N. Smetankina, A. Merkulova, O. Postnyi, D. Merkulov, S. Misura
{"title":"Optimal Design of Layered Cylindrical Shells with Minimum Weight Under Impulse Loading","authors":"N. Smetankina, A. Merkulova, O. Postnyi, D. Merkulov, S. Misura","doi":"10.1109/KhPIWeek53812.2021.9569982","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569982","url":null,"abstract":"The problem of minimizing the mass of layered orthotropic constant-thickness non-closed shells at impulse loading is solved. The shell behavior is described within the framework of the improved theory. According to the extension method, the complex-shape shell can practically be extended to an auxiliary layered cylindrical non-closed simply supported rectangular-shape shell with the same composition of layers. An auxiliary shell is a body whose contour shape and boundary conditions yield a simple analytical solution. In this case, the auxiliary shell is a simply supported non-closed cylindrical layered one with a rectangular plan-view shape, making it possible to find the problem solution as a trigonometric series. To meet the specified boundary conditions, we apply compensating loads to the auxiliary shell. The adaptive optimization method with hybrid elements is applied to solving the problem of optimal shell design. The effect of the geometrical parameters on the optimum design of a two-layer composite shell is investigated. In addition, extremums corresponding to optimum shells and plates are found.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133370408","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":"Performance Assessment of Lyapunov-Function based 3-Phase SAPF in Compensating Harmonics of Industrial Motor Drive","authors":"M. Bajaj, O. Rubanenko, D. Danylchenko","doi":"10.1109/KhPIWeek53812.2021.9570084","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570084","url":null,"abstract":"SAPF, or Shunt Active Power Filter, is a bespoke power device that adjusts harmonics, improve power factor, and imbalance generated by various forms of non-linear loads in the distribution system. The control mechanism, i.e. the accurate detection of the current constituents, governs SAPF's efficacy as a harmonics compensator. In present work, a Lyapunov function established control method has been modeled for a three-phase SAPF for compensating the harmonic currents generated by industrial motor drives in power distribution networks. In this method, a control law has been found that renders the Lyapunov function continually remains -ive in wholly state values. Further, for keeping a constant reference dc-link capacitor voltage, PI-controller has been used. In MATLAB/Simulink, the technique was evaluated on a reformed test IEEE 13-bus distribution network feeding a three-phase chopper supplied DC motor drive on a solo bus. Comparison of outcomes attained through Matlab simulation also validates that the total harmonic distortion (THD) of source current and dynamic along with steady-state performance is enhanced in comparison to the former traditional approaches. Additionally, the rating of SAPF in the suggested technique has also been found to be considerably reduced in comparison to the other conventional methods.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122341758","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":"Heating Process Control While Welding in the Plasma of Normal DC Glow Discharge","authors":"M. Bolotov, G. Bolotov","doi":"10.1109/KhPIWeek53812.2021.9570032","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570032","url":null,"abstract":"The main parameters of glow discharge burning mode that affect the heating process of welded parts during diffusion welding are described in this work. The main control actions and their influence on the thermal energy characteristics of thenormal DC glow discharge are determined. It was established that the main control actions that characterize the mode of the heating and welding processess by the glow discharge are the discharge current (Id), which determines the total power released in the discharge gap, and the gas pressure (P), which changes the specific energy characteristics of the discharge. The technical means of control of the glow discharge main parameters (Id, P) during diffusion welding have been developed, which provide the regulation of the discharge current within 1…10 A and gas pressures in the discharge chamber from 1.33 to 13.3 kPa.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"52 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128908620","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":"Comparative Analysis of Energy Performance of Induction Single-Motor and Multi-Motor Traction Electric Drive","authors":"V. Voytenko, V. Vodichev, Alexandre Kalinin","doi":"10.1109/KhPIWeek53812.2021.9570063","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570063","url":null,"abstract":"The aim of the work is to carry out a comparative analysis of the energy indicators of induction single-motor and multi-motor traction electric drive based on the assessment of energy losses in traction induction electric motors of different power when using frequency control, which ensures the speed regulation of traction induction electric motors with constant magnetic flux. As a result of the analysis, a formula was obtained that allows to determine the number of low-power motors that are part of a multi-motor electric drive, in which the energy effect will be provided from the use of a multi-motor electric drive instead of a single motor electric drive.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125784613","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}
O. V. Savchenko, O. Derkach, Anatoliy Zinkovskiy, K. Savchenko
{"title":"Modal Analysis of a Blade H-type Darrieus Rotor Under the Action of Centrifugal Load and Energy Dissipation in the Material","authors":"O. V. Savchenko, O. Derkach, Anatoliy Zinkovskiy, K. Savchenko","doi":"10.1109/KhPIWeek53812.2021.9570035","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570035","url":null,"abstract":"In this paper, a three-dimensional beam model of the blade is presented, which may help to determine the frequency of the main mode of vibration under centrifugal load, characterized by the highest level of vibration stresses of the two-blade H-type Darrieus rotor. The dependences of the natural frequencies and the decrement of the blade vibrations on the rotational speed of the wind turbine rotor are obtained. The approaches presented in the paper to the modelling of the computational model of the blade in an integral Fourier transform frequency domain allow us to take into account the arbitrary dependence of energy dissipation on the frequency of vibrations under the action of centrifugal load.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125862873","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":"Calculation of the Schematic Solution of FET-transistor Electronic Load","authors":"R. Zaitsev","doi":"10.1109/KhPIWeek53812.2021.9569987","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569987","url":null,"abstract":"The introduction of electronic load for testing high-accurate low-voltage sources (solar cells) requires thorough reviewing not only the circuit construction, but also thermal and mechanical constructions. Adherence to the indications and principles, which are set out in this article, will provide the load with the ability to work at high power, and in the same time maintain good characteristics and reliability.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127508049","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}
M. Ostroverkhov, Silvestrov Anton, Galina Kryvoboka
{"title":"The problem of identification in the theory of identification","authors":"M. Ostroverkhov, Silvestrov Anton, Galina Kryvoboka","doi":"10.1109/KhPIWeek53812.2021.9569971","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569971","url":null,"abstract":"Theoretical positions of different scientific directions are divided into abstract and applied. The first ones are not directly related to real-world objects, such as mathematics. They can be accurate. The second ones are connected, and therefore they are closer, because the real object is not an ideal not an independent system, but has an infinite number of connections (based on the law of general interconnection) with other objects. Because of it, in the theory of identification, as a science applied to real objects, there is a problem of identification: how to build a mathematical model under real constraints, according to which criteria it is considered optimal. The solution of this problem equates the applied theory of identification closer to mathematically rigorous science.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124912733","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":"Diagnosis of Partial Discharges in High Voltage Oil-Filled Bushings Based on the Periodic Tests Results","authors":"O. Shutenko, Aleksandra Zagaynova","doi":"10.1109/KhPIWeek53812.2021.9570064","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570064","url":null,"abstract":"A comparative analysis of the reliability of partial discharge recognition using the periodic test results performed at low voltage and the dissolved in oil gas analysis for 24 high voltage bushings of sealed design is given. It was found that the periodic test results allowed to recognise partial discharges in 6 bushings out of 24, and the dissolved gas analysis results allowed to recognise partial discharges in 23 bushings. The correlation analysis performed has shown that in the development of partial discharges a significant statistical relationship has been revealed between gases characteristic of partial discharges (hydrogen, methane and ethane), as well as between these gases and the values of the dielectric loss tangent of the main bushings insulation. Based on the analysis of the trends in the gases indicators over time, it is demonstrated that the development of partial discharges does not always lead to a significant change in the values of the basic insulation of the gases, but the nature of the gas concentration dependences changes significantly.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124978053","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":"Criteria-Parametric Analysis of the Magnetic Core Geometric Dimensions Influence on the Operating Mode of the Device for Impact Pressing of Ceramic Powders of a New Design","authors":"Yu.V. Kashanskyi","doi":"10.1109/KhPIWeek53812.2021.9570044","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570044","url":null,"abstract":"The paper investigates the influence of the configuration of an electromechanical pulse device of the electromagnetic-induction type (the thickness of the magnetic circuit and the position of the inductor) on the space-time characteristics of the device for impact pressing of ceramic powders of a new design. The tasks are solved using the numerical finite element method. It is shown at what combination of the thickness of the magnetic circuit and the position of the inductor the pulse of the electromagnetic force is equal to or exceeds the pulse of the electric induction force of recoil. Based on the results of the analysis of the graphs of the instantaneous values of the electromagnetic force and the force impulse as its integral indicator, a relationship was established between these indicators and the initial position of the inductor. The practicability of using the research results for the selection of rational design parameters of the device for impact pressing of ceramic powders and determination of the maximum values of its main electromechanical indicators has been established.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126315742","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}
N. Zablodsky, S. Kovalchuk, R. Chuenko, A. Zhyltsov, V. Gritsyuk
{"title":"The numerical investigation of magnetic properties of metal-oxide based nanofluid","authors":"N. Zablodsky, S. Kovalchuk, R. Chuenko, A. Zhyltsov, V. Gritsyuk","doi":"10.1109/KhPIWeek53812.2021.9569996","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569996","url":null,"abstract":"In this work, a mathematical investigation of the magnetic properties of Fe3O4- Water nanofluid under the influence of a homogeneous external magnetic field is carried out. Models of nanofluid clusters, the effect of dipole-dipole interaction on the magnetization curve have been developed using molecular dynamics methods. The calculation of the interface in a two-phase medium (air and nanofluid) in a magnetic field was carried out by the finite element method. The simulation results are presented in the form of nanofluid magnetization curves and images of the surface of the fluid volume fraction.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126316192","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}