Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005650
Oleksii Razzhivin, Oleg Markov, O. Subotin
In the article the actual scientific and technical task of research of process of management of heating of melt in the induction furnace due to introduction of system of the automated control of stabilization of a temperature mode is solved. Peculiarities of technological process of melt heating in induction furnace are investigated, parameters of control process are established. Improved mathematical model and algorithm for temperature heating of the melt. An automated control system for heat transfer in an induction furnace by adjusting the frequency of the current on the inductor. The structure and algorithm of functioning of the automated control system are developed. The formation of information support of the automation system and its integration into the basic system of accounting for the parameters of the technological process.
{"title":"Automated Melt Temperature Control System In Induction Furnace","authors":"Oleksii Razzhivin, Oleg Markov, O. Subotin","doi":"10.1109/MEES58014.2022.10005650","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005650","url":null,"abstract":"In the article the actual scientific and technical task of research of process of management of heating of melt in the induction furnace due to introduction of system of the automated control of stabilization of a temperature mode is solved. Peculiarities of technological process of melt heating in induction furnace are investigated, parameters of control process are established. Improved mathematical model and algorithm for temperature heating of the melt. An automated control system for heat transfer in an induction furnace by adjusting the frequency of the current on the inductor. The structure and algorithm of functioning of the automated control system are developed. The formation of information support of the automation system and its integration into the basic system of accounting for the parameters of the technological process.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133347249","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005760
O. Sadovoy, L. Vakhonina, Dmytro Koshkin, V. Martynenko
A numerical calculation and comparative analysis of the single-phase transformers active power losses were carried out. The electromagnetic static devices compared have a radial structure of an electromagnetic system with a hexagonal and a tetrahedral rod cross-section. The features of the calculation of active power losses of transformers and reactors according to the optimization criterion of the minimum number of losses based on the objective function method with technical level indicators that include relative variables are shown. The influence of replacing rectangular shaping contours of rods and winding turns with hexagonal ones in variants of spatial radial twisted magnetic cores with a frequency of 400 Hz on active power losses is determined. An optimization comparison of the variants showed that the active power loss rate improves when the cross-section of the rods changes from rectangular to hexagonal at a frequency of 400 Hz.
{"title":"Comparison of Active Power Losses of Single-Phase Electromagnetic Static Devices by Radial Electromagnetic System","authors":"O. Sadovoy, L. Vakhonina, Dmytro Koshkin, V. Martynenko","doi":"10.1109/MEES58014.2022.10005760","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005760","url":null,"abstract":"A numerical calculation and comparative analysis of the single-phase transformers active power losses were carried out. The electromagnetic static devices compared have a radial structure of an electromagnetic system with a hexagonal and a tetrahedral rod cross-section. The features of the calculation of active power losses of transformers and reactors according to the optimization criterion of the minimum number of losses based on the objective function method with technical level indicators that include relative variables are shown. The influence of replacing rectangular shaping contours of rods and winding turns with hexagonal ones in variants of spatial radial twisted magnetic cores with a frequency of 400 Hz on active power losses is determined. An optimization comparison of the variants showed that the active power loss rate improves when the cross-section of the rods changes from rectangular to hexagonal at a frequency of 400 Hz.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131078860","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005747
I. Savchenko, O. Shapoval, T. Chupilko, Yuliia Ulianovska, Viacheslav Titov, V. Shchepetov
Mechanical means directly related to the information support path (locators, ob-servation stations, tracking, detection, localization, etc.) require special attention within the technical channels for obtaining information. Their precise and stable performance is of paramount importance. During operation, the instability of the structure occurs when driving on the road, that is, the vibration of the structure. The vibration of the structure during movement is a significant obstacle to im-proving the accuracy of the devices. The influence of the main structural and technological factors on the thermal and stress-strain state, as well as on the performance of large-sized tires, was studied using a comprehensive approach. Modeling of tires with various structural and technological parameters was carried out. Technical solutions in the field of large tires construction, manufacturing technology, and operating modes, have been developed based on complex computational and experimental research, which allowed to provide a decrease in temperature at the design stage, which leads to the in-creased resource. Simulation and calculation are possible only with the use of computer technology and appropriate software. The need to take into account changes in the properties of tire construction materials in the conditions of heating was established by calculation and confirmed by the experiment. o calculate the stress-strain state under conditions of high temperatures, a mathematical model of the moment anisotropic three-layer shell of the tire was used, taking into account the nonlinear deformation of composite materials. The tire is modeled with a three-layer anisotropic shell according to the design features based on the broken line hypothesis for the carcass. The shell is loaded with internal pressure. The movements of the outer layers are independent. The displacements of the middle layer are calculated from the displacements of the outer layers and the curvature changes during deformation. Modeling of the tire with a multilayer shell, material properties of the integral equation with the creep core, taking into account the temperature effect on composite materials of the tire design and implementation in time using numerical methods is possible only with modern computer technology. Calculation at variable parameters and loads, simulation computer modeling, allows to estimate the properties of the structure at the design stage. A simple and convenient environment model for describing the rheological properties of composites under conditions of various loads and elevated temperatures has been developed. The paper presents a model for describing the rheological properties of composite anisotropic materials; the method of determining viscosity and temperature parameters for inelastic materials is shown; the possibility of predicting the behavior of composites in different modes of loads and temperatures is demonstrated.
{"title":"Computer Simulation of Safety Processes of Composite Structures Rheological Properties","authors":"I. Savchenko, O. Shapoval, T. Chupilko, Yuliia Ulianovska, Viacheslav Titov, V. Shchepetov","doi":"10.1109/MEES58014.2022.10005747","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005747","url":null,"abstract":"Mechanical means directly related to the information support path (locators, ob-servation stations, tracking, detection, localization, etc.) require special attention within the technical channels for obtaining information. Their precise and stable performance is of paramount importance. During operation, the instability of the structure occurs when driving on the road, that is, the vibration of the structure. The vibration of the structure during movement is a significant obstacle to im-proving the accuracy of the devices. The influence of the main structural and technological factors on the thermal and stress-strain state, as well as on the performance of large-sized tires, was studied using a comprehensive approach. Modeling of tires with various structural and technological parameters was carried out. Technical solutions in the field of large tires construction, manufacturing technology, and operating modes, have been developed based on complex computational and experimental research, which allowed to provide a decrease in temperature at the design stage, which leads to the in-creased resource. Simulation and calculation are possible only with the use of computer technology and appropriate software. The need to take into account changes in the properties of tire construction materials in the conditions of heating was established by calculation and confirmed by the experiment. o calculate the stress-strain state under conditions of high temperatures, a mathematical model of the moment anisotropic three-layer shell of the tire was used, taking into account the nonlinear deformation of composite materials. The tire is modeled with a three-layer anisotropic shell according to the design features based on the broken line hypothesis for the carcass. The shell is loaded with internal pressure. The movements of the outer layers are independent. The displacements of the middle layer are calculated from the displacements of the outer layers and the curvature changes during deformation. Modeling of the tire with a multilayer shell, material properties of the integral equation with the creep core, taking into account the temperature effect on composite materials of the tire design and implementation in time using numerical methods is possible only with modern computer technology. Calculation at variable parameters and loads, simulation computer modeling, allows to estimate the properties of the structure at the design stage. A simple and convenient environment model for describing the rheological properties of composites under conditions of various loads and elevated temperatures has been developed. The paper presents a model for describing the rheological properties of composite anisotropic materials; the method of determining viscosity and temperature parameters for inelastic materials is shown; the possibility of predicting the behavior of composites in different modes of loads and temperatures is demonstrated.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114955022","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005731
T. Haikova, S. Chernenko, E. Klimov, A. Chernysh, Mykhailo Burlyga
It is shown that energy saving and energy efficiency increase should be considered as one of the main sources of future economic growth. The equipment that is used for the manufacture of products in the press shops has powerful electric motors. They are the main consumers of electrical energy. Replacing powerful electric motors with low-power ones will lead to energy savings. Crank bending machines are mainly used in mass production press shops. This calculation method makes it possible to control the deformation force and decrease it to reduce the overall operation of the press and its energy consumption. This will allow the use of less powerful presses for bending. It is shown that deformation occurs in two stages of sequential loading of the workpiece, which leads to splitting up the deformation process and, thereby, to decreasing the required force compared to the initial one. Using these analytical dependences for calculating the geometric dimensions of the resulting rift, it is possible to simplify the structure and design of the deforming tool, create a method for calculating technological and design parameters. The minimum force of the buffer, which must be used in the first operation, can be calculated based on the condition of maintaining the straightness of the workpiece and overcoming the resistance forces.
{"title":"Increasing the Energy Efficiency of Sheet Bending Equipment","authors":"T. Haikova, S. Chernenko, E. Klimov, A. Chernysh, Mykhailo Burlyga","doi":"10.1109/MEES58014.2022.10005731","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005731","url":null,"abstract":"It is shown that energy saving and energy efficiency increase should be considered as one of the main sources of future economic growth. The equipment that is used for the manufacture of products in the press shops has powerful electric motors. They are the main consumers of electrical energy. Replacing powerful electric motors with low-power ones will lead to energy savings. Crank bending machines are mainly used in mass production press shops. This calculation method makes it possible to control the deformation force and decrease it to reduce the overall operation of the press and its energy consumption. This will allow the use of less powerful presses for bending. It is shown that deformation occurs in two stages of sequential loading of the workpiece, which leads to splitting up the deformation process and, thereby, to decreasing the required force compared to the initial one. Using these analytical dependences for calculating the geometric dimensions of the resulting rift, it is possible to simplify the structure and design of the deforming tool, create a method for calculating technological and design parameters. The minimum force of the buffer, which must be used in the first operation, can be calculated based on the condition of maintaining the straightness of the workpiece and overcoming the resistance forces.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124573082","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005726
T. Korenkova, V. Kovalchuk, A. Al-Mashakbeh, D. Rodkin
A method for diagnosing unsteady modes of electrohydraulic complex electromechanical systems based on monitoring of energy processes as part of the variable-frequency electric drive of the pump has been developed. It is based on the analysis of instantaneous power derivatives and its amplitude-frequency characteristics at all elements of the energy channel. Diagnostic signs of the identification of emergency modes have been determined and a set of organizational and technical measures has been formulated to prevent the development of an unsteady mode by using hydrodynamic and cavitation protection devices, active energy absorbers and devices for reducing dynamic loads in pipeline networks.
{"title":"The Energy Method for the Diagnosis of the Emergency Modes of Electrohydraulic Complex Electromechanical Systems","authors":"T. Korenkova, V. Kovalchuk, A. Al-Mashakbeh, D. Rodkin","doi":"10.1109/MEES58014.2022.10005726","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005726","url":null,"abstract":"A method for diagnosing unsteady modes of electrohydraulic complex electromechanical systems based on monitoring of energy processes as part of the variable-frequency electric drive of the pump has been developed. It is based on the analysis of instantaneous power derivatives and its amplitude-frequency characteristics at all elements of the energy channel. Diagnostic signs of the identification of emergency modes have been determined and a set of organizational and technical measures has been formulated to prevent the development of an unsteady mode by using hydrodynamic and cavitation protection devices, active energy absorbers and devices for reducing dynamic loads in pipeline networks.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122652715","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005636
A. Oksanich, Serhey Pritchin, M. Kogdas, Andriy Nekrasov
The authors proposed a way to increase the efficiency of solar cells based on gallium arsenide. The method is based on the formation of a porous layer on the surface of the solar cell to create an anti-reflective effect. The paper examines the influence of such parameters of the porous layer as the uniformity and size of the crystallites on the percentage of light reflection. A method of forming a porous wafer by anodizing with a pulsed current is proposed, the duty cycle of which consists of the time of turning on the current and the time of turning it off. During experimental studies, it was established that the structure of the layer depends mainly on the time of turning on the anodizing current during the work cycle. Pulse anodizing creates a bimodal effect in the crystal size distribution. The paper presents the photoluminescence spectra of samples obtained both during anodization with pulsed current and during anodization with direct current. The dependence of the percentage of light reflection on the parameters of the porous wafer was investigated. It is shown that the reflection is affected by the uniformity of the wafer and the size of the crystallites. The lowest percentage of reflection, which is equal to 4% at a light wavelength of 550 nm, was obtained with the following parameters of an anodizing pulse current: an anodizing current on time of 100 ms, and a current off time of 40 ms.
{"title":"Method for Improving the Quality of Porous Gallium Arsenide Wafer for Anti-Reflecting Coating of Solar Cells","authors":"A. Oksanich, Serhey Pritchin, M. Kogdas, Andriy Nekrasov","doi":"10.1109/MEES58014.2022.10005636","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005636","url":null,"abstract":"The authors proposed a way to increase the efficiency of solar cells based on gallium arsenide. The method is based on the formation of a porous layer on the surface of the solar cell to create an anti-reflective effect. The paper examines the influence of such parameters of the porous layer as the uniformity and size of the crystallites on the percentage of light reflection. A method of forming a porous wafer by anodizing with a pulsed current is proposed, the duty cycle of which consists of the time of turning on the current and the time of turning it off. During experimental studies, it was established that the structure of the layer depends mainly on the time of turning on the anodizing current during the work cycle. Pulse anodizing creates a bimodal effect in the crystal size distribution. The paper presents the photoluminescence spectra of samples obtained both during anodization with pulsed current and during anodization with direct current. The dependence of the percentage of light reflection on the parameters of the porous wafer was investigated. It is shown that the reflection is affected by the uniformity of the wafer and the size of the crystallites. The lowest percentage of reflection, which is equal to 4% at a light wavelength of 550 nm, was obtained with the following parameters of an anodizing pulse current: an anodizing current on time of 100 ms, and a current off time of 40 ms.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115014482","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005661
O. Chornyi, Valeriy Vatazhok, Olha Chorna, Denis Kalinin
The article discusses the process of developing a virtual complex for the study of direct current electromechanical systems with energy converters. For the first time, the technology of virtual stands of electromechanical systems was created in the form of mobile applications for gadgets running the Android OS. Conducted modeling of the electromechanical system in the Android Studio environment using the Kotlin programming language. A software application was created to work under the control of the Android OS and relevant studies of dynamic modes were carried out. The mobile application provides the opportunity to conduct research in real time; imitations of researched simulated objects with a high degree of realism; the possibilities of interactive action on the studied simulated processes, as well as the organization of feedbacks.
{"title":"Virtual Laboratory Complex for Studying the Theoretical Foundations of Construction and Analysis of Electromechanical Systems","authors":"O. Chornyi, Valeriy Vatazhok, Olha Chorna, Denis Kalinin","doi":"10.1109/MEES58014.2022.10005661","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005661","url":null,"abstract":"The article discusses the process of developing a virtual complex for the study of direct current electromechanical systems with energy converters. For the first time, the technology of virtual stands of electromechanical systems was created in the form of mobile applications for gadgets running the Android OS. Conducted modeling of the electromechanical system in the Android Studio environment using the Kotlin programming language. A software application was created to work under the control of the Android OS and relevant studies of dynamic modes were carried out. The mobile application provides the opportunity to conduct research in real time; imitations of researched simulated objects with a high degree of realism; the possibilities of interactive action on the studied simulated processes, as well as the organization of feedbacks.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116365338","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005740
Youssef Amine Ait Ben Hassi, Youssef Hennane, A. Berdai, V. Tytiuk
In microgrids, power sharing represents an important research topic since it prevents inverters from overloading. In fact, several power sharing methods have been proposed in literature. Most of them are dedicated to mono-PCC microgrids only, it means that effectiveness of these methods may not remain in the case of multi-PCC microgrids. That's why, in this paper, a mesh multi-PCC microgrid is considered and a proper power sharing method is suggested. However, even though accurate active and reactive power sharing are achieved, frequency and voltage deviations occurs. Therefore, power quality problems such as negative effects on the power system may result. To solve this issue, a secondary control method is introduced to restore voltage and frequency to the nominal values without compromising the power sharing among DGs. To verify the efficiency of the proposed controls, simulations are conducted using Simscape MATLAB/Simulink environment.
{"title":"Primary and Secondary Controls with Reactive Power Sharing in Mesh Microgrids","authors":"Youssef Amine Ait Ben Hassi, Youssef Hennane, A. Berdai, V. Tytiuk","doi":"10.1109/MEES58014.2022.10005740","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005740","url":null,"abstract":"In microgrids, power sharing represents an important research topic since it prevents inverters from overloading. In fact, several power sharing methods have been proposed in literature. Most of them are dedicated to mono-PCC microgrids only, it means that effectiveness of these methods may not remain in the case of multi-PCC microgrids. That's why, in this paper, a mesh multi-PCC microgrid is considered and a proper power sharing method is suggested. However, even though accurate active and reactive power sharing are achieved, frequency and voltage deviations occurs. Therefore, power quality problems such as negative effects on the power system may result. To solve this issue, a secondary control method is introduced to restore voltage and frequency to the nominal values without compromising the power sharing among DGs. To verify the efficiency of the proposed controls, simulations are conducted using Simscape MATLAB/Simulink environment.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130353191","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005665
O. Subotin, Oleg Markov, Oleksii Razzhivin
the aim of the work is to develop and study a mathematical model of ingot solidification to determine the exact parameters of soft reduction. To solve this problem, the appropriate method is the finite difference method (grid method). An explicit difference scheme was used to solve the considered differential equation. A refined mathematical model of ingot solidification has been developed, the numerical solution of which will make it possible to obtain the temperature field in the ingot cross section, and, therefore, will make it possible to more accurately obtain the parameters of soft reduction. A computer program has been developed that calculates the temperature field of a continuously cast ingot along its entire length. Using this program, you can calculate the technological parameters of soft reduction. The modeling of the crystallization process has been carried out. The data obtained were evaluated for adequacy and used in the development of practical recommendations and adjustment of the operating modes of the soft reduction roller section on a vertical slab continuous casting machine (SCCM). This method of mathematical modeling can be used for the calculation and theoretical analysis of the thermal regimes of the CCM at a variable speed of pulling the ingot.
{"title":"Study Of The Dynamics Of Solidification Of A Continuously Cast Ingot On The Improved Mathematical Model Of The Process Of Soft Compression","authors":"O. Subotin, Oleg Markov, Oleksii Razzhivin","doi":"10.1109/MEES58014.2022.10005665","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005665","url":null,"abstract":"the aim of the work is to develop and study a mathematical model of ingot solidification to determine the exact parameters of soft reduction. To solve this problem, the appropriate method is the finite difference method (grid method). An explicit difference scheme was used to solve the considered differential equation. A refined mathematical model of ingot solidification has been developed, the numerical solution of which will make it possible to obtain the temperature field in the ingot cross section, and, therefore, will make it possible to more accurately obtain the parameters of soft reduction. A computer program has been developed that calculates the temperature field of a continuously cast ingot along its entire length. Using this program, you can calculate the technological parameters of soft reduction. The modeling of the crystallization process has been carried out. The data obtained were evaluated for adequacy and used in the development of practical recommendations and adjustment of the operating modes of the soft reduction roller section on a vertical slab continuous casting machine (SCCM). This method of mathematical modeling can be used for the calculation and theoretical analysis of the thermal regimes of the CCM at a variable speed of pulling the ingot.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133213089","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}
Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005768
I. Yakovets, Nataliia Chuhai, I. Kravchenko
The professional competence formation of a future industrial designer is an important condition and an indicator of his/her readiness for professional activity. Based on the existing need to form professional competencies of design specialists, the aim is to examine and analyze the specifics of forming students' professional competencies in the process of designing biomimicry by methods for solving energy problems. The study shows that due to the objects created by designers the latest technologies for the preservation of the environment are introduced. The existing interdisciplinary relationship with engineering specialties, in particular, electric power, electrical engineering and electromechanics is shown. The concept of biomimicry in design is analyzed and its principles are defined. These are structure, action, balance, perfection. The functions of biomimicry are defined, such as theoretical, transformative, cognitive, reflective, sense-forming, organizing, instrumental, heuristic, active, communicative, adaptive, semantic, educational, informative, integrative, socializing, value, aesthetic. The development of wind energy converter, the design of which is based on the principles of biomimicry, is offered.
{"title":"Professional Competence Formation Among Students In The Design Process Of Biomimicry Methods For Solving The Energy Problem","authors":"I. Yakovets, Nataliia Chuhai, I. Kravchenko","doi":"10.1109/MEES58014.2022.10005768","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005768","url":null,"abstract":"The professional competence formation of a future industrial designer is an important condition and an indicator of his/her readiness for professional activity. Based on the existing need to form professional competencies of design specialists, the aim is to examine and analyze the specifics of forming students' professional competencies in the process of designing biomimicry by methods for solving energy problems. The study shows that due to the objects created by designers the latest technologies for the preservation of the environment are introduced. The existing interdisciplinary relationship with engineering specialties, in particular, electric power, electrical engineering and electromechanics is shown. The concept of biomimicry in design is analyzed and its principles are defined. These are structure, action, balance, perfection. The functions of biomimicry are defined, such as theoretical, transformative, cognitive, reflective, sense-forming, organizing, instrumental, heuristic, active, communicative, adaptive, semantic, educational, informative, integrative, socializing, value, aesthetic. The development of wind energy converter, the design of which is based on the principles of biomimicry, is offered.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128631359","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}
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