premises. As a result of research, the physico-mathematical apparatus of the geothermal heating process in the fresh air injection ventilation system, which is based on the equations of continuity of air flow, Navier-Stokes equations, heat transfer equations, initial and boundary conditions, is generalized. The results of the verification of the numerical modeling of the geothermal heating process in the ventilation system of clean air injection in the Star CCM+ software package are given. As a result of the simulation, the distribution of the temperature field and the vector field of air flow velocities in the ventilation system for injecting clean air was obtained, and the feasibility of the geothermal cooling process was proven.","PeriodicalId":171295,"journal":{"name":"Vibrations in engineering and technology","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132191469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}