Dnipro University of Technology — Compliance with the Time
GEOMECHANICAL ENSURING OF MINING DEVELOPMENT OF TECTONIC STRESSED ORE LAYERS
Anatoly Kalashnik Leading Researcher of Geoflyuidomechanikal Laboratory, Ph.D., Mining institute KSC RAS, Apatity, e-mail:kalashnik@goi.kolasc.net.ru
Abstract. In paper results of the research directed to justification of methodical approach to geomechanical ensuring development of ore layers in tectonic stress rock are explained. The concept of methodical approach is that in structure of interrelation of geomechanics and technology of underground mining operations seven main stages reflecting life cycle of development of the ore field are allocated: investigation, additional exploration and opening, trial works, operation, incomplete side job, the complete side job, preservation. It is shown that the complexity of geomechanical justification increases multiply in case the field is presented by suite of ore bodies and is located in tectonic stress rock massive. Justification is executed and the geomechanical recommendations for conditions of collateral working off two ore layers in the conditions of action of tectonic forces regulating an order and the sequence of conducting mining operations are made. Keywords: geomechanics, underground mining, ore layers, tectonic stress rock.
THE VIBRATION CRUSHER PLATES SHAPE FEATURES
O.V. Fedoskina1, I.M. Matsyuk2, V.V. Batus3 1Ph.D., associate professor, department of engineering and generative, Dnipro University of Technology, Dnipro, Ukraine, e-mail: fedoskina.ev@gmail.com 2Ph.D., associate professor, department of engineering and generative, Dnipro University of Technology, Dnipro, Ukraine, e-mail: matsyukin@ua.fm 3student , Dnipro University of Technology, Dnipro, Ukraine
Abstract. A brief overview of some shapes of the working surfaces of the lining plates of vibrating jaw crushers used to obtain powder materials is given. These are recommendations for their rational use based on the size of the source material. Keywords: vibrating jaw crusher, lining, work surface, shape.
GPR EQUIPMENT FOR INTERNAL STRUCTURE RESEARCH AND MONITORING OF MINING STRUCTURES
Anatolii Kalashnik1, Andrey Dyakov2, Dmitry Zaporojec3 1Leading Researcher of Geoflyuidomechanical laboratory, Ph.D., e-mail: kalashnik@goi.kolasc.net.ru 2Scientific Researcher, e-mail: dyakov@goi.kolasc.net.ru 3Scientific Researcher, mail: zaporojec@goi.kolasc.net.ru
1, 2, 3 Mining Institute KSC RAS, Apatity Abstract. The paper describes the justification of georadar equipment used for research of internal structure and monitoring of mining structures at mining enterprises of Kola region. Measurements were performed by longitudinal and transverse profiling using Ramac/GPR X3M georadar complex equipped with screened antennas. The interpretation of the results was based on the detected patterns of distortion of the induced electromagnetic field due to the difference between the physical properties of the rocks of the main massif and the internal zones of inhomogeneity’s (fault tectonics, areas of increased fracturing and water saturation). Intensity of wave field distortion is shown to be determined by contrast of physical properties of rocks and depth of zone location. Numerous studies have confirmed the feasibility of using this georadar equipment to solve a number of mining problems. Keywords: georadar equipment, mining structures, internal structure, heterogeneity, water saturation. BASIS FOR MAJOR DESIGN SOLUTIONS OF HAULAGE MECHANISM LOW-WEB HIGH-SPEED EXTRACTION MACHINE
L.V. Lukienko Ph.D., Professor, Head of Predial Engineering and Technosphere Safety Department, Tula State Lev Tolstoy Pedagogical University, Tula, e-mail: lukienko_lv@mail.ru
Abstract: The article presents the results of development of design solution of low-web high-speed extraction machine. It has been shown that it is advantageous to use a chainless haulage system with a rack on the face side of the armoured flexible conveyor to meet modern requirements. The conveyor must be equipped with a cleaning plum to improve loading of the breaking mineral. Keywords: High-speed extraction machine, chainless haulage system, rotation unit, cutting disk. THE PROBLEMS OF INDUSTRIAL PRODUCTION WASTE PROCESSING
V.A. Fedoskin1, O.I. Yehurnov2, E.V. Fedoskina3 1Ph.D., Associate Professor of the Department of Automobiles and Automobile Facilities, Dnipro University of Technology, Dnipro, Ukraine, e-mail: fedoskin_va@ukr.net 2Ph.D., Director of Science and Prospective Development LLS ‘Ana-Tems’, Dnipro, Ukraine, e-mail: yegurnov@yahoo.com 3Ph.D., Associate Professor of the Department of Engineering, Technical Aesthetics and Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: fedoskina.ev@gmail.com
Abstract. The effectiveness of high-frequency shock loading in the processing of industrial waste is shown. The granular composition of crushing products and the distribution of particle size classes in a powder product are presented. Keywords: production waste, recycling, secondary resources, vibration, granular composition.
CALCULATION OF THE MAIN PARAMETERS AND OPERATING MODES FOR EQUIPMENT WITH A SCREW WORKING BODY Dmytro Mischuk1, Maxim Balaka2, Andriy Boychenko3 1Ph.D., assistant professor of Building Machinery, Kyiv National University of Construction and Architecture, Kyiv, Ukraine, e-mail: mischuk.do@knuba.edu.ua 2Assistant of Building Machinery, Kyiv National University of Construction and Architecture, Kyiv, Ukraine, e-mail: balaka.mm@knuba.edu.ua 3Student of group BMO-42s, Kyiv National University of Construction and Architecture,
Abstract. The calculation of the basic parameters for the designed equipment for the development of solid and frozen soils are present in paper. The optimal ratios of the geometric parameters for the screw working body are determined, depending on its technological purpose and modes of operation. Keywords: screw working body, parameter, soil development. RESEARCH OF THE STRUCTURE AND PROPERTIES OF HIGH -STRENGTH ALLOYS IN THE EDUCATIONAL PROCESS
S. Karpukhin1, S. Pakhomova2, M. Unchikova3 1,2,3Ph.D., assistant Professor e-mail: 1dr.mgtu@yandex.ru, 2mgtu2013@yandex.ru, 3mgtu-gvi@yandex.ru 1,2,3 Bauman Moscow State Technical University, Russia
Abstract. The paper analyzes the existing methodology for studying the structure and properties of high -strength Nickel alloys. The importance of developing new teaching methods for students of technical universities is shown. Recommendations for the implementation of the bachelor's practical training in the direction of 22.04.01 "Materials Science and Materials Technology" are presented. The importance of revealing the creative potential of the student in the process of his independent work in the classroom is justified. The creative approach consists in the fact that the work is performed on the basis of a systematic analysis of the set research topic, taking into account technological, economic and environmental factors. Keywords: methods of laboratory-practical lesson, independent work of students, research, alloys, structure, performance properties, role-playing game. UDC: 621.787.669 IMPROVING THE PERFORMANCE PROPERTIES OF GEARS FOR MINING EQUIPMENT
S. Pakhomova1, R. Fakhurtdinov2 1,2Ph.D., assistant Professor 1,2Bauman Moscow State Technical University, e-mail: 1mgtu2013@yandex.ru, 2ferum-2011@yandex.ru
Abstract. Deformation hardening - important technological factor of management of carburized layer substructure. The formation of a favorable substructure - substructure with high resistance to local microplastic deformation - occurs in conditions of development of competitive processes. On a degree of their development is renders the influence of initial structural condition of a carburized layer, which, except chemical composition, is defined by technology of thermochemical treatment. To number of the factors, dependent from technology of thermochemical treatment, concern: carbon saturation in the carburized layer, the martensite morphology and carbon concentration in it, volumetric share of a redundant carbide phase and its distribution in a carburized layer. Keywords: deformation hardening, thermochemical treatment, carburized layer, substructure, martensite morphology, carbide phase. THE CREATION OF LIGHTWEIGHT DESIGNS OF CLOSED GEARS
S.V. Shatov1, I.M. Matsyk2, E.M. Shlyakhov3 1Ph.D., professor, Department of Construction and Road Machines, Pridneprovsk State Academy of Civil Engineering and Architecture, Dnipro, Ukraine, E-mail: shatov.sv@ukr.net 2Ph.D., Associate professor, Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, E-mail: 3Associate professor, Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine 2,3e-mail: shlyahove@nmu.org.ua
Abstract. The article presents the results of the study of reducing the mass of a single-stage gear cylindrical gearbox by optimizing the design of its frame. Keywords: closed mechanical transmission, gear reducer, weight reduction, design optimization. FORCE CALCULATION OF FLAT TRUSSES USING A SIMPLIFIED TWO-DIMENSIONAL MODEL OF FORCED OSCILLATIONS
Yuri Kholodniak1, Svitlana Kaporovych2, Yevgen Korotenko3 1Ph.D., Associate Professor, Head of Technical Mechanics Department, e-mail: holodnjak.juri@gmail.com 2Ph.D., Senior Lecturer of Technical Mechanics Department, e-mail: kaporovych@gmail.com 3Ph.D., Associate Professor, Head of Language Training Department, e-mail: yevgendk@gmail.com 1,2,3 Donbass State Engineering Academy, Kramatorsk, Ukraine
Abstract. A simplified two-dimensional mathematical model of forced oscillations of flat trusses has been developed, which describes the oscillations of a weightless truss with a point mass while simultaneously acting on them with vertical and horizontal harmonic disturbing forces. Dependences for calculating the resonant frequencies of an oscillating system are also obtained. Keywords: plane trusses, forced oscillations, mathematical model, resonant frequencies, power calculations. IMPROVEMENT OF BRIDGE CRANE OPERATING CHARACTERISTICS ON THE CHOICE OPPORTUNITY OF OPTIMAL WHEEL PROFILE
T.S. Savelieva1, M.S. Tsonda2 1 Ph.D, Associate Professor, E-mail: savelievats@gmail.com 2 Student, E-mail: marinatsonda1998@gmail.com 1,2Engineering and Generative Design Department, Dnipro University of Technology, Dnipro, Ukraine
Abstract. In the work the researches on the choice of the optimum design of the running wheels of the bridge crane for reduction of wear and increase of its service life are carried out. Using the finite element method, a comparative analysis of the designs of the axle crane axle assembly with different types of wheels was carried out. The use of a wheel with a conformal profile that has less stress on the work surface has been proven. Keywords: bridge crane, running wheels, wear, conformal wheel, finite element method. IMPROVING THE QUALITY OF MINERAL RAW MATERIALS WHEN EXPLOITING COMPLEX STRUCTURAL DEPOSITS OF USEFUL MINING IN UNDERGROUND METHOD
Vladimir Protsiv1, Alex Juravel2, Alexander Nedelsky3 1Ph.D., Professor, Engineering and Generative Design Department, Dnipro University of Technology, Dnepr, Ukraine, e-mail: protsiv@ukr.net 2Postgraduate, Engineering and Generative Design Department, Dnipro University of Technology, Dnepr, Ukraine, e-mail: alekseyzhuravel@ukr.net 3Ph.D., senior researcher, UkrNIPIpromtekhnoloii, Zheltye Vody, Ukraine
Abstract. The paper considers the issues of developing complex structural deposits using chamber development systems with dilution and loss indicators of 28–30% and 3.5–5.3%, respectively, which significantly leads to an increase in the cost of the final product and a decrease in its competitive ability in the world market. Keywords: dilution, layered, chamber development system, boron crown, granular composition, machine class. APPLICATION OF ASSEMBLY GEAR HOBS WITH CARBIDE INSERTS BY THE DIMINISHED PRESSURE ANGLE FOR THE GEAR HOBBING OF THE CYLINDRICAL GEARS BY THE LARGE MODULES
Yaroslav Lytvyniak1, Igor Yurchyshyn2 1PhD, Associated Professor of Manufacturing Engineering Department, Lviv Polytechnic National University, Lviv, Ukraine, e-mail: ltvnkya@i.ua 2PhD, Associated Professor of Manufacturing Engineering Department, Lviv Polytechnic National University, Lviv, Ukraine, e-mail: yur@center-sapr.com
Abstract. The reasonable improvement of the cutting process of involute cylindrical gears with the large modules is offered by the worked out assembly gear hobs with carbide indents with the diminished pressure angle. Keywords: cylindrical gears, assembly gear hob, carbide inserts. PROSPECTS FOR APPLICATION OF RUBBER SITES FOR DRY SEPARATION OF FINE-GRAINED MATERIALS
V.А. Fedoskin1, N.N. Erisov2, K.I. Kornilenko3 1Ph.D., Associate Professor of the Department of Automobiles and Motor Vehicles, Dnipro University of Technology, Dnipro, Ukraine, e-mail: fedoskin_va@ukr.net 2Assistant, Department of Automobiles and Automobile Economy, Dnipro University of Technology, Dnepr, Ukraine, e-mail: erisov@ukr.net 3post-graduate student of the Department of Automobiles and Motor Vehicles, Dnipro University of Technology, Dnepr, Ukraine, e-mail: kornilenko.k@gmail.com
Annotation. The results of laboratory tests on the dry separation of abrasive materials on a screen with rubber sieves and a complex particle path are presented. The use of rubber sieves for dry separation of fine-grained and powder materials is justified. Keywords: screening, rubber sieve, screening efficiency. SELF-INSTALLING DRIVE PINIONS IN DRUM MILL DRIVES
Borys Vynogradov Ph.D., Professor of Department Innovative Engineering, State Higher Educational Institution ‘Ukrainian State University of Chemical Technology’, Dnіprо, Ukraine, е-mail: borvvin@gmail.com
Abstract. The paper analyzes the factors affecting the durability of open gears of domestic drum mills. It is shown that the use of self-aligning drive pinion will increase the hardness of the working surfaces of the teeth, increase the durability of open gears and transfer to the drum a single drive gear power of more than 6000 kW. Keywords: drum mill, open gear, abrasive wear, self-aligning pinion. ENGINEERING OF CRANKSHAFT SUSPENSION SUPPORT OF REVOLVER TYPE
K.A. Ziborov1, T.O. Pismenkova2, М. Tsonda3 1Ph.D., Head of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: ziborov.k.a@nmu.one
3 student of group 132m-19-2, Dnipro University of Technology, Dnipro, Ukraine
Abstract. The operation conditions of the mechanical part of the revolver type press are distinguished, characterized by high wear in heavy modes of operation. The quality of the product and the stages of the technological process of its production were determined; the method of determination of quality indicators is chosen, the offered measuring instruments that provide the given accuracy. Keywords: revolver type press, sliding bearing, engineering activity, product quality indicators. SETTING UP OF THERMAL TREATMENT MODES OF SHAFT MINE TANKS DETERMINATION BY DEFINED KINEMATIC AND POWER MOVEMENT FEATURES
K.A. Ziborov1, V. Batus2, A. Fartushna3 1 Ph.D., Head of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: ziborov.k.a@nmu.one 2,3 student of group 132, Dnipro University of Technology, Dnipro, Ukraine
Abstract. The analysis of the use of mine trolleys in the conditions of increasing the intensity of operation and identified a number of unresolved problems related to the stability of their movement along the mine rail path. The technology of heat treatment of bushing hub bushings for high surface hardness indices is proposed. Keywords: mine trolley, resistance to movement, axle box, stress-strain state, heat treatment modes. MECHANICAL PROPERTIES OF THE SURFACE LAYER OF FRICTION WHEEL-RATE MATERIAL MATERIALS TAKEN INTO ACCOUNT OF THERMAL PHYSICAL PROCESSES IN THE CONTACT AREA
K.A. Ziborov1, V.Е. Dytiuk2, D.A. Аharkov3 1Ph.D., Head of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: ziborov.k.a@nmu.one
Abstract. In the work on the basis of theoretical studies of the motion parameters of the vehicle on the rail path, a mathematical model of the interaction of the wheel and the rail in the elementary contact area in the presence of normal and tractive effort is formulated. Using the analytical model, a dependence was obtained that describes the change in the average temperature at the contact point of the wheel-rail pair from the speed of the rail vehicle. The current value of the modulus of elasticity of the material of the friction pair depending on the contact time is determined. Keywords: surface layer, temperature, friction steam, rail vehicle. CONTACT STIFFNESS OF ROTOR/STATOR SURFACES AND RADIAL STIFFNESS OF BEARING
Andrey Nikiforov PhD, Senior Staff Scientist, Mechanical Engineering Research Institute of Russian Academy of Sciences, e-mail: n.andre@mail.ru
Abstract. In this paper, an analytical evaluation of the stiffness that corresponds to the contacts of bodies in rotary systems is performed. The simulation is based on Hertz theory. As examples, contact stiffness is calculated for the experimental rotor and bearing 608 2RS. Keywords: mathematical model, contact interaction of two and three bodies with cylindrical and spherical surfaces.
CERTIFICATION OF VEHICLE TRANSPORT
Konstantin Bas1, Vitaly Krivda2 1Ph.D., Professor of the Department of Automobiles and Automobile Economy, National Technical University ‘Dnipro Polytechnic’, Dnipro, Ukraine, e-mail: bas.k.m@nmu.one 2Ph.D., Assotiate Professor of the Department of Automobiles and Automobile Economy, National Technical University ‘Dnipro Polytechnic’, Dnipro, Ukraine, e-mail: vitaliy.krivda@gmail.com
Annotation. The paper provides a theoretical analysis of the state of certification in motor vehicles, and standardization, also analyzes the regulatory framework for metrological support of vehicle tests, substantiates the need to assess the measurement uncertainty during vehicle tests. Keywords: road transport, standardization, certification, metrological support, tests. IMPROVEMENT OF THE TRANSPORT AND TECHNOLOGICAL SCHEME OF TRANSPORT OF METAL PRODUCTS (ON THE EXAMPLE OF THE METALURGICAL ENTERPRISE 'MK AZOVSTAL')
Serhiy Cheberyachko1, Oleg Deryugin2, Viktoriya Dotsenko3 1Ph.D., Professor of Department of Labour Protection and Civil Safety, Dnipro University of Technology, Dnipro, Ukraine; e-mail: sicheb@ukr.net 2Ph.D., Associate professor of Department of Transportation Management, Dnipro University of Technology, Dnipro, Ukraine, e-mail: oleg.kot@meta.ua 3Student, National Technical University "Dnipro poly-technology", Dnipro, Ukraine, e-mail: viktoriadocenko0@gmail.com
Abstract. Improvement of transport-technological scheme of transportation of rolled metal (slabs) at the expense of introduction of effective "roadrailner" technology is substantiated in the work. Keywords: industrial transport, railway transport, road transport, roadrailner technology, operational properties, economic efficiency, payback period. RUBBER LINING AND ITS PLACE IN THE DISINSTALLATION OF MINERAL RAW MATERIALS Ye.V. Kalgankov Senior Lecturer at the Department of Reliability and Repair of Machines, Dnipro State Agrarian and Economic University, Dnipro, Ukraine, e‐mail: kalhankov.ye.v@dsau.dp.ua Abstract. The article deals with the problems of using rubber as a protective liner for drum ball mills. The basic designs of lining are established and their advantages are given. The results of experimental production investigations of the Plate-N-Wave lining at the first stage of grinding with a ball with a diameter of 100 mm are presented. The effect of profile and lining material on the technological parameters of the grinding process was established, the percentage of finished class mill increased by 0.056 mm. Keywords: rubber, disintegration, mineral raw materials, iron ore, lining, grinding stage, mill.
RESEARCH OF THE INFLUENCE OF COLLOIDAL SOLUTION OF SILVER NANOPARTICLES ON THE EMF OF THE JACOBI-DANIEL ELECTRICAL ELEMENT
E. Y. Van1, A. E. Gradov2, E. A. Ilyina3 1Ph.D., associate Professor Institute of living systems, Immanuel Kant Baltic Federal University, Kaliningrad, e-mail: elenavan2007@yandex.ru 2student of the Institute of living systems, Federal State Autonomous educational institution «Baltic Federal University of Immanuel Kant», Kaliningrad, e-mail: gradov270@mail.ru 3student of the Institute of living systems, Federal State Autonomous educational institution «Baltic Federal University of Immanuel Kant», Kaliningrad, e-mail: eliz.ilyina2014@yandex.ru
Abstract. A comprehensive study of the colloidal solution of silver nanoparticles was carried out, and the EMF of a galvanic cell was measured depending on the volume fraction of it in electrolyte solutions by direct potentiometry. Data obtained from the dependence of the EMF of a galvanic cell on the volume fraction of the colloidal solution of silver nanoparticles in the cathode and anode spaces of the electrolyte confirm the assumption of micelle recharge and cathode polarization. Keywords: nanoparticles, silver, potentiometry, galvanic element. RATIONALE FOR THE INTRODUCTION OF FINE COAGULATION IN THE ENRICHMENT TECHNOLOGY OF MAGNETITE QUARTZITES
Tatiana Oliynyk1, Lyudmila Skliar2, Natalia Kushniruk3 1Ph.D., Professor Department of Mining and Chemistry, Kryvyi Rih National University, Kryvyi Rih, Ukraine, e-mail: taoliynik@gmail.com 2Ph.D., Associate Professor, Department of Mining and Chemistry, Kryvyi Rih National University, Kryvyi Rih, Ukraine, e-mail: lyuda.cuclina@gmail.com 3Ph.D., Associate Professor, Department of Mining and Chem-istry, Kryvyi Rih National University, Kryvyi Rih, Ukraine, e-mail:kushniruk-natalia@ukr.net
Abstract. This paper presents the theoretical study of the possibility of applying fine screening in the last stage of processing for concentrate production with a mass fraction of iron of at least 68.0% in the sections of the Northern Mining and Processing Plant. Keywords: magnetite quartzite, fine screening, quality improvement, iron concentrate, mass recovery.
SINE-WAVE FILTER FOR INCREASED FREQUENCY OF VOLTAGE: FEATURES OF CHARACTERISTICS AND USAGE
Mikhail Pustovetov Ph.D., Engineer of Engineering Technology Department, Technological Institute (Branch) of Don State Technical University, Azov, e-mail: mgsn2006@yandex.ru
Abstract. In this paper author suggests results of the study carried out by simulation of properties of sine-wave filter for increased frequency of voltage at various parameters of the filter and the power supply system, of which it is an element. Paper contains recommendations for parameters of filter and power supply system selection for the best compliance with electro-magnetic compatibility. Keywords: sine-wave filter, electrical power supply system, frequency converter, simulation.
ARTISTIC MODELING AND FORMATION OF COMPLEX OBJECTS
Anastasiia Loginova PhD, Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: An.O.Loginova@gmail.com
Abstract. The term 'artistic model' is widely described in the work, which designates one of the most important functions of art - the reflection of reality with the help of conditional art means and images of art in order to achieve and reveal the human meaning of this reality. Keywords: artistic modeling, design theory, art communication. ANALYSIS OF RENDERER SYSTEMS IN AUTODESK 3D MAX
Ilya Verner1, Alexander Tverdohleb2, Viktoriia Dytiuk3 1,2Assistant, Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine , e-mail: ill3@ukr.net 3Student of group 132-19, Dnipro University of Technology, Dnipro, Ukraine
Abstract. This article considers review the possibilities of rendering systems for obtaining a photorealistic image of a scene in 3Ds Max. Emphasis is placed on build-in rendering systems and the ease and clarity of working with the system for students. Keywords: 3Ds Max, Autodesk, education, renderer, rendering. DEVELOPMENT OF COMPUTER PROGRAMS FOR SIMPLIFIED METHODS OF CALCULATING THE STRENGTH OF I-BEAMS
Yuri Kholodniak1, Alexander Kostikov2, Svitlana Kaporovych3 1Ph.D., Associate Professor, Head of Technical Mechanics Department, e-mail: holodnjak.juri@gmail.com 2Ph.D., Associate Professor of Manufacturing Processes and Automation Engineering Department, e-mail: alexkst63@gmail.com 3Ph.D., Senior Lecturer of Technical Mechanics Department, e-mail: kaporovych@gmail.com 1,2,3 Donbass State Engineering Academy, Kramatorsk, Ukraine
Abstract. Programs for calculating the strength of statically definable I-beams were created in the Mathcad system. The computer plots internal forces and sets the minimum I-beam number that meets the strength conditions. The completed developments are recommended to students and production specialists for use in educational purposes and engineering practice. Keywords: plane trusses, forced oscillations, mathematical model, resonant frequencies, power calculations. SIMULATION OF MILLING CELLS IN SHELL THROUGH THE CAM MODULE COMPAS-3D v18
Alexander Telipko1, Ilya Verner2, Sergiy Patsera3 1 Student, Technologies of Mechanical Engineering and Materials Science Department, e-mail: Telipko.O.M@nmu.one 2 Head of Informational Technology Design Laboratory, Engineering and Generative Design Department , e-mail: ill3@ukr.net 3PhD, Professor, Technologies of Mechanical Engineering and Materials Science Department, e-mail: sergiy.patsera@ukr.net 1,2,3Dnipro University of Technology, Dnipro, Ukraine
Abstract. The computer simulation of the milling of cells of the experimental shell of the rocket space housing of aluminum alloy. For simulation, we use the program "CNC Module. Milling Processing", which is integrated into КОМПАС-3D v18. It is shown that of the three pocket milling strategies ("zigzag", "equidistant", "line by line") the most productive is the "zigzag" strategy. Keywords: shell, cell, modeling, milling, strategy. COMPLEX OF PROGRAMS FOR RESEARCH OF THE DESIGN OF THE PRIMARY TRANSDUCER OF THE TWO-ORDINATE MAGNETOSTRICTION CONVERTER OF ANGULAR MOVEMENTS
A.A. Vorontsov 1, I.G. Gvozdeva2 1 lecturer of department "Computers and Systems", Ph.D., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com 2 student, Penza State Technological University, s. Penza, e-mail: gvozd_69@mail.ru
Abstract. The aim of the work is to study the design of the primary transducer of a two-coordinate magnetostrictive angular displacement transducer with the help of the developed set of programs. The parameters and properties of structural elements are analyzed. In conclusion, the corresponding conclusions are made. Keywords: mathematical model, modeling method, program, calculation, modeling, magnetostriction, transformation, angular displacement transducer. RESEARCH OF THE 0Z-AXIS PROJECTION OF THE MAGNETIC FIELD STRENGTH OF THE SOLENOID IN THE DESIGNS OF MAGNETO-STRICT CONVERTERS OF ANGULAR DISPLACEMENTS
A.A. Vorontsov1, A.V. Nazarenko2 1 lecturer of department "Computers and Systems", Ph.D.., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com 2 student, gr.19IV1m, Penza State Technological University, s. Penza, e-mail: anynazar@yandex.ru
Abstract. In given article the analysis of key parametres of the solenoid influencing formation of magnetic fields, generated is in detail considered at course in impulse environment. It is spent mathematical modelling of a magnetic field of the solenoid at change of the co-ordinate counted on axis 0Z from its centre for various values of radiuses and length of the solenoid. Keywords: The solenoid; intensity of a magnetic field; solenoid magnetic field; dependence of intensity on coordinate Z. MODELING OF A MAGNETIC SYSTEM OF STRUCTURES OF TWO-DIMENSIONAL MAGNETOSTRICTION CONVERTERS OF ANGULAR MOVEMENTS
A.A. Vorontsov1, D.S. Nazarenko2 1 lecturer of department "Computers and Systems", Ph.D., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com 2 student, gr.19IV1m, Penza State Technological University, s. Penza, e-mail: anynazar@yandex.ru
Abstract. The magnetic fields are simulated for two-coordinate magnetostrictive angular displacement transducers, the basic forms and mathematical models of permanent magnets used in the new design of angular displacement transducers are considered. Keywords: magnetostrictive, two-coordinate angular displacement transducer, goniometer, magnetostriction, magnetic field, modeling of magnetic fields. TO THE QUESTION OF USE OF ANGLOMERS IN THE SYSTEMS OF SECURITY OF CONSTRUCTION OF CONSTRUCTION WORKS
A.A. Vorontsov1 1 lecturer of department "Computers and Systems", Ph.D., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com
Abstract. This article discusses in detail goniometers, the principle of which is based on various physical effects used in safety systems for construction work. It is shown that, depending on the conditions of their work, it is necessary to select a specific one. In conclusion, the corresponding conclusions are made. Keywords: goniometer, magnetostriction, the use of goniometers, magnetostrictive goniometers. RESEARCH OF SURFACE EFFECT IN MAGNETOSTRICTION CONVERTERS OF LINEAR AND ANGULAR MOVEMENTS
A.A. Vorontsov1 1 lecturer of department "Computers and Systems", Ph.D., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com
Abstract. This article describes in detail a phenomenon called a skin or a surface effect, which manifests itself in the flow of an alternating electric current in the surface layer of a waveguide, also called an effectively conducting Ze layer. The analysis of the main factors affecting the thickness of the surface layer is carried out. Mathematical modeling of the surface effect and estimation of the thickness of the Ze layer at various values of the frequency of oscillations of the alternating electric current are carried out. Keywords: Skin effect, magnetostrictive protractor, effective conductive layer, surface effect, mathematical modeling of the skin effect. RESEARCH OF INCREASING COMPUTER HIGH SPEEDS IN NETWORKS USING PRIVATE CLOUDS
A.A. Vorontsov1, V.N. Shachnev2 1 lecturer of department "Computers and Systems", c.t.sci., Penza State Technological University, s. Penza, e-mail: aleksander.vorontsov@gmail.com 2 student, gr.19IV1m, Penza State Technological University, s. Penza, e-mail: anynazar@yandex.ru
Abstract. The aim of the work is to conduct research on changes in performance when connecting remotely via the Internet to the desktop of a private cloud virtual machine at Penza State Technological University. In the work, an analysis is made of the change in the speed of RAM and the processor of three computers with qualitatively different device configurations. It was shown that after connecting to the remote desktop of the virtual machine, the processor load is reduced and the memory load is increased. Keywords: Remote Desktop, a virtual machine, the performance study, cloud, private cloud. SELF-CONSISTENT DYNAMIC MODEL OF MAGNETOSTRICTION ANGULAR MOVEMENT WAVEGUIDE MAGNETIZATION
Yu.N. Slesarev 1, A.N. Salamatin2 1 Ph.D., professor of department " Automation and Control", Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com 2postgraduate, Penza State Technological University, s. Penza, e-mail: salamatin1994@yandex.ru
Abstract. This article discusses a dynamic model of magnetization of a waveguide of a magnetostrictive angular displacement transducer. It allows, taking into account the influence of demagnetizing fields, to determine the magnetization of the waveguide both in the local area and along the entire length of the waveguide of the magnetostrictive transducer of angular displacements. The numerical calculation method presented in the article can also be used in the calculation of the magnetization of the waveguide of a magnetostrictive linear displacement transducer. Keywords: model, dynamic model, modeling, numerical method, waveguide, magnetostriction, magnetostrictive transducer, angular displacement transducer, numerical method, numerical calculation method. STUDY OF THE MAGNETIC FIELD TENSION OF CONTINUOUS CONSTANT MAGNETS OF MAGNETOSTRICTION CONVERTERS OF LINEAR OR ANGULAR MOVEMENTS
Yu.N. Slesarev1, A.N. Salamatin2 1 Ph.D., professor of department " Automation and Control", Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com 2postgraduate, Penza State Technological University, s. Penza, e-mail: salamatin1994@yandex.ru
Abstract. The article discusses in detail the analysis of the main factors affecting the formation of magnetic fields of magnetostrictive converters of linear or angular displacements when using a continuous permanent magnet in them. The analysis of the influence of each factor is carried out. Calculation formulas are derived for calculating the strengths of magnetic fields created by continuous permanent magnets. Keywords: modeling, magnetostriction, magnetostrictive transducer, angular displacement transducer, magnetic field, mathematical modeling of magnetic fields. STUDY OF THE MAGNETIC FIELD STRENGTH OF THE RING PERMANENT MAGNETS OF MAGNETOSTRICTION CONVERTERS OF LINEAR OR ANGULAR MOVEMENTS
Yu.N. Slesarev1, A.N. Salamatin2 1 Ph.D., Professor, Department of Automation and Control, Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com 2postgraduate, Penza State Technological University, s. Penza, e-mail: salamatin1994@yandex.ru
Abstract. The article discusses in detail the analysis of the main factors affecting the formation of magnetic fields of magnetostrictive converters of linear or angular displacements when using an annular permanent magnet in them. The analysis of the influence of each factor is carried out. Calculation formulas are derived for calculating the magnetic field strengths created by a ring permanent magnet. Keywords: modeling, magnetostriction, magnetostrictive transducer, angular displacement transducer, magnetic field, mathematical modeling of magnetic fields. MODELING OF A MAGNETIC SYSTEM OF ACOUSTIC TREATMENT OF A MAGNETOSTRICTION CONVERTER OF ANGULAR MOVEMENTS
Yu.N. Slesarev1, A.N. Salamatin2 1 Ph.D., professor of department " Automation and Control", Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com 2postgraduate, Penza State Technological University, s. Penza, e-mail: salamatin1994@yandex.ru
Abstract. In this article modeling of magnetic system of the magnetostriction tiltmeter is considered. Process of interaction of the magnetic fields created by current impulses and a permanent magnet, process of formation of a current impulse and deformation of a wave guide at impact on him of magnetic fields is considered. For modeling wave guides with section round and squared were used. Keywords: modeling, magnetic field, magnetic system, modeling of magnetic system, wave guide, permanent magnet, elastic constants, Elcut. TO THE QUESTION OF DETERMINING THE ANGLE TILT OF THE PLANE OF A TWO-ORDER MAGNETOSTRICTION CONVERTER OF ANGULAR MOVEMENTS REGARDING THE HORIZONTAL PLANE
Yu.N. Slesarev 1 Ph.D., professor, Department of Automation and Control, Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com
Abstract. In given article the settlement formula of a corner of an inclination of a plane two-coordinate magnetostrictive tiltmeter through inclination corners in mutually perpendicular planes is received. Coincidence of numerical values of the results received at modelling and an experimental method testifies to adequacy of the settlement formula. Keywords: model, angle of inclination of the plane, calculation of the angle of inclination, two-coordinate magnetostrictive transducer of angular displacements, magnetostrictive transducer of angular displacements. RESEARCH OF MAGNETIC FIELD TENSION NEAR THE BASES OF PERMANENT MAGNETS OF CYLINDRICAL FORM IN MAGNETIC STRICTION CONVERTERS OF ANGULAR MOVEMENTS
Yu.N. Slesarev 1 Ph.D., professor, Department of Automation and Control, Penza State Technological University, s. Penza, e-mail: SlesarevUN@gmail.com
Abstract. This article describes in detail the modeling of magnetic fields near the bases of permanent cylindrical magnets. Based on the simulation results, recommendations are given on preventing the formation of ultrasonic torsion waves at points not provided for by calculations. Keywords: ring magnet, magnetic field strength, magnetic field of a ring magnet, magnetic field of a solid magnet, tension near the base of a permanent magnet. PECULIARITIES OF TEACHING ENGINEERING AND COMPUTER GRAPHICS TO STUDENTS IN ENVIRONMENTAL EDUCATION PROFILE IN DNIPRO UNIVERSITY OF TECHNOLOGY
Artem Pavlychenko1, Iryna Matsyuk2 1Ph.D., Head of the Department of Ecology and Technologies of Environmental Protection, Dnipro University of Technology, Dnipro, Ukraine, e-mail: pavlichenko.a.v@nmu.one 2Ph.D., Associate Professor of the Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: matsyukin@ua.fm
Abstract. The article analyzes the peculiarities of teaching subjects of "Engineering Graphics" and "Applied Computer Graphics" to higher education seekers in specialty 183 "Environmental Technologies". Expected learning outcomes for these disciplines provide the skills and knowledge of applying computer technology and modern software when developing new technologiesfor environmental protection and improving existing ones. Keywords: environmental education, environmental protection technologies, engineering graphics, applied computer graphics, computer aided design systems, environmental protection equipment. OVERVIEW AND ANALYSIS OF GENERAL-PURPOSE OPERATING SYSTEM FAMILIES AND THEIR CAPABILITIES
A.I. Martyshkin1, D.E. Ilyichov2 Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Alexey314@yandex.ru Student of group 17iv1bp, Faculty of automated information technologies, FGBOU VO "Penza State Technological University", e-mail: biberlink@mail.ru
Abstract. The paper analyzes four families of General-purpose operating systems and their capabilities. Based on the results of the analysis, brief characteristics of the used algorithms for planning and dispatching tasks were compiled. Keywords: General-purpose operating system, scheduling algorithms, process dispatching, computing resource, scheduler, priority. MODULE FOR FORCED PROCESS DISPATCHING FOR GENERAL-PURPOSE OPERATING SYSTEMS
A.I. Martyshkin Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Alexey314@yandex.ru
Abstract. In the article, after reviewing the existing approaches and methods, a decision was made on the approach used to solve the problem under consideration. A resource allocation method based on the mechanisms common to the systems considered was selected and implemented as a module. The module runs calculations in a configuration that corresponds to the system topology, sets a real-time scheduling policy for threads, assigns them to available computing cores, and independently dispatches task execution. Keywords: General-purpose operating system, scheduling algorithms, process dispatching, computing resource, scheduler, priority. DESCRIPTION OF THE CONCEPT AND STRUCTURE OF THE SYSTEM AND ITS COMPONENTS
A.I. Martyshkin1, D. E. Ilyichov2 1Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Alexey314@yandex.ru 2Student of group 17iv1bp, Faculty of automated information technologies, FGBOU VO "Penza State Technological University", e-mail: biberlink@mail.ru
Abstract. The article defines the concepts of the system, describes the structure of the system by defining its components. Various classifications of systems are given. Nondeterministic systems and their comparison with deterministic ones are considered separately. The specifics of research and modeling of nondeterministic systems are revealed. Keywords: system, research, classification, elements, external environment, interaction. REVIEW AND ANALYSIS OF VARIOUS APPROACHES TO MODEL CLASSIFICATION
A.I. Martyshkin1, D.E. Ilyichov2 Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Alexey314@yandex.ru Student of group 17iv1bp, Faculty of automated information technologies, FGBOU VO "Penza State Technological University", e-mail: biberlink@mail.ru
Abstract. The article is devoted to the theory of system modeling. The paper defines the concepts of model and modeling, and describes in detail various approaches to classifying models. The basic principles of modeling are disclosed, and the sequence of modeling steps is described. As a method for studying complex systems, simulation modeling is considered separately, and its advantages over traditional types of system modeling are shown. The basic classification of simulation models is given. Keywords: modeling, simulation, method, classification, system, research. OVERVIEW OF AUTOMATIC PROGRAMMING METHODS
A.I. Martyshkin1, D.A. Trokoz2 1Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University",e-mail: Alexey314@yandex.ru 2Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Dmitriy.trokoz@gmail.com
Abstract. The article provides theoretical information about the theory of automatic programming. We define a finite automaton, a deterministic finite automaton, and a nondeterministic finite automaton. Comparative analysis of deterministic finite state machine and nondeterministic finite auto Mata, based on what conclusion is made about concurrency automaton. The main methods of defining and modeling a nondeterministic finite state machine are described. Keywords: automata theory, finite automata, deterministic automata, nondeterministic automata, parallelism, methods for specifying automata. ANALYSIS OF THE MOST PROMISING ALGORITHMS FOR PLANNING REAL-TIME OPERATING SYSTEMS
A.I. Martyshkin Ph.D., Associate Professor, Associate Professor of the Department of Computers and Systems, FGBOU VO "Penza State Technological University", e-mail: Alexey314@yandex.ru
Abstract. The article describes the basic principles of real-time operating system planning algorithms. It is revealed that tasks in real-time operating systems are divided into periodic and aperiodic, and static and dynamic scheduling algorithms are used for their planning. Keywords: operating system, scheduling algorithms, scheduler, priority, efficiency, performance, real-time system.
INTENSE TRAINING OF STUDENTS AT THE FIRST YEAR ACCORDING TO ENGINEERING GRAPHICS
Vladimir Tokarev Ph.D., associate Professor of the department of graphics, Soloviev Rybinsk State Aviation Technical University, Rybinsk, e-mail: tokarev@rsatu.ru
Abstract. Features of parallel expeditious training at the first year in graphic disciplines are considered by optimization of intensive training of students of technical specialties. Keywords: disciplines of a graphic cycle, vocational training, methods of graphic constructions. SOLID-STATE SIMULATION USAGE IN THE AUTOCAD FOR THE VISUALIZATION OF SURFACES INTERSECTION LINE
Tamara Savelieva1, Dmytro Pustovoi2 1Ph.D., Associate Professor of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: savelievats@gmail.com 2Ph.D., Associate Professor of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: pustovoi.d.s@gmail.com
Abstract. The paper presents the results of using the AutoCAD graphics system to build complex lines of intersection of surfaces. Examples of solid models of engineering parts of complex configuration are given. Keywords: graphic disciplines, AutoCAD, intersection of surfaces, solid model, visualization. DEVELOPING A TRAINING PROGRAM FOR ERGONOMIC ANALYSIS OF WORKING CONDITIONS
Serhiy Cheberyachko1, Oleg Deryugin2, Olena Tretyak3 1Ph.D., Professor of Department of Labour Protection and Civil Safety, Dnipro University of Technology, Dnipro, Ukraine; e-mail: sicheb@ukr.net 2Ph.D., Associate professor of Department of Transportation Management, Dnipro University of Technology, Dnipro, Ukraine, e-mail: oleg.kot@meta.ua 3Ph.D., Associate professor of Department of Transportation Management, Dnipro University of Technology, Dnipro, Ukraine, e-mail: lenusia3366@gmail.com
Abstract. The paper proposes a case for the development of the future specialist for the protection of the complexity of systemic creative thinking, perseverance in achieving the goal of professional and research activities by solving a number of interrelated problems in the analysis of working postures, establishing ergonomic risks and identity trauma, determining the cost of purchasing a variety of equipment that can help reduce injuries or diseases of the musculoskeletal system and increase productivity and substantiate the feasibility of yoga. with a loss of purchasing comparing the treatment and rehabilitation of workers. This approach shapes the student's imaginative thinking, ability to make informed decisions. To develop an effective information system of process support at all stages of management of the educational process and to provide operational control of the parameters of the educational process, in which the level of mastery of competencies acts and to adequately respond to their deviation from the planned values. Keywords: ergonomic risk, industrial hazards, safe work, car repair, "REBA" method.
MATHEMATICAL MODELING OF ELECTROMAGNETIC OSCILLATIONS
Olena Korniichuk Ph.D., Associate Professor, Department of General Technical and Natural Sciences, Zhytomyr Agro-technical College, Zhytomyr, Ukraine, e-mail: elena.k.02@i.ua
Abstract. The article is devoted to the methodology of the use of mathematical modeling in the process of teaching Higher mathematics to students of technical specialties. In particular, the electrical system was investigated, which consists of a resistor, a coil and a capacitor. It was analyzed of the current in the circuit, the elements of which are connected to the source of the EMF – to the battery or generator. The model is based on the theory of differential equations using computer technology and tools graphical interpretation of the solution. Key words: electric circuit, resistance, inductance, capacitance, voltage, charge, current, differential equation.
CONTENTS AND METHODS OF PRACTICAL TRAINING IN THE TECHNICAL BIONICS COURSE
Irina Matsyuk1, Eduard Shlyakhov2 1Ph.D., Associate Professor of the Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: matsyukin@ua.fm 2Associate Professor, Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: shlyahove@nmu.org.ua
Abstract. This paper outlines the content and methodology of practical training in technical bionics with students of Dnipro University of Technology. Keywords: technical bionics, educational program, practical training, methodology, competence. INTEGRATIVE TRAINING OF FUTURE ENGINEERS
Sergey Podlesny1, Yuri Kholodniak2, Kaporovych Svitlana3 1Ph.D., Associate Professor, Dean of the Faculty of Automation Engineering and Information Technology, e-mail: sergeypodlesny@gmail.com 2Ph.D., Associate Professor, Head of Technical Mechanics Department, e-mail: holodnjak.juri@gmail.com 3Ph.D., Senior Lecturer of Technical Mechanics Department, e-mail: kaporovych@gmail.com 1,2,3 Donbass State Engineering Academy, Kramatorsk, Ukraine
Abstract. Modern technologies are based on interdisciplinary studies that determine the need for integrative training of engineers for innovation. The requirements for innovative engineers are formulated and a comprehensive approach to the formation of engineering competencies is substantiated. To meet the real needs of employers in competent specialists will allow the implementation of a multi-level competence approach based on the principle of "from highly specialized qualifications to world-class competencies" with the focus on solving topical science-intensive tasks in industry. The vector of further development of Donbass State Engineering Academy as the center of technological development of the north of Donbass. We consider interdisciplinarity, the commercialization of knowledge, the creation of technology transfer systems, and the incubator of startups and techno-starters as growth points. Keywords: knowledge economy, innovative engineering activity, engineering education, innovative engineer, integrative training, interdisciplinary knowledge. PUBLICATION COMPETENCE OF STUDENTS
V.E. Olishevska1, T.O. Nedaivoda2 1Ph.D., Associate Professor of Automobiles and Automobile Economy Department, Dnipro University of Technology, Dnipro, Ukraine, e-mail: olishevska.valentina@gmail.com 2Manager of the Reference and Bibliographic department of Scientific and Technical Library, Dnipro University of Technology, Dnipro, Ukraine, e-mail: nedaivoda.t.a@nmu.one
Abstract. Bibliographic description of the original sources often used in student works, which corresponds DSTU 8302:2015, is executed. The resulted examples of competent bibliographic description of labours facilitate perception of material, abbreviate time on the acquaintance and promote the publication competence of students in the conditions of the controlled from distance scientifically-educational process. Keywords: publication competence, information, bibliographic description. COMPETENCE APPROACH IN THE TRAINING OF MASTER'S (BACHELOR'S) FOR DESIGNING PROBLEMS SOLVING
K.A. Ziborov1, T.O. Pismenkova2, S.O. Fedoriachenko3 1 Ph.D., Head of Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: ziborov.k.a@nmu.one
Abstract. The paper analyzes the relevant requirements for modern design within the educational and professional program ‘Industrial aesthetics and certification of production equipment’ specialty 132 - Material Science. On the basis of the gained experience the necessity of formation in the preparation of a specialist-material expert of the training results which will allow him to perform the tasks of design is substantiated. Keywords: design project, competences, engineering activities, product quality. COMMUNICATIVE DESIGN AS A TOOL OF SOFT SKILLS FORMATION
T.O. Pismenkova1, K.A. Ziborov2, І.V. Vеrnеr3 1Ph.D., Associate Professor of the Department of Engineering and Generative Design, Dnipro University of Technology, Dnipro, Ukraine, e-mail: pismenkova.t.o@nmu.one
Abstract. This paper analyzes the habits and needs of new generations of Z and Alpha. The main directions of development of soft skills in the students of today for professional and social demand in the future are defined. The discipline "Communicative design" is proposed as a tool for forming soft and digital skills. Keywords: soft skills, communicative design, soft and digital skills generation tool, new generations of Z and Alpha. |
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