bluuebunny/crossref_metadata_2025_split huggingface dataset:
The research on the levelling process of thick slabs based on the electric motor parameters monitoring
Authors: Belyaev S Yu , Fedulov A A , Alexandrova A S , Raskatov E Yu , Meshchaninova T V 
Published: November 2020

Abstract
For the leveling machines in conditions of a small batch production which is typical for manufacturing sheets of non-ferrous alloys, in particular, titanium, the rollers heating is very influential. In order to expand the technological possibilities of the main equipment in non-stationary thermal working conditions of rollers that is an actual new scientific problem the experimental study of the loading in the hot leveling of slabs made from hardly-deformed titanium alloys was carried out on the 9-roll leveling machine. To achieve this goal the methodology of the complex experimental study of the actual loading definition of the leveling machine drive was developed. The experimental study was carried out for alloys Ti6Al4V (Vt-6s) and PT-3V with the initial heating temperature of the rolled product from 750 to 850°C. The slab leveling process was logged for slabs with the thickness from 20 to 68 mm, the width from 985 to 1720 mm by the number of passes through the leveling machine from 2 to 8. The treatment and analysis of experimental data was conducted on the basis of which the summary of permissibility of assortment expansion of leveling slabs has been formulated.
Multi-criteria model for the development of industrial logistics
Authors: Rakhmangulov A N , Kornilov S N , Aleksandrin D V , Shevkunov N O 
Published: November 2020

Abstract
Development of the industrial manufacturing logistics is associated with the need to solve many problems that affect the main technological units, internal and external transportation, as well as the industrial enterprise management system. The effectiveness of the solution of each of these tasks separately is traditionally evaluated by criteria, which, as a rule, conflict with the criteria of the effectiveness of other tasks and may even contradict the strategic goals of the organization. Modern logistics solutions are based on the achievement of a global economic criterion. However, the practical implementation of such general decisions is limited by the complexity of forming concrete actions based on them. In addition, traditional logistics solutions do not adequately meet the requirements of the concept of sustainable development, as they are poorly oriented towards environmental and social criteria. The developed multi-criteria model is a combination of alternative logistics solutions and criteria for their evaluation. The procedure for assessment and choosing the best combination of logistic decisions is based on a combination of multi-criteria decision-making methods. Application the developed model will reduce the costs of designing and implementing logistics solutions, as well as ensure the achievement of the sustainable development goals of an industrial enterprise.
Research and educational network of ground stations for receiving and processing information from educational satellites
Authors: Spiridonov A A , Saechnikov V A , Ushakov D V , Kezik A G , Cherny V E , Verstakovskaya A P , Evchik V E 
Published: November 2020

Abstract
The research and educational network of ground stations for receiving and processing information from low-orbit educational spacecraft is considered in this paper. Ground stations are equipped with an orbit measurement and determination system with time synchronization. This network realizes receiving and processing telemetry of ultra-small satellites, performing measurements and determining their orbital parameters and teaching students of aerospace specialties. Software and hardware of stationary and mobile ground stations are considered. The ground station was tested in the modes of receiving data and measuring the ultra-small satellite orbit with different frequency of telemetry packets. The initial orbit determination by frequency and time measurements of a LUOJIA-1 01 nanosatellite telemetry signal on several orbits with a limited number of data on one pass was studied. The nanosatellite radio signal nominal frequency and initial orbital parameters were unknown. Close orbit determination using a ground station network for satellite constellation launch in the first week of flight was considered. The simulation results showed that if the mean anomalies of neighbouring satellites differ by 0.1°, the spacecraft can be identified in the constellation by the frequency and time measurements of the same radio signal at three synchronized ground stations.
Temperature calculation for linear induction motor in transport application with multiphysics approach
Authors: Sarapulov F N , Goman V , Trekin G E 
Published: November 2020

Abstract
The article describes the implementation of the mathematical model of the interrelated electromechanical and thermal processes in a linear induction motor using simulation software MATLAB-Simulink. The developed model consists of electromechanical model, thermal model and cooling system (hydraulic) model which all affect each other. Temperature calculations of the traction single-sided linear induction motor for urban transportation system are performed for different regimes. The calculation results using the developed thermal model based on the thermal detailed equivalent circuit demonstrate a close concurrence with the finite element model, temperature values differ less than in 3.8-4.8%. Safe operation range for a traction linear induction motor was determined taking into account the uneven longitudinal heating using different variants of cooling systems and coolant flow values. Recommendations on their selection were formulated. Based on the calculations and following experimental testing it was determined that operation with the maximum load with current of 270 A and load force of 8,000 N is possible with the cooling air flow rate of at least 2.2 m3/s.
Research in Autodesk Inventor weldment performance cultivator frame
Authors: Telegin V V , Telegin I V 
Published: November 2020

Abstract
The paper examines issues of calculation in the welded frame structures design of engineering objects using as the example optimizing the cultivator frame. Design environment – Autodesk Inventor Professional. The purpose of the study was to reduce the cost of the base product. The basis for solving this problem is the development solid-state model of the cultivator frame basic construction; strength calculation of the frame with various options for its loading; the choice of the application of forces to the frame, leading to the occurrence of maximum stresses in the frame elements; the use of this option to analyze the strength of the frame after making changes to its design. In this paper, we investigated the possibility of replacing the steel grade of which the frame beams are made with St3ps steel; the possibility of making frame beams from a steel roll-formed channel is investigated. The possibility of reducing more than 30 percent of the frame mass by means of implementing the indicated actions is substantiated.
Synchronous reluctance machines: performance evaluation with and without ferrite magnets
Authors: Ibrahim Mohamed N , Tawfiq Kotb B , Rashad E M , Sergeant Peter 
Published: November 2020

Abstract
Nowadays, a great interest in the efficiency and the cost of electrical machines has been noticed. Therefore, Synchronous Reluctance Motors (SynRMs) have become more attractive alternative for induction and permanent magnet (PM) synchronous machines in several industrial applications. This is because they do not use rare-earth magnets, windings and cages in their rotor. Consequently, the cost and efficiency are improved. Nevertheless, a major problem of the SynRMs is the low power factor. To improve the power factor as well as the torque density and efficiency, the cheap ferrite PM can be inserted in the rotor, resulting in the so called ‘PM assisted SynRM’. The rotor design of SynRMs with and without permanent magnets (PMs) has a huge effect on the motor efficiency, torque density and power factor. This paper introduces an evaluation for the performance of SynRMs with and without PMs in terms of efficiency, torque and power factor maps as a consequence of different rotor designs. Three different rotor designs for the same machine stator have been compared. For one machine, the experimental measurements are obtained and the validation of the simulation results are confirmed. A preprint of this work is available under: https://biblio.ugent.be/publication/8515429.
Development of the temperature prediction algorithm for smart thermostat
Authors: Korolev S I , Muhutdinov R M , Sidorov O Yu , Goman V 
Published: November 2020

Abstract
This article discloses systems for control of microclimate parameters in buildings and rooms with different intellectualization levels. Requirements to a smart thermostat as to a building automation system part and tasks for smart thermostat development have been formulated. Thermal models of a typical room and heating radiator have been developed. The results of development of the air temperature prediction algorithm and heating radiator capable of real time operation and ensuring adaptation to varying conditions in a room have been described. Testing of the algorithm using real data has been carried out. Study of the temperature control model’s behavior in connection with the change of input data and determined parameters has been carried out. Calculation method for the room air heating time up to set temperature has been determined. Maximum absolute temperature determination error when prediction time does not exceed 7 minutes is approximately 1°C and relative temperature determination error is less than 5%.
Comparison of minimum energy consumption indicators for electric motors powered directly from the mains at part loads
Authors: Goman V 
Published: November 2020

Abstract
The article presents a comparison of minimum energy consumption indicators for motors powered directly from the mains at part load conditions. The energy characteristics of induction motors and line-start permanent magnet synchronous motors of different energy efficiency classes are compared. As an example, the calculations of proposed energy consumption indicators are provided for the throttle-controlled 2.2 kW pump unit with variable flow-time profile. It is shown that if a motor is used mostly at part load conditions and was chosen by its energy efficiency class only, minimum energy consumption might not be achieved. Universal average efficiency indicator is suggested for motors running at variable loads with output power much lower than the rated power. The comparison shows that the proposed average efficiency does not depend on a specific application or load profile and describes the motor energy consumption enough for practical goals. Thus, this indicator can be used for fast evaluation and selection of a motor by the lowest energy consumption criterion, especially without detailed information about load profile. Calculation of this indicator requires only motor efficiency data per 4 points 25, 50, 75, 100% of rated load.
Sensitivity of robust systems controlling first order objects
Authors: Volkov M A , Isakov D V 
Published: November 2020

Abstract
The study investigates controlled objects with a first order transfer function, which are known to be the most common for further obtainment of controllers in closed loop automatic systems. The transfer functions of compensating and non-compensating robust regulators with the first and second order of astatism were obtained in the work by means of the method of polynomial equations. Then the analysis of closed loop systems with controllers was carried out by the analytical method of coefficient estimates by a characteristic polynomial of the closed loop control system. The principle of the method lies in the obtainment of pattern indexes and further analysis of change of these coefficients under variations of parameters of the controlled object. The study results are presented graphically by means of the areas allowing to determine a way of alteration of transient processes in the closed loop control system under a variation of process parameters. The comparison of robust controllers with traditional ones was performed. The study results were proved through the modeling of the closed loop control systems under the influence of parametric disturbances of the controlled object, which results in alteration of a tangible controlled object gain coefficient.
Research of a bi-directional DC-DC converter integrated in electric car power installation
Authors: Gulyamov K H , Sharifov B N , Ghulomzoda A H , Safaraliev M Kh , Yunusov R M 
Published: November 2020

Abstract
This article presents the results of the simulation study of the bi-directional DC converter, including the time diagrams of the electric vehicle speed, voltage and current changes in various experiments, Also presented are the results of efficiency change and charge level, when using a bi-directional converter as well as without using it. The HFEDC (Highway Fuel Economy Driving Schedule) model was chosen for the simulation of the electric vehicle drive model using units simulating standardized driving cycles and as an algorithm for changing the vehicle’s control signal. Studies of the operating modes of the electrical equipment and the electric vehicle with the DC voltage conversion device in the power circuit of the DC source have been carried out by computer simulation in specialized programs for the study of dynamic systems. The simulation model of the reversible DC converter in the electrical power equipment of an electric vehicle was constructed on the basis of mathematical models of the individual elements reflecting their real physical properties. The present solution is the use of two-way DC voltage converters in the power conversion systems of modern electric drives, including the electric propulsion systems of prospective vehicles improves the efficiency of these systems.
Estimation of the operational characteristics and determination parameters of the vertical radial-axial hydraulic turbine type 400
Authors: Gulakhmadov A A , Qurbonalizoda S Sh , Kobuliev Z V , Ghoziev B N 
Published: November 2020

Abstract
The operational characteristic of the hydraulic turbine is an important document with the help of which would be carried out the control over the correct operation of a hydraulic turbine at a hydroelectric power station. This article presents the calculation of operational characteristic and determination of parameters of the vertical radial-axial hydraulic turbine (Francis turbine) for high heads type 400–500. In this study, the multiple mathematics used in computer which was written in Fortran language. We designed the operational characteristic and calculated the flow part of the runner. In addition, we determined the synchronous frequency of rotation of the hydraulic turbine with a one-dimensional method. The purpose of this work is to analyze the spatial structure of the flow in high-pressure hydraulic Francis turbines of the 400-500 types. Results of this computational and designing analysis can be useful for researchers to apply the present approach to calculate the operational characteristics and the parameters of the high-pressure hydraulic turbines.
Mathematical modelling of mutual electromagnetic influences of related power transmission lines in a transition process mode
Authors: Asanova S M , Suerkulov S M , Safaraliev M Kh , Asanova D U , Milutin R S 
Published: November 2020

Abstract
A mathematical model is obtained using the variable state method, allowing the simulation of electromagnetic processes in transmission lines and communication lines (both homogeneous and heterogeneous) taking into account the reciprocal inductive and capacitive bonds in transition and established modes. The resulting mathematical model can solve a number of important scientific and practical problems related to the design and operation of electric power systems (EEC). The model also allows for a variety of situations and tasks related, for example, to the calculation of circuit breakage, short circuit (SC) or single-phase SC in isolated neural networks. In particular, it is possible to calculate the steered voltage of the line from high-voltage or high-precision power lines. Based on this methodology, it is also proposed to develop an algorithm for the machine formation of mathematical models for the study of transition processes in complex electrical networks, where the initial data will be their parameters and the structure of graphs of the studied networks.
Method for designing drop-of-wire recognition systems on sections of undistorted two-wire power transmission lines
Authors: Asanova S M , Ahyoev J S , Askarbek N , Suerkulov S M , Asanova D U , Safaraliev M Kh 
Published: November 2020

Abstract
In this work a general statement of the problem of designing distributive electrical systems that recognize breakage of wires on sections of power lines using a multifunctional wire with an isolated residential wire is formulated. The use of overhead wires with the proposed construction of the housing will make it possible to solve many electrical problems very easily and cheaply without the use of expensive equipment. The correspondence table of the information current values of the power supply unit I
0 and of the wire breakdowns on the sections in the two-wire transmission line is obtained by simulation. The proposed method of diagnostics and monitoring of the state of power lines is not expensive and allows the maintenance staff, being at the substation, to detect rapidly and remotely the breakage of wires on the parts of the network and the distance to it, In order to ensure that the repair crew is sent to the exact location of the damage, this will improve the reliability of the electrical supply to consumers. This is achieved by the fact that the information wire has an independent power supply and thus allows for control of the network at any time.
Automation of movement control for modern main tank T-90
Authors: Badrtdinov M A , Yudincev D V 
Published: November 2020

Abstract
The article discusses the option of creating an automated system for controlling the movement of a modern main T-90 tank. In order to emphasize the importance of such modernization, we turn to the history of creating domestic robotic complexes. Among them are known ‘Alisa’ on the base of T-72 tank, intended for experimental development of technologies of remote and autonomous control of objects of armored vehicles, or robot-sapper ‘Prohod-1’ on the base of armored demining machine BMR-3M ‘Vepr’. The analysis revealed the absence of a robotic complex based on the main modern tank. With the purpose of finding the ways of creating a modern unmanned model, a patent search was conducted and foreign military equipment samples were examined. The result is a proposal of modernization of the main tank T-90, which involves equipping the serial chassis with a special apparatus that ensures remote control of the model and autonomous solution of individual problems with the model. The proposed crew-free control system comprises an on-board computer, a plate with proportional electromagnetic valves, motor reduction gears, various sensors, and also the replacement of standard driver-driven controls with electronic ones.
Using of polymeric materials to defeat of lightly armored and easily vulnerable targets. Theory and experiments
Authors: Khmelnikov E A , Smagin K V , Zavodova T E 
Published: November 2020

Abstract
Small caliber artillery plays an important role in the destruction of lightly armored and easily vulnerable equipment. Currently, a search is underway to increase its damaging effect. The article deals with the possibility of increasing the damaging effects of small-caliber artillery ammunition in the fuel tanks of aircraft and helicopters. The physicochemical properties of fluoropolymer materials are considered. The process of thermodynamic decomposition of a fluoropolymer is considered. The results of experiments on the interaction of fluoroplastic and aluminum / titanium alloys are analyzed. Pictures of changes in the titanium wet structure under the impact of ammunition including fluoroplastic are shown. The Ballistic Stand installation was designed to evaluate the incendiary effect of fluoropolymer materials. Several possible designs of projectiles containing fluoroplastic are selected to evaluate their structural characteristics for incendiary effect. A comparison of the results of the calculation of the probability of the incendiary effect of strikers based on fluoropolymers on diesel fuel was made.
Developing manufacturing execution system with predictive analysis
Authors: Potekhin V V , Bahrami AH , Katalinič B 
Published: November 2020

Abstract
Digitalisation is currently developing in many sectors of the economy. The success of a manufacturing enterprise requires a transition to digital control of production and business processes, to the greatest extent possible without human intervention using artificial intelligence technologies. This research applies a Manufacturing Execution System (MES) with Predictive Analysis to an automatic production line (Chemical Line) which contains sensors, actuators and pumps controlled by four Programmable Logic Controllers, linked together, and being monitored through a Supervisory Control and Data Acquisition system. The production line composed of four different subsystems, responsible for filtration to bottling the chemical product. This paper tries to join the MES system with Artificial Neural Networks (ANN) in order to not only monitor the system but having predictive analysis to plan the future. In such way we will take advantage of the benefits of the ANN, such as Long-Short Term Memory architectures. The experimental data will be compared with other usual platforms, such as the Master SCADA itself, through the course of this research.
Epistemic responsibility of industrial enterprise engineer
Authors: Ignatova N U 
Published: November 2020

Abstract
The concept of epistemic responsibility of an industrial enterprise engineer is introduced. The concept of an engineer’s epistemic responsibility is inspired by a situation of epistemic distrust in which the engineer finds himself as an expert. The definition of ‘epistemic’ in relation to the word ‘responsibility’ allows asking a question, what are the characteristics of the knowledge with which the engineer substantiates decision-making. For the first time in the domestic philosophy of engineering, epistemic duties of an engineer of an industrial enterprise are formulated: the duty of due diligence and epistemic zeal. The general epistemological attitude of an engineer in an extreme situation is skepticism. The author claims that the role of anomalous evidence in establishing the truth is an epistemologically difficult problem in investigating an extreme situation. In an extreme situation, the engineer’s epistemic responsibility is embodied in the following: to prevent self-deception and potentially unintentional deception of others in relation to the engineering solution; do not mislead workers who do not have the proper epistemic experience and do not allow them to be mistaken; take into account abnormal or seemingly questionable information and consider it properly.