bluuebunny/crossref_metadata_2025_split huggingface dataset:
Automated control system of electric drive with doubly fed induction motor
Authors: Avlasko P V , Bronov S A , Antonenko D A , Avlasko Z A 
Published: November 2019

Abstract
The article describes the development of an automated control system for electric drives, which includes a doubly fed induction motor, a digital position sensor and National Instruments equipment, represented by the PXI modular platform and LabVIEW software. The features of the interaction of software and hardware of the electric drive control system are considered. During operation, the system uses various levels of interaction of virtual instruments within one project. Thus, the use of virtual instruments of the project occurs at the level of the personal computer of the workplace, controller and the module with a programmable logic integrated circuit. The method of using a dynamically connected library for the calculation of parameters and state variables of the electric drive in real time is presented.
State-feedback based adaptive control algorithm of the active electromagnetic bearing
Authors: Dymov I S , Kotin D A , Elanakova V A 
Published: November 2019

Abstract
The paper is devoted to the development and investigation of automatic adaptive control system of electric machine rotor radial displacement stabilization with active magnetic bearings. A new approach of solving the problem of stabilizing the rotating element of motor, based on active current updating of the spatial position is offered. The development of automatic control algorithm is done using the Lyapunov function method. The paper describes the way of constructive implementation of this method, structural synthesis methodology of control law, as well as the results of simulation, confirming potential of conducted research. Practical implementation of the developed system will increase the parametric reliability of electrical equipment for various purposes.
Computer-aided detection of the optimal spraying modes of coatings based on intermetallic titanium-aluminum alloys
Authors: Jordan V I , Blednov V A 
Published: November 2019

Abstract
The computational experiments results on simulation of a layered structure formation and the prediction of characteristics (porosity, roughness, adhesion) of metallic coatings based on intermetallic titanium-aluminum alloys (α2-Ti3Al, γ-TiAl and TiAl3) are given. The coatings under conditions typical of atmospheric plasma spraying (APS) and for high-velocity spraying (HVOF, D-Gun Spraying, etc.) by computer-aided design have been prepared. The ranges of the “key physical parameters (KPPs)” values of the sprayed particles, which ensure the stable formation of spreading and solidified melt particles (splats) on the sprayed surface for each of the three types of intermetallic titanium-aluminum coatings, have been detected. Taking into account the stable splat formation conditions, as well as the minimum of porosity (and roughness) and the maximum adhesion strength of the simulated coatings, the optimal spraying modes of coatings based on intermetallic titanium-aluminum alloys (Ti3Al, TiAl and TiAl3) were determined.
Automatic control systems with a synthesis of the transmitting function of single-cycle DC/DC converters
Authors: Myatezh A V , Lukyanova E A , Zhigalov K Yu 
Published: November 2019

Abstract
The article describes the effect of reducing general operating speed of the automatic control system which deteriorates the performance. Synthesis of the response function of the pulse converter was analyzed. The function takes into account the time of a electromagnetic transient process of the single-cycle converter. A mathematical model of the DC/DC converter as part of the element base of an adjustable electric drive was built.
Application of linear programming techniques to optimize the choice of coal and water coal fuel
Authors: Osintsev K V , Prikhodko Iu S 
Published: November 2019

Abstract
It is proposed to put the linear programming method into the basis of the optimization problem of a mathematical economic model of fuel type selection in the boiler house. The linear programming method is used in modern computer programs for calculating various economic models. It is proposed to use graphical or vector methods for solving optimization problems when constructing a mathematical model after analyzing the boiler room operation data. Scientific novelty consists in the fact that for the first time it is proposed to use linear programming methods for an energy technology complex when choosing coal-water fuel based on various coals. Such calculation algorithms allow us to make recommendations to reduce fuel losses during transportation and storage. The solution of the optimization problem of a mathematical economic model can lead to a significant reduction in fuel consumption and an increase in economic efficiency when using energy technology complexes based on coal-water fuel.
Control over parameters of ESCP unit to improve efficiency in bringing wells to stable production using a frequency-controlled drive on R. Trebs oil field
Authors: Suleimanov R I , Khabibullin M Ya , Suleimanov Re I 
Published: November 2019

Abstract
The article deals with the results of technological process of bringing an oil well to stable production; the well is equipped with an electric submersible centrifugal pump unit, its drive function is changed by a frequency-controlled drive. The paper presents data obtained while bringing an oil well to stable production: the liquid flow rate, oil flow rate, operating current, submersible electric motor loading, current frequency, water content of the products. The authors describe the process and specific aspects of bringing an oil well to stable production, conditions necessary for the process, variation of operation parameters. Recommendations were developed to ensure optimal operation of oil wells equipped with electric submersible centrifugal pump units considering technological and economic costs.
Managing the reliability of the tubing string in impulse non-stationary flooding
Authors: Khabibullin M Ya 
Published: November 2019

Abstract
Impulse non-stationary flooding requires managing the processes influencing reliability and durability of the tubing string. In this case, it is necessary to determine the medium displacement for known dimensional parameters and stress fields, while taking into account the dynamic solution for the low-frequency limit. The results obtained from the analysis are compared against the measurements performed by various authors. Assuming there is a certain frequency of injected fluid oscillation or pressure pulses, one could expect that the radial movement is in equilibrium with the pressure existing at any given period of time. As a result, expressions describing the behavior of impulse waves propagating along the pipe wall were obtained. The reflected waves appear in all cases: whether the change in speed is caused by a change in the pipe wall thickness, Young modulus or shear rigidity of the environment. Changes in density or bulk modulus of the injected fluid or in the radius of the wellbore also cause reflected waves; all the waves may be described by a single equation.
Automation of determining the parameters of the asynchronous motor short-circuit mode
Authors: Shevchenko A A , Temlyakova Z S , Vilberger M E , Temlyakov A A 
Published: November 2019

Abstract
The research subjects are asynchronous motors of the type ATM4 in the power range from 400 to 8000 kW produced by NPO “ELSIB” PAO. The article proposes a method for optimizing the calculation of heating parts of the active volume of large asynchronous motors in the short-circuit mode of the engine. The calculation method is based on the fundamental provisions of the theory of electric machines. The purpose of the study is to automate the calculation of heating different parts of the active volume of the motor. The calculation of heating is determined by the need to preserve the operability of the motor in the event of emergency situations in production. The originality of the study lies in the fact that the algorithm for calculating the time to achieve critical heating of various parts of the active volume of the asynchronous motor is modified based on known positions. This provides the correct protection against the effects of thermal overheating. The results of the study are presented on a specific example of the motor.
State and prospects of industrial robotics in shipbuilding
Authors: Novikov A V , Barmin A A , Mudrova A A , Yasinskaya U V 
Published: November 2019

Abstract
The production process of any type of product today is difficult to imagine without the use of industrial robots. Their versatility, production flexibility and wide technological capabilities make them an indispensable tool in modern manufacturing, including in such economically and strategically important industry as shipbuilding. In this regard, according to the authors, it is advisable to analyze the current situation and prospects for the use of robotization in industry, in particular, shipbuilding in Russia and abroad. The article presents statistical data on indicators of the level of robotization of domestic and foreign industry; describes the trends in the development of industry during its robotization, indicates the scope of application of industrial robots, etc. The factors of expediency of using robots in industry are analyzed. The inevitability of the general growth of industrial robotization and, as a result, a change in the economic structure in developed countries and, possibly with a certain lag in Russia has been substantiated. Identified problematic issues associated with the introduction and use of industrial robots in the domestic industry, in particular, shipbuilding.
Thermal imaging complex with tracking function for joint research of microheterogeneous processes and macrokinetics of SHS phenomenon
Authors: Dolmatov A V , Gulyaev P Yu 
Published: November 2019

Abstract
The paper presents the features of the method of chrono-topographical analysis of high-resolution thermal imaging data. Robotic foundations of the organization of a thermal imaging complex with a tracking function and the formation of a single chronographic map of the SHS phenomenon based on the results of temperature observations in several areas are described. It is shown that with the same measurement error of the propagation velocity of a SHS wave, a complex with a tracking function has a greater information power than a thermal imaging system with a single observation area. The approbation of the measuring complex during the investigation of SHS in the model Ni-Al system was performed. A joint analysis of heterogeneous processes revealed a similarity in the character of the propagation of combustion centers along the SHS wave front and the motion of the front itself. Based on the chronographic maps of the SHS process, it was found that there were two types of foci in the reaction wave, which differed in the dynamics of the boundary propagation along the front.
Simulation of the parametrs of the acrylic and specular light pipe for transmitting light radiation of the LED matrix
Authors: Loshkarev I Yu , Sterhov A I , Petrov K A 
Published: November 2019

Abstract
In this article, we simulated the parametrs of an acrylic and specular light pipe to transmit radiation from the LED matrix. The results of the experiment can be estimated using the dependence of the light flux on the number of reflections in the specular light pipe. Evaluation was conducted in the software package “Mathcad”. The possibility of providing illumination from 6 to 30 lx using the system of transportation of artificial light of roads \ streets \ squares depends on the class of the object. The study of the transmission of light through a specular and acrylic light pipe has shown that under equal conditions of light transport (the same power, the same aperture, the equal length of the light pipe, the same diameter of the light pipe), the acrylic fiber has the advantage. Losses using acrylic light pipe of 2000 mm are 24% whereas using specular light pipe they are 45%. However, if there is no limitation in the diameter of the light pipe, then it is preferable to use a specular one. For example, at 150 mm the losses are no more than 13%, which is not achieved with an acrylic light pipe even with a diameter of 10 mm, since when the radiation aperture is kept, a reduction in diameter leads to an increase of the interaction of the radiation with the walls of the acrylic rod and increase of the optical path.
Promising algorithm for diagnosing vehicle ignition coils
Authors: Myatezh A V , Kochetkova L I , Akifeva E V , Ivanov A V 
Published: November 2019

Abstract
The principle of performance of all elements, and their interconnection are described. A failure in one element causes a failure in the entire system and impossibility of movement. The analysis of key processes was carried out. Conclusions about responsible elements were drawn. An ignition coil that generates high voltage during the spark formation is one of the elements. Its technical state was studied; its regular monitoring was suggested.
Magnetodielectric AC measuring transducer for automation systems in oil refineries
Authors: Fugarov D D , Purchina O A , Poluyan A Yu , Gerasimenko A N , Rasteryaev N V 
Published: November 2019

Abstract
The purpose of the study covers theoretical analysis and mathematical modeling of alternating current measuring transducers based on magnetodielectric cores for automation systems in oil refineries. The paper describes the analytical study of the magnetization curve, creation of the equivalent circuit and thus obtained mathematical model of a transducer, numerical study of the proposed transducer, as well as the contrastive analysis of transducers currently used to measure the current.
The use of vehicle-to-grid technology for the integration of electric vehicles in the power system of the city
Authors: Zhukovskiy Y L , Suslikov P K , Russkih N I , Korolev N.A. 
Published: November 2019

Abstract
This paper analyzes the possibility of using electric vehicles as a controlled distributed generator. Aggregation of demand and supply for electric power with the participation of batteries allows us to solve the problem of the development of the electric grid infrastructure of megacities. The absence in some areas of the city of opportunities for technological connection of consumers and significant deterioration of the network infrastructure is solved by the integration of electric vehicles in the city’s power system. The article shows that information technology allows you to control the energy curve over time. At the same time, the power schedule in the loaded power centers will be deprived of pronounced highs and lows, which favorably affects the loading of generating capacities. Informatization of electric transport and the use of a digital platform will eventually become part of the concept of “smart city”.
Fog computing in new approach for monitoring of hazardous phenomena
Authors: Melnik E V , Orda-Zhigulina M V , Orda-Zhigulina D V , Ivanov D Y , Rodina A A 
Published: November 2019

Abstract
This paper presents an investigation on applying fog computing to develop a new system of forecasting and monitoring of hazardous phenomena and ensuring the population safety. So, there have been various negative natural phenomena and processes that affect the coastal areas and coastal infrastructure in Ponto-Caspian region recently. Currently, data of hydrological, meteorological and biological monitoring systems are splitted. At present one of the promising trends of developing new methods and algorithms for the forecasting and monitoring systems of natural hazardous phenomena is processing of large volumes of unstructured data coming from various sources, detectors and so on. The authors of the paper estimate the developing of the methods and algorithms of forecasting and monitoring of hazardous phenomena and ensuring the population safety that could be realized in the base of fog computing.
Optimal organization of multi-profile production
Authors: Pishchukhin A M , Akhmedyanova G F 
Published: November 2019

Abstract
The effectiveness of the use of modern production equipment to a large extent depends on its workload. However, it is impossible to manufacture only one type of product; therefore, production becomes multi-profile, the role of coordinating it with the market increases. Both the market and the production process are stochastic, so the probabilistic agreement of these two processes on the basis of the Kolmogorov equation in the canonical form is considered. The level of coordination is estimated by the difference in the probability density that the market price for a given product exceeds the level of its production cost using the technology implemented in multi-production. The latter probability density assesses the readiness of technologies for implementation, including the availability of raw materials, materials, energy, serviceable equipment and devices — all of this consumes control resources. The optimal allocation of these control resources in the preparation of technologies can significantly improve production efficiency. Of practical significance is the revealed fact that the dependence of control actions on time is exponential: the value of organizational control resources decreases as it moves away from the moment when demand for this type of product arises. Dependence on demand is logarithmic and the value of organizational control resources increases with increasing demand for this type of product.
Modeling the priority directions of innovative development policy of timber processing complex enterprises based on correlation analysis
Authors: Shanin I I 
Published: November 2019

Abstract
When developing approaches according to innovative development of the timber industry enterprises, it is necessary to consider the strategy of innovative development of the production direction within its spatial and social and economic features. The system of assessment of indicators criteria has to contain the necessary indicators considering all levels of development of the enterprise before its functioning in world economic relationship. In the applied system of assessment of innovative development of the timber industry enterprises the available financial statistics and their updated data obtained on the basis of the offered new approaches to calculations have to be used. Each innovative process has to be in a condition of continuous development. During change of one process, another and some other change, i.e. the processes to some extent are interconnected among themselves. In certain cases ecologic-economic events seldom develop in an individual order, they have to form complexity of processes where the independent impact of each process on others, on degree of their hierarchy comes to light. During research of influence of a number of factors on one productive process, application of the analysis on the basis of a correlation and regression method with creation of the regression equations is possible. In this method interdependence of factors is considered; therefore, influence of each factor on this or that process is represented in more detail. In a correlation and regression method direct influence of a factor on a productive indicator, indirect influence of group of factors and influence of all set of factors on a productive indicator are considered.
The stress-strain state simulation of the aircraft fuselage stretch forming in the ANSYS
Authors: Andrianov I K , Stankevich A V 
Published: November 2019

Abstract
The work is devoted to the study of the stress-strain state of a thin-walled blank in the stretch forming process. The reasons for the occurrence of defects in the process of shaping, in particular ruptures, were investigated in this work. The task of the research was to assess the behavior of the blank in the process of loading, identify areas of unstable forming, zones of non-passing into the plasticity stage, as well as areas in which the strains reach the limit value. The analysis of the current state of the issue of scientific elaboration of the problem of defect-free coating is carried out. A finite element model of the stitching process is constructed, including models of the rigid surface of the punch and the sheet being molded. The loads were simulated using displacements in the longitudinal direction and rotations in the transverse plane of the workpiece sheet. As part of the study, the reasons for the breakdown of the stocking process in the process of stitching in the places where the sheet was clamped with sponges were determined.
Sequential analysis of variants and optimal design techniques for human-machine systems
Authors: Grif M G , Kochetov S A , Ganelina N D 
Published: November 2019

Abstract
The current paper considers automatic design of functioning processes of human-machine systems. The idea of models, methods and techniques that are discussed in the article is based on functional-structural theory and the generalized structural method, which was suggested by prof. A.I. Gubinsky. The process of functioning is presented as a sequence of simple operations - basic functional units, which can be combined into basic functional structures. Efficiency, quality and reliability of the functioning process are considered as local criteria in optimization problems. Basic design strategies for human-machine systems are given: a down-top, top-down approach and their combination. A definition of a system operation process as a notation based on binary relations between elements included in a functional net is presented. A special algorithm to determine whether a functional net defined as a set of binary relations between net elements can be reduced to a superposition of basic functional structures is stated. All alternative processes of operating of a human-machine system are formed by an alternative graph and its traversal ways. A directional search algorithm is applied to finding the optimal solution. It allows building partial solutions step-by-step. For equal (repeated) segments of a functional net the alternative graph is changed and solutions are produced by the specific optimized technique.