Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017)

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148 articles

Method of Calculating Intermediate Diametral Sizes and Allowances for Designing Technology of Manufacture of Details

A.D. Khalimonenko, K.P. Pompeev, D.Yu. Timofeev
The method of calculation of intermediate diametrical sizes and allowances is considered in the article when designing the technology of manufacturing machine parts. This method makes it possible to ensure the quality of manufacturing machine parts by preliminarily determining the adjustment dimensions...

Bird's Eye View Transformation Technique in Photogrammetric Problem of Object Size Measuring at Low-altitude Photography

Ivan S. Kholopov
The paper considers the solution of the photogrammetric problem of measuring the planar objects dimensions with projective distortions that are characteristic for low-altitude photography. It is shown that a bird's eye view transformation technique allows estimating the area occupied by planar objects...

Energy Storage Device Application for Load Oscillations Damping in Isolated Power Systems

Natalya Kiryanova, Gleb Prankevich, Dmitry Baluev, Vyacheslav Zyryanov
In isolated power systems for energy-intensive consumers with changing power consumption, there is a need to investigate how different operating and consumption modes influence the system parameter and quality of electricity. This issue is relevant for power systems, which include energy-intensive consumers...

Symmetry of single-phase loads in four-wire three-phase networks of alternating sinusoidal current

Anatoly Sergeevich Kizurov
To reduce losses in the zero conductor of three-phase alternating current networks, it is proposed to use a switching device made on the basis of semiconductor thyristors, in order to enable the single-phase consumer to be connected to the required phase of power supply in order to reduce asymmetry....

Mathematical modelling of heat accumulator for thermal preparation system of road-building machinery

Vitaliy Valerievich Konev, Oksana Borisovna Krut, Egor Viktorovich Polovnikov, Lyudmila Vasilievna Dolzhikova, Elena Evgenievna Rood'
In the conditions of autonomous functioning of special equipment, there is a need to use its internal sources. This can be accomplished using a heat recovery system of the internal combustion engine. For this purpose, the authors suggest a heat accumulator. The mathematical modelling of the thermal state...

Wind-solar generator

Lev Efimovich Kopelevich, Aleksandr Yakovlevich Kashin, Bogaudin Khamidovich Gaitov, Mikhail Sergeyevich Khristoforov, Polina Vitalievna Sereda
The article considers a wind-solar generator based on special electric machines for power supply of various objects. The subject of this article is a wind-solar generator intended for simultaneous conversion of solar energy (using a photoelectric converter) and wind into electrical energy according to...

Oil Separator

Bogaudin Khamidovich Gaitov, Lev Efimovich Kopelevich, Vladislav Anatolievich Kim, Yakov Mikhajlovich Kashin, Alexander Valeryevich Samorodov, Polina Vitalievna Sereda
The engine-separator of combined design is considered in the article. The subject of this article is temperature field investigation of the engine-separator with a combined design. The purpose of this paper is to review and analyze the application of an oil separation unit based on a separator engine...

Mechanisms and models of control of turbulent transfer in boundary layer

Vladislav N. Kovalnogov, Igor A. Maleshin, Ruslan V. Fedorov, Dmitry V. Suranov, Larisa V. Khakhaleva
The work proposes the model of turbulent transfer in a boundary layer, which reflects the influence of periodic control actions on turbulent transfer factors. It provides the opportunity of reasonable turbulent transfer management. The list of actions, which influence turbulent transfer intensity, is...

Technical solutions for increasing efficiency of gas turbine engines

Vladislav N. Kovalnogov, Dmitry A. Generalov, Ruslan V. Fedorov, Andrey V. Chukalin, Larisa V. Khakhaleva
A method for studying the thermal state of turbomachine blades is presented. A numerical investigation method takes into account the phenomenon of gas-dynamic temperature stratification. The possibility of increasing the efficiency of cooling turbine blades due to the phenomenon of gas-dynamic temperature...

Preventing paraffination of pumping equipment of oil wells

Andrei Nikolaevich Krasnov, Elena Aleksandrovna Khoroshavina, Marina Yurevna Prakhova
In the overall balance of oil reserves of Russia, high-paraffin oils (HWO) make up, by different estimations, from 55 to 75%. Asphalt-resinous and paraffin depositions (ARPD) are contained in the composition of oils in almost all oil-producing regions of the Russian Federation (RF). High content of paraffin...

Synthesis of Vector Control Systems for Induction Motor Drives

Ekaterina S. Kucher, Maria A. Komazenko, Anastasia I. Romashchenko
This paper presents the methods of synthesis for speed systems control of induction motor drives, which in accordance with the principles of vector control are represented as a dynamic multi-input/multi-output object. Under the influence of uncontrolled signal and parametric disturbances, the synthesized...

Mathematical Modelling of Strongly Non-Equilibrium Transfer Processes at Nanoscopic Scale

I.V. Kudinov, A.V. Eremin, V.K. Tkachev, V.A. Kudinov, K.V. Trubitsyn, E.V. Stefanyuk
Based on the concepts of local non-equilibrium thermodynamics, mathematical models for heat, mass and momentum transfer have been developed with space-time nonlocality taken into consideration. Derivation of transfer differential equations is based on taking into account both specific flows (of heat,...

Intensity enhancement of heat exchange in shell-tube heat exchangers with smooth pipes

Leonid Kushchev, Evgeniy Yakovlev, Nikolai Nikulin, Alexey Feoktistov, Alla Alifanova
The climatic pecularities of the Russian Federation territory that determine the duration of the heating season are considered. The number of operating heating sources of large, medium and low power is reflected. The equipment wear rate of the heating sources is defined. The emphasis is placed on the...

Set-point Revisiting Of Maximum Impulse Protection Adjustment For DC Electric Traction Network

S.M. Kuznetsov, E.G. Langeman, B.V. Malozyomov, A.A. Shtang
The article outlines the transition from analogue to digital protection for DC traction network, selection methods of protection and their settings. The first trial uses results, suggestions for further enhancements of adjusting methods, using monitoring and increasing the level of automation and mathematical...

Study of structure formation in bitumen-mineral compositions based on fly ash under water saturation

Mikhail Sergeevich Lebedev, Irina Lvovna Chulkova
The industrial powder waste from thermal power plants such as fly ash is used as asphalt or mineral filler due to its properties and dispersibility. However, the conflicting data on the fly ash usage are due to the different compositions, dispersibility, reaction capacity of the used fly ash. This paper...

Assessment of progressive collapse of operated buildings and structures based upon structural damage

S.I. Merkulov, A.I. Tatarenkov, R.V. Lesovik
The paper outlines different solutions to address the problem of progressive collapse when designing buildings and structures and proposes possible modes of progressive collapse of structural systems. It presents the requirements stipulated by regulatory documents for assessing progressive collapse of...

Increasing efficiency of composite thermal insulation foam concretes

Valery Stanislavovich Lesovik, Victor Mikhailovich Vorontsov, Evgeny Sergeyevich Glagolev, Daniil Dmitrievich Pomochnicov, Vasiliy Vasilievich Voronov, Aleksandr Anatolevich Volodchenko
The paper describes the development of composite binders with low water demand, obtained by intergrinding Portland cement, Muroplast hyperplasticizer, and tailings of magnetic separation of jaspilites from the Kursk Magnetic Anomaly. The obtained composite binders possess high strength properties after...

Analysis of Pulsed Operating Mode of Linear Induction Drive of Grain Cleaning Machine

A. Linenko, M. Tuktarov, R. Aipov, V. Baynazarov
The authors of the paper present the results of theoretical research of the pulsed operating mode of linear electric sieve mill of grain cleaning machine MVR-2 (SU - 0.1). It is shown that when using a linear electric drive in the grain cleaning machine in a pulsed mode, the productivity is increased...

Characteristic Features of Internal and External Faults for Use in Differential Protection

I.I. Litvinov, A.A. Osintsev, V.E. Glazirin
The article aims to study the change of instantaneous values of differential current in power transformer protection circuits during magnetizing inrush when the unloaded transformer is connected to a power source and when a fault occurs in the protected area. Also, time behavior of the unbalance current...

Calculation of Fixing Element of Metal-Polymeric Mold-Forming Surface of Mold in Metal Cage

Nickolai Sergeevich Lubimyi, Vladimir Pavlovich Voronenko, Mihail Sergeevich Chepchurov, Evgenii Ivanovich Evtushenko
The article describes a technique to calculate the reliability of a fixing element of a metal-polymer insert of a combined mold for casting products from thermoplastics. To do this, the stress-strain state of the metal-polymer fixing element is calculated by the force of ejection. The characteristics...

Technology of metal-polymer form-building parts of compression molds

Nickolai Sergeevich Lubimyi, Irina Alexandrovna Teterina, Mihail Sergeevich Chepchurov, Evgenii Alexandrovich Yakovlev
The article describes the technology of combined metal-metal-polymer molds to cast plastic products. The economic feasibility of this technology is confirmed by comparing the processing layouts to obtain a mold for the same product, machining and using a metal-polymer as a forming surface material. The...

Specific Features of Friction Mechanisms of Thin-film Coatings of Parts of Mining Machines Working in Fretting Corrosion

V.V. Maksarov, V.A. Krasnyy
The paper consideres the occurrence of fretting corrosion on nominally fixed surfaces of highly loaded parts of mining machines and mechanisms. The authors give examples of wear and damage of critical parts operating under fretting. The mechanisms of fretting corrosion when using wear-resistant coatings...

Method for studying shape of cutting tool by light field recorder

V.V. Maksarov, V.E. Makhov
A technique for controlling the shape of the surface and the defects of the cutting tool by an optoelectronic system of the light field is proposed. The physical and information models of the optical-electronic light field recorder, the mathematical model of the edge of the cutting surface of the tap,...

Question Of Determining Diagnostics Time Intervals Of Electric Transport Systems Using Time Between Failures

B.V. Malozyomov, M.V. Rozhkova, M.E. Vilberger, A.A. Shtang
The determination of the current technical resource of the electric transport system is an important characteristic that allows one to define not only the current reliability of the system, but also to predict it for the future. If the maintenance of electrical equipment is carried out to restore the...

Systems and algorithms of work for protecting electric traction networks

B.V. Malozyomov
The paper reviews the electric traction network analysis, the distinctive features of its functioning, innovative switching to digital protection, the first results of trial operation, proposals for further improvements, using the monitoring and level increase of the automation operating system of the...

Improvement Of Method Of Setting Digital Protection Devices In Straight DC Power Networks

B.V. Malozyomov, M.V. Rozhkova, A.A. Shtang
The paper describes methods for setpoints setting of digital protections (terminals) in traction DC networks. A technique for their improvement and protection settings in a complete scheme is proposed. Besides, the main technical characteristics of digital protection and automation devices are listed....

Fuel Stream Modeling in Flowing Section of Sprayers of Diesel Nozzles

V.A. Markov, V.G. Kamaltdinov, E.A. Savastenko
Achievement of required indexes of diesels is impossible without processes improvement of fuel spraying and mixture formation. Modern diesel fuel equipment does not provide a demanded number of the above-mentioned processes fully. Quality improvement of the processes is a goal of the study. Constructions...

Using Mustard Oil as Ecological Additive to Petroleum Diesel Fuel

V.A. Markov, V.G. Kamaltdinov, S.S. Loboda
The relevance of the article is due to the need for wider use of the alternative fuels in internal combustion engines. Advantages of using fuels of vegetable origin as motor fuels are shown. Experimental research of diesel engine D-245.12S functioning on mixtures of diesel fuel and mustard oil of various...

Study of Suspension Bridge Deformation Using Neural Network

Boris Mazurov, Fawzi Zarzoura, Mohamed Hassan
The relevance of the article is due to the need for wider use of the alternative fuels in internal combustion engines. Advantages of using fuels of vegetable origin as motor fuels are shown. Experimental research of diesel engine D-245.12S functioning on mixtures of diesel fuel and mustard oil of various...

Induction heating based on permanent magnets with magnetic field concentrators

A.I. Aliferov, D.S. Vlasov, V.A. Promzelev, A.E. Morev, R.A. Bikeev
To study the effect of various types of magnetic field concentrators on the energy and thermal characteristics of the induction heating system of noncylindrical billets in the magnetic field of rotating permanent magnets, a numerical model was developed. The model allows solving the conjugate electromagnetic...

Steady motions of nonhomogeneous ellipsoid on horizontal plane

M.A. Munitsyna, A.I. Munitsyn
The dynamics of a heavy nonhomogeneous ellipsoid of rotation on a horizontal fixed plane with friction is analysed. It is assumed that the mass centre of the spheroid coincides with its geometric center and that the geometric axis of symmetry is the axis of dynamic symmetry. The frictional force is proportional...

Method of fuzzy controller adaptation

E. A. Muravyova, M. I. Sharipov
During writing this work, the fuzzy controller with a double base of rules was studied; it was applied for the synthesis of the automated control system. A method for fuzzy controller adaptation has been developed. The adaptation allows the fuzzy controller to automatically compensate for parametric...

Device For Control Of Integrity Of Graphite Electrodes

A.V. Myatezh, B.V. Malozyomov, M.A. Smirnov
A method of eddy-current defectoscopy of graphite electrodes is considered in the article. Imitation modeling of electromagnetic processes was performed, and a device based on a microcontroller for monitoring the integrity of the graphite electrodes was developed. The device has electrotechnical characteristics...

Performance Increase of Lithium-Ion Batteries

A.V. Myatezh, B.V. Malozyomov, M.A. Smirnov, A.A. Shtang
Lithium-ion battery (LIB) technology further enabled the information revolution by powering smartphones and tablets, allowing an unprecedented performance of these devices against reasonable cost. Currently, this battery technology is on the verge of carrying the revolution in road transport and energy...

Power Supply Reliability Indexes

Felix Byk, Lyudmila Myshkina, Ksenia Khokhlova
Reliability of the power system depends on coordination and coherence of continuous processes of production, transmission, distribution and consumption of electric energy. It is offered to consider a power supply system of Russia as a four-level hierarchical system due to the terms of uninterrupted operation...

Molecular Dynamics Simulation of Xenon Diffusion in UO2 Nanocrystals

N.V. Kichigina, K.A. Nekrasov, A.Ya. Kupryazhkin, S.K. Gupta
Diffusion of individual xenon atoms in the bulk of UO2 nanocrystals with free surface is studied using the molecular dynamics approach. Two sets of the pair potentials of interaction of the Xe atom with uranium and oxygen ions are considered. For both sets, interstitial migration is observed, as well...

Determination of quenching modes after thermodiffusion hardening of parts from gray cast iron

Valeriy Ivanovich Vasiliev, Viktor Evgenievich Ovsiannikov, Roman Yurievich Nekrasov, Ulyana Sergeevna Putilova
In this paper, the authors consider determination of the modes of heat treatment of gray cast iron parts that have been subjected to diffusion surface alloying. The type of hardening treatment under consideration makes it possible to obtain a layer of high-carbon steel on the surface of the cast iron...

Complex study of modified binder properties

Viktoria Viktorovna Nelubova, Pengkun Hou, Valeria Valerievna Strokova, Lok Pratar Singh, Daria Dmitrievna Netsvet, Diana Olegovna Bondarenko
Multifunctional studies have already proved the efficacy of nanotechnological solutions to be applied in the civil engineering. This is largely due to the tendency in the product quality increase in terms of the basic exploitation characteristics, as well as, the formation of end-products unique properties....

Low-frequency electromagnetic shock machine

V.Yu. Neyman, L.A. Neyman
Pulsed electromagnetic machines of shock action based on new vibro-impact technologies are widely applied in industry. Such machine striker mechanical vibrations frequency is equal to or multiple of the frequency of the supply network. The research purpose is the impact energy increase while pulse linear...

Mathematical model of dynamics of two-coil synchronous electromagnetic impact machine with spring reversal of striker

V.Yu. Neyman, L.A. Neyman, A.V. Markov
The development of modern methods of analysis and synthesis of electromechanical systems, including the main structural link of which is an electromagnetic drive, causes an increased interest in the creation and improvement of mathematical models of machines and devices that most objectively reflect...

Factors Defining Value and Direction of Thermal Drop Between Mine Shafts and Impact of General Mine Natural Draft on Ventilation Process of Underground Mining Companies

Alexandr V. Nikolaev, Anton A. Kamenskikh, Viktor A. Nikolaev, Nikolay I. Alymenko, Daniil N. Alymenko, Alexandr I. Petrov
The article specifies measuring data of air parameters and their volume flow in the shafts and on the surface, collected in BKPRU-2 (Berezniki potash plant and mine 2) (®Uralkali¯ PJSC) in the normal operation mode, after shutdown of the main mine fan (MMF) and within several hours. As a result of the...

Investigation of Structure and Properties of Tool-electrode "Cu-Ti3SiC2" for EDM

S.A. Oglezneva, N.D. Ogleznev
The aim of this paper is to study the structure formation in the composite powder material "copper- Ti3SiC2" and to study erosion-resistance of tool-electrode made from this material by EDM of metal alloys. The influence of Ti3SiC2 content on the properties (porosity, hardness, strength, electrical resistance,...

Task of Optimal Control of Gas Exchange in System "Artificial Lungs - Self-contained Breathing Apparatus"

Pavel M. Onevsky, Maxim P. Onevsky, Vasiliy A. Pogonin
The structure of the predictive control system of the test facility "Artificial lungs" is developed. The statement of the task of optimal control of actuating mechanisms of the test facility "Artificial lungs" is formalized: the equation of object control in the form of differential equations is formulated,...

Intensification of synthesis processes of clinker minerals in presence of coal-alkaline additive

Natalia Petrovna Bushueva, Olga Aleksandrovna Panova, Pavel Vasilievich Besedin
When preparing cement raw slurry, in order to regulate its aggregative stability and flowability, a coal-alkaline additive is used, which not only changes the surface properties of disperse particles, but also intensifies the portland cement clinker synthesis process. Adding of coal-alkaline reagent...

Complex method of peen forming and shot peening of aircraft structural components

Andrey E. Pashkov, Vladimir P. Koltsov, Aleksander A. Pashkov
The paper describes a complex method for forming aircraft panels as well as automated plants for bending, peen forming, sanding, and shot peening. It also describes calculation methods for technological conditions which compensate for the effect of the residual stress on the shape of parts

Moisture condition of building materials in different operating conditions

Vladimir G. Gagarin, Natalia V. Pavlenko, Pavel P. Pastushkov, Alexander S. Kubenin
The definition of the concepts of theoretical and operating moisture of building materials is given in the paper. The estimated moisture is determined. To determine operating moisture, the analysis methods are used. The issues with the estimated moisture based on field studies are presented. Methods...

Mathematical Model for Calculation of Process of Chemisorption Adsorption of Carbon Dioxide

Guzel R. Kamaletdinova, Sergey A. Skvortsov, Maxim P. Onevsky, Alexander A. Tret'yakov, Alexander N. Pchelintsev
The system of assumptions of the mathematical description of the process of chemisorption of carbon dioxide in a regenerative cartridge is formalized. The authors developed a mathematical model suitable for carrying out imitation studies of the static and dynamic characteristics of the chemisorption...

Reactive power compensation and high-frequency distortions correction in Metro

Andrey Petrov, Nikolay Shurov
The paper reviews research data of reactive power compensation for Metro electric power substations. According to comparative analysis of Metro, it is necessary to compensate reactive power in order to reduce its the negative consequences, which are also presented. Reactive power compensation ensures...

12-Pulse Rectifier for Traction Substations of Electric Transport

A. Poleshchuk, M. Vilberger
The article discusses the influence of the non-sinusoidal form of the voltages of the supplying three-phase network on the quality of the rectified voltage from multipulse rectifier with a circular outline of the valve shoulder. The research aims at identifying the most stable rectification circuit during...

From nano-scale to macrostructure in composite for additive technologies

Valentina Anatolyevna Poluektova, Nikolay Afanasyevich Shapovalov, Vladimir Nikolaevich Vladykin
Onrush of additive technologies might allow a 3D concrete printing method to become more profitable and efficient for building unique constructions than traditional methods of building. Until the XXI century, the science paid special attention to phenomena and processes at two levels: microscopic scale...