ISSN 1991-2927
 

ACP № 2 (56) 2019

'Automation of Control Processes' # 4 (42) 2015

Contents
AUTOMATED CONTROL SYSTEMS

Eduard Dmitrievich Pavlygin, Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’, Candidate of Engineering; graduated from the Faculty of Radioengineering at Ulyanovsk Polytechnic Institute; First Deputy Director General for Scientific Affair at Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’; an author of articles in the field of statistical methods for signal processing. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]E. Pavlygin,

Andrei Sergeevich Korsunskii, Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’, Candidate of Engineering; graduated from the Faculty of Radio-Communications at Ulyanovsk Branch of the Military Communications University; finished his post-graduate studies at the S.M. Budenny Military Academy of Communications; Chief Specialist at FRPC JSC ’RPA ’Mars’; an author of articles and inventions in the field of radioelectronics protection, communications, and information security as well as data transmission through wireless communication channels in information telecommunication systems. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]A. Korsunskii,

Anatolii Aleksandrovich Kupryiyanov, retired, Candidate of Engineering, Associate Professor; graduated from the Faculty of Radioengineering at Ulyanovsk Polytechnic Institute; interested in the methodology for design and creation of distributed computer systems; an author of a monograph, articles, and other scientific papers in the field of development and design of local and corporate networks, complexes of automation tools and automated control systems of special and general purpose. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]A. Kupryiyanov,

Anatolii Stepanovich Melnichenko, Ulyanovsk State University, Senior Teacher of the Basic Department of Information Technologies and Information Security at Ulyanovsk State University; Chief Specialist at FRPC JSC ’RPA ’Mars’; interested in intelligence systems and program engineering; an author of scientific papers and articles in the field of development and design of expert systems and automation tool complexes. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]A. Melnichenko

Fcmi-approach to Testing Interoperability of Integrated Combat Management System 000_1.pdf

Integrated ship combat management system as a complex open system represents a composition of components that use internal and external communication facilities intended for prescribed functions implementation. Interoperability is the one of complex system characteristics, i.e. an ability of one or two information systems or its components to exchange information and use the information received as a result of exchange [GOST R 55062-2012. Information Technologies. Industrial Automation Systems and Integration. Interoperability. Basic Principles]. The subsystems being included into the interoperability system work with the use of independent algorithms. These subsystems do not have a unified control point. The whole control is determined by a unified standard set that is interoperability profile. The interoperability of systems of different classes and purposes is testing with a variety of characteristics that determine the system attribute directly and indirectly. The article presents FCMI-approach to evaluation of integrated ship combat management system interoperability on the basis of the fuzzy cognitive model with fuzzy logic tools in MATLAB environment. The proposed approach assists the analysis and decision-making in not completely determined situations. The basis of the approach lies in modelling expert perceptions on testing interoperability of integrated ship combat management systems. Integrated ship combat management system as a complex open system represents a composition of components that use internal and external communication facilities intended for prescribed functions implementation.

Fcmi-подход, integrated ship combat management system, interoperability, cognitive model, hierarchy analysis method, fuzzy knowledge base, fuzzy cognitive map, fuzzy logic inference, fcmi-approach.

Aleksandr Kupriianovich Ivanov, Federal Research-and-Production Center Joint Stock Company ‘Research and Production Association ‘Mars’, Doctor of Engineering, Honoured Worker of Science and Engineering of the Ulyanovsk Region; graduated from the Faculty of Physics at Irkutsk State University; completed his post-graduate studies at Bauman Moscow Higher Technical School and his doctoral studies at Ulyanovsk State Technical University; Chief Staff Scientist at Federal Research-and-Production Center Joint Stock Company ‘Research and Production Association ‘Mars’; an author of monographs, articles, and a manual in the field of mathematical modeling of hierarchical real-time computer-aided control systems. [e-mail: mars@mv.ru]A. Ivanov

Differential Models of Information Processing in Hierarhical Computer-aided Control System Authorities 000_2.pdf

The analysis of information processing in hierarchical computer-aided control system authorities is the foundation on which the differential reporting situation and planning models have been constructed. The model of situation report represents heterogeneous differential equation of degree one with constant coefficients and describes the speed of creating output information resources by processing input data originating from subordinate bodies. The equation is solved by applying the method of indefinite coefficients. The analytical results for one, two, and three information sources have been obtained. The planning model represents inhomogeneous combined differential equations with constant coefficients. The combined equations describe the speed of creating routine documents by authorities for subordinate bodies. The solution can be found by applying the method of variation of fundamental system constants. The analytical results for two subordinate bodies have been obtained. The results of calculating output data amount in situation report depending on time and the amount of input data from two or three subordinate bodies were given. The parameters of the differential equation solution for four subordinate bodies have been calculated.

Mathematical modeling, information resources, control systems, differential equations.

Gennadii Petrovich Tokmakov, Federal Research-and-Production Center Joint Stock Company ‘Researchand-Production Association ‘Mars’, Doctor of Engineering; graduated from the Faculty of Radioengineering of Ulyanovsk Polytechnic Institute; Chief Staff Scientist at Federal Research-and-Production Center Joint Stock Company ‘Researchand-Production Association ‘Mars’; Professor of the Department of Computer Engineering at Ulyanovsk State Technical University; an author of a monograph, textbooks, articles, and inventions in the field of data model and intelligence systems development. [e-mail: mars@mv.ru]G. Tokmakov

Presentation and Processing of Information Resources in Automated System Control Functions. the User Interface Level Formalization 000_3.pdf

The article is the third in a series dedicated to the presentation and processing of information resources (IR) in automated system control functions (ASCF), realized in the form of the three-tier-structure. In the first article, formalized and unformalized components of control functions were brought out and the unification problem of program modules providing access to IR were set up. In the second article, devoted to application level unification (or, strictly speaking, one of its component called database application (DBA)), authors propose to replace DBA set by the one unified. The solution of the problem is described on the user interface (UI) level realizing visualization of logic data used on the application level. As this takes place, it is suggested to guide by the problem statement formulated in the first article in a series with the use of approaches realized in the second one. In accordance with the statement, the UI level formalization is based on the declarative representation of both control elements (CE) realizing the IR structure element visualization and the UI generation algorithm. For reasons of the UI level unification, authors propose to store the representation in metadatabase fix structures as it has been realized in the process of the application level formalization.

Control function, application level, user interface level, meta-database, user interface unification, set of visualization parameters, program code template, program code synthesis.

Anatolii Iurevich Runeev, Rubin Research Institute OJSC, Doctor of Military Sciences, Professor, Honored Worker of Science of the Russian Federation, Director General of Rubin Research Institute OJSC; graduated from Military Academy of Communications; an author of articles, monographs, and inventions in the field of the analysis and synthesis of information systems. [e-mail: inforubin@rubin-spb.ru]A. Runeev,

Vladimir Aleksandrovich Baboshin, Rubin Research Institute OJSC, Candidate of Engineering, Associate Professor; graduated from Ulyanovsk Higher Military Command College of Communications, Head of the Department of Rubin Research Institute OJSC; an author of articles and inventions in the field of the analysis and synthesis of information systems. [e-mail: boboberst@mail.ru]V. Baboshin,

Iurii Mikhailovich Sherstyuk, Rubin Research Institute OJSC, Doctor of Engineering, Associate Professor; graduated from Leningrad Higher Military Engineering School of Communications; Deputy Director General of Rubin Research Institute OJSC on software design; an author of articles, monographs, and inventions in the field of the analysis and synthesis of information systems. [e-mail: inforubin@rubin-spb.ru]I. Sherstyuk,

Aleksandr Viktorovich Shestakov, Rubin Research Institute OJSC, Candidate of Engineering; graduated from Leningrad Higher Military Engineering School of Communications; First Deputy Director General of Rubin Research Institute OJSC, Deputy Director General of Rubin Research Institute OJSC for Scientific and Research Affairs, Senior Researcher; an author of articles, inventions in the field of the analysis and synthesis of information systems. [e-mail: inforubin@rubin-spb.ru]A. Shestakov

Using Industrial Technologies for the Purpose of Designinig Automated Communications Control Systems 000_4.pdf

The article considers the use of industrial technologies in the process of designing modern hardware-software complexes of automated control systems (ACS) in the context of creating Integrated Information Space of the Russian Federation as network-oriented united information space built on the basis of robust combined high-performance network. The article also covers the basic information about designing special-purpose infocommunication systems and problems that have to be treated through the use of ACS. The authors attempted the analysis of the existing control system disadvantages and made the conclusion about the necessity of solving the unification problem of multi-purpose domestic ACS based on proprietary principles of organization. The article presents the certain features of unified platform solutions (UPS). UPS are defined as fundamentals for the development of infocommunication systems on the basis of unified technical platform development practical experience in the process of special-purpose ACS creation with the use of the products unification principle. The principle consists in the optimization of possible particular (individual) solutions variety in the context of general properties and characteristics leading the product and its execution to the integrated system of standard constructions. The methodology of determining the minimum number of resources in UPS of a varying configuration is given. It is shown that with the use of this methodology a set of solutions with varying configuration can be generated. The set forms the basis for a unified platform of special-purpose equipment series.

Integrated information space, data management, infocommunication system, automated control system, automated information systems, industrial technology, unified technical platform, modularity, unification.

INFORMATION SYSTEMS

Aleksandr Nikolaevich Afanasiev, Ulyanovsk State Technical University, Doctor of Engineering, Professor at the Department of Computer Engineering of Ulyanovsk State Technical University; an author of more than 200 articles in the field of CAD; interested in the field of automated training systems, computational process and computer structure organization, intelligent system design, CAD, composite workflow control, graphical language diagrammatics. [e-mail: a.afanasev@ulstu.ru]A. Afanasiev,

Nikolai Nikolaevich Voyt, Ulyanovsk State Technical University, Candidate of Engineering, Associate Professor at the Department of Computer Engineering of Ulyanovsk State Technical University; an author of more than 138 articles in the field of intelligent CAD systems, CASE and CALS technologies; interested in the field of intelligent systems for complex computer-aided system design, automated training environments, graphical languages and the grammar of graphics, distributed systems. [e-mail: n.voit@ulstu.ru]N. Voyt

Intelligent Agent System for Analyzing Design Workflow Models 000_5.pdf

Business process and workflows of project organization represent diagrams as Buisness Process Model Language (BPML), Unified Model Language (UML), Architecture of Integrated Information Systems (ARIS), Integration Definition Metodology (IDEF0 и IDEF3), which may contain errors made by a designer. In order to check that errors we developed a new grammar (called RVM-grammar) that allows us to increase quality of business process management and workflow systems by 20% oppositely with a reserved graph grammar, a positional grammar, and a relational grammar. Thus, we propose an intelligent agent system based on RVM-grammar to analyze business-process models for manufacturing. The system has linear time in order to facilitate the automatically identification of a variety of syntax and semantical errors in workflow models, which enables the analysis of four additional types of errors. In order to consider the distributed dynamic character of business processes, the authors proposed a new intelligent agent system based on the RVM-grammar and analyzing models of business processes with line timetable conformity that extends evaluation precision of syntax and semantic errors in the models of design work flows.

Agent systems, the grammar of graphics, business processes.

Mikhail Seregeevich Ermakov, Federal Research and Production Center Joint Stock Company ‘RPA ‘Mars’, Candidate of Physics and Mathematics; graduated from the Faculty of Physics and High Technology Engineering of Ulyanovsk State University; Engineer at Federal Research and Production Center Joint Stock Company ‘RPA ‘Mars’; specializes in the field of creation and development of automated measuring systems, analysis and processing of measurements; an author of articles and publications in the field of semiconductor devices analysis. [e-mail: ermakov@pisem.net]M. Ermakov,

Vladimir Ivanovich Pavlov, Federal Research-and-Production Center Joint Stock Company ‘RPA ‘Mars’, graduated from the Faculty of Calculus Mathematics and Cybernetics of Lobachevski State University; Deputy Head of the Bench Technological Сomplex of Federal Research-and-Production Center Joint Stock Company ‘RPA ‘Mars’; specializes in the field of justification of creation and development of ship's automated systems for civilian use; an author of articles and papers in the subject area. [e-mail: mars@mv.ru]V. Pavlov

Developing Algoritm of Interaction Between the System for Cargo Condition Monitoring and the System of Cargo Hold Drainage for Prevention of Cargo Liquefying 000_6.pdf

One of the reasons of fleet averages is the inadequate or even missing control system for cargo and gas air environment monitoring in cargo spaces of different-classes ships during the voyage. The main factors to ensure the safety of goods during carriage by sea are heat and humidity transportation regime and ventilation one. The algorithm of interaction between the system for cargo condition monitoring and the system of cargo hold drainage for prevention of cargo liquefying is considered in the article. The variants of systems interfacing are also analyzed. The developed algorithm of integration and analyzed variants of interfacing of these systems allow constructing the control and monitoring system of cargo state in the hold of bulk dry-cargo ship. The exploit of the integrated system should improve the control of cargo condition by the crew and give the opportunity to control and maintain necessary dry and humidity characteristics of hold air and gas environment. It should enhance safety carriage of bulk cargo on dry-cargo ships.

Carriage by sea, monitoring system, system of hold drainage, automation.

Aleksei Aleksandrovich Filippov, Ulyanovsk State Technical University, Candidate of Engineering; Associate Professor at the Department of Information Systems at Ulyanovsk State Technical University; graduated from the Faculty Information Systems and Technologies of Ulyanovsk State Technical University; an author of articles in the field of intelligent systems for data storage and processing. [e-mail: al.fillipov@ulstu.ru ]A. Filippov,

Denis Olegovich Shalaev, Ulyanovsk State Technical University, Candidate for the Master’s Degree at the Department of Information Systems of Ulyanovsk State Technical University; graduated from the Faculty of Information Systems and Technologies of Ulyanovsk State Technical University and got the Bachelor’s Degree in 2015; an author of articles in the field of intelligent systems of data storage and processing. [e-mail: melges@post.ru]D. Shalaev,

Viacheslav Vladimirovich Sherkunov, Ulyanovsk State Technical University, Post-graduate Student at the Department of Information Systems at Ulyanovsk State Technical University; graduated from the Faculty graduated from the Faculty of Information Systems and Technologies of Ulyanovsk State Technical University; an author of articles in the field of intelligent systems of data storage and processing. [e-mail: al.filippov@ulstu.ru]V. Sherkunov

The Implementation of Web-oriented System of Formation of Navigation Structure of Electronic Archive for Technical Documentation on the Basis of Ontological Models 000_7.pdf

The article considers a description and experimental results of web-oriented system of formation of electronic archive (EA) for technical documentation (TD) on the basis of ontological models. Preliminary indexing of documents is realized for the purpose of receiving ontological views. Subject area ontology of design organization is represented in OWL files. The main functions of the system include receipt and storage TD ontological representations, formation of EA navigation structure with the purpose of searching numerous documents similar to the certain document (of interest to the designer ) in semantics. In order to store the subject area ontology and TD ontological representations, the graph database Neo4j is used. The interaction with OWL format is executed through the use of OWL API library. The system is implemented on the basis of Java Enterprise Edition platform.

Intelligent system, structuring, ontology, navigation structure, electronic archive, technical documentation.

Tatiana Vasilievna Afanaseva, Ulyanovsk State Technical University, Doctor of Engineering; Associate Professor, Deputy Head of Information System Department at Ulyanovsk State Technical University; graduated from the Faculty of Radioengineering at Ulyanovsk State Technical University; an author of articles and monographs in the field of the intellectual analysis of time series. [e-mail: tv.afanasjeva@gmail.com]T. Afanaseva,

Aleksei Andreevich Sapunkov, Ulyanovsk State Technical University, Post-graduate Student of the Information System Department at Ulyanovsk State Technical University; graduated from the Faculty of Information Systems and Technologies at Ulyanovsk State Technical University; an author of articles in the field of the intellectual analysis of time series. [e-mail: sapalks@gmail.com]A. Sapunkov,

Mkrtych Sarkisovich Tonerian, Ulyanovsk State Technical University, Post-graduate Student of the Information System Department at Ulyanovsk State Technical University; graduated from the Faculty of Information Systems and Technologies at Ulyanovsk State Technical University; an author of articles in the field of the intellectual analysis of time series. [e-mail: mkr73@yandex.ru]M. Tonerian

The Two-stage Algorithm of Choosing the Fuzzy Model for Time Series Firecasting 000_8.pdf

The article deals with a two-stage algorithm for the best time-series forecasting model based on the assessment of the model adequacy with the use of behavior and accuracy. For testing, the authors use time series that have been exploited at the International Time Series Forecasting Competition IFAS-EUSLAT in 2015 ([http://irafm.osu.cz/cif/main.php]). Database of this Competition includes 91 numerical time series of different length, tendency, and data reading frequency. Time series values depicted the dynamic of parameters reported from banking area, social networks, and medicine. Three models based on the fuzzy time series concept have been used for time-series forecasting. In order to choose the best model, the two-stage algorithm based on the comparison of time series and model tendencies has been proposed. In addition to the already known quality criterion, the new ones are also exploited in the algorithm. In the conclusion, the results obtained are discussed and the effectiveness of the suggested algorithm is demonstrated.

Fuzzy tendency, fuzzy time series, forecasting, linguistic description.

MATHEMATICAL MODELING

Aleksandr Sergeevich Andreev, Ulyanovsk State University, Doctor of Physics and Mathematics, Professor; graduated from the Faculty of Mechanics and Mathematics of Tashkent State University; Head of the Faculty of Mathematics, Information and Aviation Technologies at Ulyanovsk State University; Head of the Department of Information Security and Control Theory; an author of papers, textbooks, and a monograph in the field of stability theory and the motion control of mechanical systems. [e-mail: AndreevAS@ulsu.ru]A. Andreev,

Olga Alekseevna Peregudova, Ulyanovsk State University, Doctor of Physics and Mathematics, Associate Professor; graduated from the Faculty of Mechanics and Mathematics at Ulyanovsk State University; Professor at the Department of Information Security and Control Theory of Ulyanovsk State University; an author of articles, textbooks, and a monograph in the field of stability theory and the motion control of mechanical systems. [e-mail: peregudovaoa@sv.ulsu.ru]O. Peregudova

Two-link Manipulator Control Synthesis Without Velocity Measuring 000_9.pdf

The paper investigates the way to treat the problem of two-link manipulator program motion stabilization without velocity measuring. Most familiar strategies for mechanical system motion control including robot manipulators are based on the assumption that both coordinates and velocities of the mechanical system are available to measure. However, certain difficulties relating to practical application arise. These difficulties include, for example, inability of the velocity sensors installation due to various constraints. Another difficulty is connected with the fact that the operation of these sensors involves the problem of noise occurrence and, in consequence, the accuracy of the control problem solution can be decreased. The main approaches to the control problem of mechanical systems (such as manipulators) without measuring velocities apply approximate differentiation of the system coordinates as well as observer construction. These approaches are not fully developed for the problem of non-local stabilization of the manipulator non-stationary program motions because of such difficulties like non-linearity and non-stationarity of the system. The article provides the method of piecewise non-linear continuous control synthesis on the basis of both the construction of the observer and the application of the Lyapunov vector functions method. The novelty of the results consists in constructing the observer which dimension is smaller than the dimension of the system by a factor of two in order to solve the stabilization problem of a wide class of manipulator non-stationary motions without system linearization. The article presents the results of numerical simulation that prove obtained theoretical results.

Two-link manipulator, stabilization, program motion, control law without measuring velocity, comparison system, lyapunov vector function.

Kadyrova Gulnara Rivalevna, Ulyanovsk State Technical University, Candidate of Engineering; graduated from the Faculty of Radioengineering of Ulyanovsk Polytechnic Institute; Associate Professor of the Department of Applied Mathematics and Informatics of Ulyanovsk State Technical University; an author of monographs, textbooks, and articles in the field of statistical modeling, software information systems. [e-mail: gulya@ulstu.ru] G.R. Kadyrova

Evaluation and Prediction of Technical Object Condition With the Use of Regression Models 000_10.pdf

The article presents information about the System of Optimum Regression Search (SORS) statistical package realizing the approach of adaptive regression modelling and providing an evaluation of the observation model adequacy and search of its optimal structure. The methodology means reduction of the model dimension and increase of determination accuracy of its parameters and the forecast. Efficiency of the methodology is directly proportional to dimension, the degree of noisiness, and multicollinearity of the initial data. Consequently, it allows considering its application for the description of technical objects conditions as perspective mathematical approach. One of the tasks in data analysis is the problem of choice of a comparison measure for the competitive models. The use of internal quality measures for smaller dimension models intended for forecasting cannot always give as authentic view of a particular competitive structure that is preferable as possible. The article investigates properties of the cross validation measure that is based on the complete sample of data and uses it as control data sample for familiar internal and external measures. The prospect of its application for identification of the forecasting optimal model within SORS is demonstrated in the article.

Regression modelling, forecasting, methods of structural identification, quality measure, sors, statistical package.

Maria Mikhailovna Dubinina, Design-Theoretical Department at Ulyanovsk Instrument Manufacturing Design Bureau (UIMDB) Joint-Stock Company, Post-graduate Student of the Department of Measuring and Computing Complexes; got the Master’s Degree in Instrument Engineering of Ulyanovsk State Technical University; a design-engineer of the Design-Theoretical Department at Ulyanovsk Instrument Manufacturing Design Bureau (UIMDB) Joint-Stock Company; an author of articles and inventions in the field of sensors for pressure perception of aircraft aerometric systems. [e-mail: masha_dubinina.73@mail.ru]M. Dubinina,

Mikhail Iurievich Sorokin, Ulyanovsk Instrument Manufacturing Design Bureau (UIMDB) Joint-Stock Company, Candidate of Engineering, Associate Professor at the Department of Measuring and Computing Complexes; graduated from the Faculty of Information Systems and Technologies of Ulyanovsk State Technical University; Head of a department at Ulyanovsk Instrument Manufacturing Design Bureau (UIMDB) Joint-Stock Company; an author of articles and inventions in the field of sensors for pressure perception of aircraft aerometric systems. [e-mail: rto@ukbp.ru]M. Sorokin

A Mathematical Model of Pressure Traverse of a Pitot-static System Cross Section 000_11.pdf

The article considers the results of researching pitot-static systems. The authors have been created mathematical model of pressure traverse of a pitot-static system cross-section. The model has shown that shifting the arrangements of static pressure tap holes along the receiver length has no effect on pressure distribution over the receiver surface essentially. From the results of mathematical modelling, the authors have obtained the data array for a model of a pitot-static system in order to detect surface pressure. The method of pressure perception compensation on the basis of mass balance has been suggested. Due to this, improvement of static pressure perception accuracy can be provided not only by shifting the arrangements of static pressure tap holes along the receiver cross section perimeter but also by changing the diameter of holes. This can eventually help to achieve required characteristics of static pressure perception of a chamfer angle and incident flow speed.

Mathematical modelling, pitot-static system, pressure traverse, air consumption.

Aleksandr Nikolaevich Zolotov, Post-graduate Student at the Department of Heat-and-Power Engineering of Ulyanovsk State Technical University; graduated from Ulyanovsk State Technical University; graduated from Ulyanovsk State Technical University; an author of articles in the field of the numerical modeling of gas-dynamic processes. [e-mail: anzolotov@bk.ru]A. Zolotov,

Vladislav Nikolaevich Kovalnogov, Ulyanovsk State Technical University, Doctor of Engineering, Head of the Department of Heat-and-Power Engineering of Ulyanovsk State Technical University; an author of articles, monographs, and inventions in the field of simulation, research, and optimization of thermal and gas-dynamic processes in power installations and processing equipment. [e-mail: kvn@ulstu.ru]V. Kovalnogov,

Maria Igorevna Kornilova, Ulyanovsk State Technical University, a second-year student of Ulyanovsk State Technical University; an author of articles in the field of the numerical modeling of gas-dynamic processes. [e-mail: masha.kornilova.1995@mail.ru]M. Kornilova

Modeling and Researching the Technique of Thermal Protection of Turbomachines Blades With the Use of Gas-dynamic Temperature Stratification 000_12.pdf

Raising the initial temperature and pressure of the working fluid is one of the simplest and most effective ways of improving fuel efficiency and reducing metal consumption of turbines. Traditional technology of turbine blades production is quite cost and time consuming in production. Therefore, their creation requires the use of mathematical models which serve as a tool for analysis, improvement and selecting the most promising solutions of the refrigeration and increase of the prediction accuracy at the design stage of their effectiveness. Mathematical modeling of the thermal state is widely used in the creation of modern gas turbines [1]. An important objective is the numerical simulation of the spatial flow of the heat transfer in subsonic and transonic lattices. In order to create effective ways of thermal protection, it is necessary to know the distribution of nonstationary temperature fields on the surface and in the body of the scapula. For this purpose, the heat flows from the gas to the blades must be accurately determined taking into account the impact of the mode of flow, thermals, pressure gradient, and other factors [2]. In the paper, the proposed mathematical model and method of numerical investigation of the thermal state of blades of turbomachines streamlined by a supersonic dispersed flow with regard to the phenomenon of gas-dynamic temperature stratification was proposed. With the aim to increase the accuracy of the settlement prediction of the thermal state of blades due to obtaining reliable data as well as improve the efficiency of cooling systems to increase the service life of the blades, the authors have developed the program-informational complex which will take into account the results of studies of gas-dynamic processes in high- speed, disperse flows including the phenomenon of gas-dynamic temperature stratification carried out at the Department of Heat Power Engineering at Ulyanovsk State Technical University.

Mathematical modeling, numerical methods, thermal protection, convective-film cooling, software and information complex, dispersed flow, gas-dynamic temperature stratification.

Vladislav Nikolaevich Kovalnogov, Doctor of Engineering, Head of the Department of Heat Power Engineering of Ulyanovsk State Technical University; an author of articles, monographs, and inventions in the field of simulation, research, and optimization of thermal and hydro-gas-dynamic processes in power installations and processing equipment. [e-mail: kvn@ulstu.ru]V. Kovalnogov,

Ruslan Vladimirovich Fedorov, Ulyanovsk State Technical University, Candidate of Engineering, Associate Professor at the Department of Heat Power Engineering of Ulyanovsk State Technical University; an author of articles and inventions in the field of numerical modeling the hydro-gas-dynamic processes. [e-mail: r.fedorov@ulstu.ru]R. Fedorov,

Larisa Valerievna Khakhaleva, Ulyanovsk State Technical University, Candidate of Engineering, Associate Professor at the De-partment of Heat Power Engineering of Ulyanovsk State Technical University; an author of articles and inventions in the field of numerical modeling the hydro-gas-dynamic processes. [e-mail: larvall@mail.ru]L. Khakhaleva,

Andrei Valentinovich Chukalin, Ulyanovsk State Technical University, Post-graduate Student at the Department of Heat Power Engineering of Ulyanovsk State Technical University; an author of articles and inventions in the field of numerical modeling the hydro-gasdynamic processes. [e-mail: chukalin.andrej@mail.ru]A. Chukalin

Mathematical Modeling and Numerical Analysis of Flow Laminarization in a Perforated Tube With Damping Cavities 000_13.pdf

The authors have experimentally established the possibility of the partial turbulent flow laminarization in a perforated tube with damping cavities which leads to reduction of up to 35% of frictional resistance. The effect of the number of perforations in the damping cavity on the velocity profile and the frictional resistance has been revealed. The model of turbulent transfer in a boundary layer near the perforated surface with damping cavities and the method of calculating the flow pattern and frictional resistance were proposed. Flow laminarization manifested itself as the decrease of turbulent transfer intensity in the boundary layer due to external or internal influences plays an important role in engineering. Apparently, for the first time the possibility of a reverse transition of a turbulent flow in a laminarization one under the influence of a negative longitudinal pressure gradient was noted in the article [1]. Further researches overviewed in the paper [2] have demonstrated that laminarization in flows with negative longitudinal pressure gradient is accompanied by a substantial (up to 35 ... 50%) decrease of the intensity of heat and a simultaneous increase in the frictional resistance. The model of laminarization in the streams with different influences proposed in the paper [2] has allowed to predict the possibility of its implementation and anear perforated surface with damping cavities. As this takes place, in contrast to the laminarization under the influence of a negative longitudinal pressure gradient there must be a reduction of both the intensity of heat transfer and friction resistance. The purposes of this work are experimental investigation of frictional resistance in the perforated tube with damping cavities with a different number of perforations, the development of turbulent transfer process models and the calculation method of friction resistance.

Perforated pipe, a damping cavity, turbulent transfer, mathematical modeling, friction resistance.

ELECTRICAL ENGINEERING AND ELECTRONICS

Aleksandr Vladimirovich Ulyanov, Department of GSiIT of "ER-Telecom Holding" Ulyanovsk Branch, Head of the Department of GSiIT of "ER-Telecom Holding" Ulyanovsk Branch; graduated from the Faculty of Radioengineering at Ulyanovsk State Technical University; finished his post-graduate study at the Department of Radioengineering at Ulyanovsk State Technical University; an author of articles in the field of methods and tools for measuring the parameters of elements and devices of micro and optoelectronics, automation of measurement processes. [e-mail: ulyanov_a@bk.ru]A. Ulyanov,

Viacheslav Andreevich Sergeev, Ulyanovsk Branch of Kotel’nikov Institute of Radioengineering and Electronics (IRE) of RAS, Doctor of Engineering, Associate Professor; graduated from the Faculty of Physics at Lobachevsky State University; Head of Ulyanovsk Branch of Kotel’nikov Institute of Radioengineering and Electronics (IRE) of RAS. monographs; an author of monographs, inventions, and articles in the field of researching and simulating semiconductor device and integrated circuit performance, and measuring their thermal characteristics. [e-mail: sva@ulstu.ru]V. Sergeev,

Viktor Nikolaevich Rogov, Ulyanovsk State Technical University, Candidate of Engineering, Professor, Head of the Faculty of RadioEngineering of Ulyanovsk State Technical University; graduated from Ulyanovsk Polytechnic Institute; an author of articles and inventions in the field of parameters measurement of electrical noise, optical signals, colorimetry. [e-mail: rvn@ulstu.ru]V. Rogov

Methods and Means of Operational Control of Narrow-band Optical Radiation Spectrum Parameters 000_14.pdf

A brief analysis of the well-known means of operational control parameters of optical radiation spectrum as well as the application of these means has been submitted. It is shown that the main trend of development of spectral analysis means is to improve their performance. A method for measuring the parameters of a narrow-band spectrum of optical radiation in two photodetectors with predetermined spectral characteristics described by a Gaussian function with different wavelengths at the maximum bandwidth has been described. The possibility of operational determination of both the central wavelength of the emission spectrum and the spectral width with the use of the proposed method has been shown. The proposed method can improve performance of monitoring and control sources of optical radiation. The functional scheme and the main characteristics of the experimental prototype device based on the proposed method have been shown. It is experimentally demonstrated that the possibility of application of the developed embodiment of the device for determining the thermal properties of LEDs based on the emission spectrum shift as a result of self-heating of the LED operating current. The results of the testing methodology for measuring thermal properties of LEDs with the use of several samples of serial devices have been obtained.

Emission spectrum, parameters, measurement, photodetector.

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