https://www.elibrary.ru/title_about_new.asp?i 2782-6724 Global Energy 3 202 2014
PER RUS 7-13 Rogov Igor M. THE RUSSIAN VOLTAIRE  (320th anniversary) This article examines the influence of the Enlightenment and freedom-loving ideas of the great French thinker and writer Voltaire on the views of progressive Russians advocating the emancipation of serfs, on the ideas of the Decembrists and on the Russian culture as a whole, especially during the eighteenth century and the first half of the nineteenth century. This article discusses the publication of Voltaire’s work “History of the Russian Empire under Peter the Great” as well as the nature of the extensive correspondence between Voltaire and Catherine II. Furthermore, it examines the importance of Voltaire’s work — for modern society — for understanding how social ideas evolve. Finally, the article reports about the opening of the European Centre of the Age of Enlightenment: the Voltaire Library in the Russian National Library in Saint Petersburg, which contains 6814 volumes. 130.2:374.7 ENLIGHTENMENT; THE AGE OF ENLIGHTENMENT; FREEDOM OF THOUGHT; RELIGIOUS TOLERANCE; DEISM SATIRIST CULTURE. https://engtech.spbstu.ru/article/2014.89.1/ 1_rogov.pdf
REV RUS 14-22 Zheleznyakov Alexander zheleznyakov@rtc.ru Korablev Vadim korablev@spbcas.ru «SPACE HARBORS» OF THE PLANET.  Part I. RUSSIAN SPACEPORTS Space exploration is not possible without creating spaceports - the complex ground-based facilities, providing assembly, testing, training and the actual launch of spaceships for space exploration purposes. The article outlines the basic requirements for siting spaceports, their classification, description of launching pads for spaceships, as well as speceports under construction. The article provides statistical information on launches of spacecrafts from 4 October 1957 to May 1, 2014. 629.78 COSMONAUTICS; SPACEPORT; SPACESHIP; LAUNCHING COMPLEX; INFRASTRUCTURE; BAIKONUR; PLESETSK; VOSTOCHNY. https://engtech.spbstu.ru/article/2014.89.2/ 2_zheleznyakov.pdf
REV RUS 23-34 Zheleznyakov Alexander zheleznyakov@rtc.ru Korablev Vadim korablev@spbcas.ru «SPACE HARBORS» OF THE PLANET.  Part II. SPACEPORTS IN UNITED STATES,  CHINA AND OTHER COUNTRIES Space exploration is not possible without creating spaceports - the complex ground-based facilities, providing assembly, testing, training and the actual launch of spaceships for space exploration purposes. The article outlines the basic requirements for siting spaceports, their classification, description of launching pads for spaceships, as well as speceports under construction The article provides statistical information on launches of spacecrafts from 4 October 1957 to May 1, 2014. 629.78 COSMONAUTICS; SPACEPORT; SPACESHIP; LAUNCHING COMPLEX; INFRASTRUCTURE; BAIKONUR; PLESETSK; VOSTOCHNY. https://engtech.spbstu.ru/article/2014.89.3/ 3_zheleznyakov.pdf
RAR RUS 35-44 Lykov Aleksey Lykov_AV@list.ru Zabelin Nikolay n.zabelin.turbo@mail.ru Rassokhin Victor Tyukhtyaev Aleksey Tyukhtyaev_AM@lmz.power-m.ru COMBINED-CYCLE PLANTS WITH ORGANIC WORKING FLUIDS  FOR UNIFIED GAS SUPPLY SYSTEM OF RUSSIA The unified gas supply system of Russia is the largest gas-transport system in the world. It covers 161,7 kilometers of the gas-main. However, there is a problem to supply gas-transfer compression stations with electric power. The paper considers the possibility of applying the organic Rankine cycle in the combined-cycle plant for the electric power supply of units involved in the Russian unified gas supply system. As the example the authors take the compression station «Severnaya». The paper analyzes the influence of ambient temperature and working fluid’s type on the performance of the combined-cycle plant and determines main parameters of the combined-cycle plant which allow reaching the objective steam turbine’s net power. 621.165 COMPRESSOR STATION; COMBINED-CYCLE PLANT; HEAT SCHEME; STEAM TURBINE; ELECTRIC POWER; ORGANIC RANKINE CYCLE. https://engtech.spbstu.ru/article/2014.89.4/ 4_lykov.pdf
RAR RUS 45-53 Galerkin Yuriy galerkin@pef.spbstu.ru Drozdov Alexandr A_drozdi@mail.ru GAS DYNAMIC PERFORMANCE MODELING  OF CENTRIFUGAL COMPRESSOR STAGES WITH 3D IMPELLERS The paper describes the 6th version of the universal modeling method programs for calculating centrifugal compressor stages. These programs were developed for 3D impeller calculation. The received mathematical model was identified. The identification resulted into the unified set of empirical factors. The efficiency definition error at the design stage is 0.86 %. The efficiency definition error at five flow rate points (except the point of the maximum flow rate) is 1.22 %. Four variants of the 3D impeller are designed by means of 6th version programs and quasi three-dimensional calculation programs. The gas dynamic performances of the stage with the impeller variants are calculated by NUMECA FINE TURBO program. Performance comparison are able to specify some design recommendations. 621.515 (075.8) CENTRIFUGAL COMPRESSOR; UNIVERSAL MODELING METHOD; EFFICIENCY; HEAD СOEFFICIENT; 3D IMPELLER. https://engtech.spbstu.ru/article/2014.89.5/ 5_Galerkin.pdf
RAR RUS 54-61 Shpenzer Gennady shpenzer.g@gmail.com Zakharov Alexander vobla777@mail.ru Tyukhtyaev Aleksey Tyukhtyaev_AM@lmz.power-m.ru stability of the steam flow in LPC last stages The article has examined an issue of flow stability at last stages of low pressure cylinders. The paper reviews experimental investigations of LPC last stages. Different factors, such as low specific mass flows, negative root reaction, number of stages, supersonic Mach number and others, which influence the flow stability and energy losses, have been analyzed. The article has considered important regularities, including stability zones, flow fluctuation and dynamic stress while changing the operational mode. In order to sort out these problems the authors have proposed the re-designed large diameter last stage, which consists of two sections. This approach will allow organizing the optimal structure of the flow and improve the efficiency of the last stage. 621.165 STEAM TURBINE; LAST STAGE; FLOW SEPARATION; EFFICIENCY; FLOW STABILITY. https://engtech.spbstu.ru/article/2014.89.6/ 6_shpenzer.pdf
RAR RUS 62-69 Sverdlov Aleksandr a.b.sverdlov@gmail.com Reliability of gas pumping machinery  and application of fluorine-containing film coatings The article presents main results of the research on reliability of gas pumping machinery operated by Russian gas transport companies. Mechanical defects of journal bearings, gears and couplings of gas pumping units, caused by wear and fatigue, are examined. In order to improve the operational reliability of gas pumping units, a new technology of friction surfaces modification by applying fluorine-containing film coatings is introduced. The article analyzes the main results of testing the technology on gas pumping units. 621.8 Reliability; gas pumping machinery; fluorine-containing surfactants; friction; wear; journal bearings; gears; couplings. https://engtech.spbstu.ru/article/2014.89.7/ 7_sverdlov.pdf
RAR RUS 70-79 Ushakov Andrei elliat@mail.ru Ushakova Elena brels@list.ru Ushakov Gennadii ekosys@hotbox.ru WASTE OF COAL ENTERPRISES  AND SURPLUS ACTIVated SLUDGE IN SOLID COMPOSITE FUEL The paper proposes the usage of carbon-containing waste of industrial enterprises in producing the solid fuel for energy purposes. The surplus activated sludge from the city sewage treatment facilities is applied as a binder. The paper determines the optimal composition of fuel to use in solid-fuel boilers and develops the technological scheme of the experimental setup. The proposed technology will contribute to resource - and energy saving. The resource saving includes the usage of biogas and fuel pellets as an alternative to traditional natural energy resources: coal, natural gas, etc. It is prospective to use pellets as the solid fuel instead of coal in boiler plants and for human needs. Energy saving implies significant reduction of external energy consumption in order to implement the proposed solutions, which is possible due to the usage of one’s own produced gas and solid fuel. 662.7 solid fuel; waste of industrial enterprises; activated sludge; binder. https://engtech.spbstu.ru/article/2014.89.8/ 8_ushakov.pdf
RAR RUS 80-87 Minaev Oleg minaev.op@bk.ru QUALITY CONTROL of SANDY GROUNDS in large structures An important task at the soil compaction of foundations is to assess the quality of their laying after dynamic vibration processing. This task is necessary to determine the density and physico-mechanical properties of soil after compaction, which defines reliability and durability of foundations and structures. In the slightly wet ground with layer-by-layer stacking this task is solved by selecting soil samples in each compacted layer of the foundation. The author of the article has conducted comparative tests of different methods of soil sounding (static, shock, vibration and explosive) and claims the possibility of their usage to assess the properties of water-saturated sandy grounds after dynamic vibration deep compaction. 624.131.3 foundations and structures; water-saturated soil; liquefaction of soils; dynamic vibration methods of compaction; CPT; shock and vibration sensing; explosive method of soil sounding; structural soil strength; density. https://engtech.spbstu.ru/article/2014.89.9/ 9_minaev.pdf
RAR RUS 88-96 Strizhak Pavel pavelspa@tpu.ru Morozov Maxim tpu_chm@tpu.ru energy efficiency of Buildings heating system  using various methods of heat consumption regulation The authors designed a thermal model of the building heating system including a heat source, individual heating unit and heating appliances. Application Simulink of the mathematical package Matlab is selected as a platform for the model. The paper describes the research of influencing external and internal disturbing factors on the operation of the heating system with a sequential connection of heating appliances. The research resulted into specifying time characteristics of transient processes in systems with local and individual regulation of heat consumption. The authors analyze the possibility of implementing specialized energy-saving thermal modes on the basis of one-pipe heating systems. The paper provides recommendations to improve the operation efficiency of the heating system using various methods of heat consumption regulation. 697.1 heating system; heat consumption; regulation; energy efficiency; simulation model; mathematical modeling https://engtech.spbstu.ru/article/2014.89.10/ 10_strizhak.pdf
RAR RUS 97-106 Semenova Alexandra Semenova_AV@lmz.power-m.ru Chirkov Denis chirkov@ict.nsc.ru Lyutov Alexey lyutov.alexey@gmail.com Objective functionals for optimization  of Kaplan runner blade shape Recent developments in computational fluid dynamics, methods of solving optimization problems, and more powerful and effective computers ensure automation of desiging the hydraulic turbine runner. Nowadays optimization methods of shaping turbine water passages, based on the Genetic Algorithm (GA), are being widely developed in the world. This paper presents the multi-objective multi-point optimization method of the Kaplan runner blade shape. The authors considered the problems of selecting objective functionals depending on the applied CFD optimization method. The paper provides modified objective functionals used for solving optimization problems of the Kaplan runner blade shape in full load operation point. 621.224.35 Kaplan turbine; runner blade; multi-objective optimization; genetic algorithm. https://engtech.spbstu.ru/article/2014.89.11/ 11_semenova.pdf
RAR RUS 107-113 Arefiev Nikolai arefiev@cef.spbstu.ru Badenko Vladimir vbadenko@gmail.com Maslikova Anna avmaslikova@gmail.com ASSESMENT OF THE BIOGAS POTENTIAL  OF LIVESTOCK WASTE in THE LENINGRAD REGION Biogas technologies have become widespread in the world because of their relative simplicity, low cost, and possibility to obtain valuable energy consumption as well as compost (valuable fertilizer) as a byproduct. The paper estimates the biogas potential of livestock and poultry waste in the Leningrad region and assesses the prospects to use biogas in energy production. Results of the calculations are presented using the technology of geographic information systems (GIS). GIS allow visualizing the spatial distribution of the biogas potential throughout the region and creating thematic maps in the GIS environment for the regional biogas potential. These maps help identify areas which could be considered as the most prospective to site biogas plants. 004.9:662.767.2 GIS-TECHNOLOGY; BIOGAS POTENTIAL; LIVESTOCK WASTE; LENINGRAD REGION. https://engtech.spbstu.ru/article/2014.89.12/ 12_arefev.pdf
RAR RUS 114-118 Cherny Sergey sergiiblack@gmail.com Dorovskoy Vladimir dora1943@mail.ru METHODOLOGICAL foundation OF EFFECTIVE DEEP-WATER MINING  IN THE CRIMEA The article states the methodological foundation of effective deep-water mining in the Crimea. The authors observe the existing and possible interaction of technogenic systems during sea mining operations on the shelf sea and in the ocean with the fauna and flora. Accumulating data and establishing regularities may expect the formation of such a scientific discipline as sea mining. Sea mining is formed during investigating the object and its place in natural systems. The main scientific objectives of the off-shore mining technology include working out all the basic principles and methods of mineral resources mining from the sea. 65.011.56:519.816:007.51 methodology; deepwater system; management; automation; local strategic objectives; terotechnologies. https://engtech.spbstu.ru/article/2014.89.13/ 13_chernyy.pdf
RAR RUS 119-130 Shakirov Mansur manshak@mail.ru TRANSFORMER MODEL OF SYNCHRONOUS GENERATORS The paper presents a new theory of synchronous turbo and hydro generators, based on direct analyzing the motion of electromagnetic energy from the rotor to the stator using the concept of the Poynting vector. 621.313 SALIENCY ROTOR; MAGNETIC FIELD STRENGTH; ELECTRIC FIELD INTENSITY; POYNTING VECTOR; STATOR WINDING. https://engtech.spbstu.ru/article/2014.89.14/ 14_shakirov.pdf
RAR RUS 131-138 Gerkusov Aleksei Gerkusov_Alex@mail.ru ANALYSES OF TECHNIQUES to CHOICe the SECTION  OF WIRES in overhead power lines The paper considers techniques to choose the section of wires in overhead power lines and proposes the method of selecting the wire section by generalizing and modernizing economic intervals for any wire sections and arbitrary values t allowing for power loss for the corona and the linear isolation of the overhead power line. 621.31 POWER LINE; ACTIVE LINE RESISTANCE; TIME OF MAX LOSSES; POWER LOSSES FOR CORONA; LINEAR ISOLATION; OPTIMAL CURRENT DENSITY; ACTIVE WIRE SECTION. https://engtech.spbstu.ru/article/2014.89.15/ 15_gerkusov.pdf
RAR RUS 139-145 Odintsov Mikhail mixaodintsov@rambler.ru Akimov Dmitrii akimov_d@ntcees.ru B-7916-2013 6601971248 0000-0002-1173-8727 Peter the Great St. Petersburg Polytechnic University, Russia Korovkin Nikolay nikolay.korovkin@gmail.com
Russia, 195251, St.Petersburg, Polytechnicheskaya, 29
 Frolov Oleg ntc@ntcees.ru OPTIMIZATION OF operation Mode ENERGY SYSTEM  BY PHASE-SHIFTING TRANSFORMER SUBSTATION 500 KV The aim of this article is to solve a problem of choosing an optimal PST phase-shifting angle at the 500 kV Ulke substation by means of multiobjective optimization methods. The power system state control and dispatching is not a trivial process, when a dispatcher has to assess the current state and take decisions to improve its indicators. The main problem is a big number of possible states. Each state is characterized by a set of different indicators, reflecting reliability, quality and economic efficiency. Traditional methods of multiobjective problem solving, using adduction of a vector criterion to a scalar one (main criterion method, linear contraction method and others), are subjective and demand great experience from a power system dispatcher. In this article the phase-shifting transformer work at the 500 kV Ulke substation is simulated on the basis of UES Russia and Kazakhstan models. The Pareto set of power system states for three vector criteria is obtained by the direct search. The power system state analysis is fulfilled by means of Pareto front, from which an optimal PST settings range could be recommended. 621.316 Unified ENERGY System; phase-shifting transformer; multiobjective optimization; quality vector criterion. https://engtech.spbstu.ru/article/2014.89.16/ 16_odintsov.pdf
RAR RUS 146-153 Rudskoj Andrey rector@spbstu.ru Sokolov Yuriy s5577@inbox.ru Kopaev Vladimir vkopaev_ela@mail.ru Modelling the process of electron beam synthesis  of products from granules of titanic alloy VТ-6 allowing for heat capacity of phase transition  (diphase Stefan task) The present article considers modelling the process of electron beam synthesis of products from granules of titanic alloy BТ-6 allowing for heat capacity of phase transition. It is established that during the electron beam synthesis of products the process of transforming the powder in a liquid state with its subsequent crystallization can be described by the Stephan two-phase task. The principles of calculating an effective mode of processing are shown at the layer-by-layer melting of powder of the BT-6 titanic alloy on the basis of the mathematical model allowing for processes of heat and mass transfer. The solution to the Stefan task has allowed to define speeds of heating and cooling, fusion depth, traverse speed of moving the firm-liquid boundary into the product. 621.791.722:621.762.04 SYNTHESIS OF PRODUCTS; ELECTRON BEAM; MODELlING; STEFAN TASK; TEMPERATURE FIELD. https://engtech.spbstu.ru/article/2014.89.17/ 17_rudskoy.pdf
RAR RUS 154-161 Chumakov Evgeniy chumakov.ev@mail.ru Analyzing the process  of strain hardening at the transient creep stage The work is devoted to the research of strain hardening effect at short- and long-term tests, their regularities and distinctive features. The author has fulfilled systematic pilot studies of regularities of strain hardening and its influence on the creep speed at the transient stage. The studies have resulted into mathematical expressions to calculate instant creep speeds at transient stage. It has been established that strain hardening at the transient stage is reflected by the increase in the limit of fluidity, which is described by the sedate equation. 539.376:621 Fluidity limit; pressure; creep; speed of creep; strain hardening https://engtech.spbstu.ru/article/2014.89.18/ 18_chumakov.pdf
RAR RUS 161-169 Anastasiadi Grigory Kokorina Alina alvikokorina@mail.ru A-9655-2014 7007045735 0000-0001-7385-147X Peter the Great St. Petersburg Polytechnic University, Russia Kondrat'ev Sergey petroprom2013@yandex.ru
Russia, 195251, St.Petersburg, Polytechnicheskaya, 29
 RESEARCH On OXIDATION  OF HEAT-RESISTANT ALLOY Fe-25Cr-35Ni-0,45C-Si-Nb The paper considers the process of oxidating an alloy of the Fe-25Cr-35Ni-0,45C-Si-Nb system at air temperatures of 400-1150 °C, which has been experimentally studied. The study reveals the nanoscale level of the oxidation process and defines its character and kinetics. It is established that the oxidation process provisionally consists of three stages. It is shown that kinetics of the high-temperature alloy oxidation is determined by processes of scale formation and scale’s structure degradation. For a reliable assessment of an operation resource in heat-resistant Fe-25Cr-35Ni-0,45C-Si-Nb alloys, it is necessary to conduct preliminary pilot research on their corrosion resistance in each case. 669.1.017:669.018.44:669:018.28 CAST HEAT-RESISTANT ALLOYS; HIGH-TEMPERATURE OXIDATION; MICROSTRUCTURE; PHASE COMPOSITION; TUBULAR REACTORS OF PYROLYSIS. https://engtech.spbstu.ru/article/2014.89.19/ 19_anastasiadi.pdf
RAR RUS 170-179 Rudskoj Andrey rector@spbstu.ru Sokolov Yuriy s5577@inbox.ru Kopaev Vladimir vkopaev_ela@mail.ru Defining thermal-physical properties  of materials to model the process  of granulated metal production The present article defines analytical dependencies of thermal-physical properties of gas environment (helium and argon), which are necessary to model the process of granules production by the rotating electrode with plasma heating (PREP) method. Numerical modelling of the process allows predicting parameters of the material structure before the experiment and also forecasting new mechanisms of interrelations between process modes and granule crystallization. The research results showed the interrelation of aerodynamic and thermal models, as at aerodynamic calculations it is necessary to consider the dependence of the Reynolds number on temperature. The revealed dependencies are of great applied value, as they ensure the considerable increase in the calculation accuracy when modeling aerodynamic and thermal processes of electrodes dispersion. 621.762 granules; thermal-physical properties; analytical dependencies; modelling; gas environment; argon; helium. https://engtech.spbstu.ru/article/2014.89.20/ 20_rudskoy.pdf
RAR RUS 180-191 Shvecov Oleg shvec_off@mail.ru Alhimenko Aleksey wft-polytechnic@cef.spbstu.ru. A-9655-2014 7007045735 0000-0001-7385-147X Peter the Great St. Petersburg Polytechnic University, Russia Kondrat'ev Sergey petroprom2013@yandex.ru
Russia, 195251, St.Petersburg, Polytechnicheskaya, 29
 CORROSION DAMAGES OF BORING PIPES  FROM ALUMINIUM ALLOYS D16  AND 1953 when OPERATIng IN THE CONDITIONS OF OIL WELLS The paper considers the nature of corrosion in boring pipes from aluminum alloys D16 and 1953 used in the conditions imitating the development of oil wells. Tests for corrosion cracking and contact corrosion have been fulfilled. It has been obtained that in these conditions both alloys are not subject to corrosion cracking. However, the contact corrosion significantly influences alloy 1953. The authors have studied the possibility to protect the surface of aluminum pipes by oxygenating thecontact zone with a steel lock. The paper shows the efficiency of this protection of boring pipes and describes the metallographic research on the alloy structure after a corrosive attack of the environment. 669.715.017:621.785.3:620.18:622.24.05:620.19 WROUGHT ALUMINUM ALLOYS; CORROSION CRACKING; CONTACT CORROSION; CORROSION RESISTANCE; boring PIPES. https://engtech.spbstu.ru/article/2014.89.21/ 21_shvetsov.pdf
RAR RUS 192-200 Chumakov Evgeniy chumakov.ev@mail.ru the resulted parameter to Assess strength  of complex stressed products  of a Nuclear power station The article shows the solution to the problem of defining the critical section of the hardware with inconstant volume operating conditions. The sample for the solution is nuclear reactor BN-350 assemblages. It is established, that the assembly of the BN-350 fast-neutrons nuclear reactor is characterized by complex operating conditions when each elementary volume of a product is influenced by variable temperature, pressure and density of a neutron flow. The author offers to use the resulted parameter to analyze reliability of the equipment. This parameter has revealed the critical section of an assembly cover which is located below the center of the active zone and where the cover is likely to be destroyed. 539.376:621 durability; resulted parameter; fluidity limit; pressure; creep. https://engtech.spbstu.ru/article/2014.89.22/ 22_chumakov.pdf
RAR RUS 201-208 Galyshev Yuriy galyshev57@yandex.ru Grigoriev Alexei lozin@pef.spbstu.ru Dobretsov Roman kgm-spb@list.ru Lozin Andrei ln.ln@inbox.ru CLOSED-LOOP CONTROL SYSTEMs FOR TRACKED VEHICLE STEERING The paper considers the past research experience on closed-loop systems for the tracked vehicle steering control. A distinctive feature of the system is implementation of PWM (pulse width modulation) for hydraulic pressure control of multi-disk brake and clutch actuators. The paper analyzes key findings of the conducted research, design experiments and development prospects. 629.1.032.001 TRACKED VEHICLE; CLOSED-LOOP STEERING CONTROL SYSTEM; SLIPPING; PULSE WIDTH MODULATION; FILL FACTOR. https://engtech.spbstu.ru/article/2014.89.23/ 23_galyshev.pdf
RAR RUS 209-218 Sklyarevskiy Aleksandr ansk46@mail.ru issues of calculating dynamic processes  in the hydraulic servo power drive with long pipelines This paper considers issues of non-linear mathematical simulation of dynamic processes in the positional hydraulic servo power drive with long connecting pipelines. The study proposes a method for numerical calculation of the dynamics of the power drive when describing non-movement of the working fluid in pipelines with distributed settings, allowing for the restructuring of the speed profile in the flow section. The general mathematical model of the power drive is obtained by using the Euler numerical method and the method of characteristics. The mathematical model for the servo power drive and the design method behind its dynamic processes, their adequacy and efficiency have been validated through the experimental research. 62-82 hydraulic servo power drive; mathematical model; dynamic processes; calculation. https://engtech.spbstu.ru/article/2014.89.24/ 24_sklyarevskiy.pdf
RAR RUS 219-228 Nigmatullina Farida farida_17@mail.ru Tereshin Valeriy Research on telescope dynamics The urgency of detailed considering low-flying artificial and natural space objects and “space debris” caused the technological boom in the sphere of creating high precision mechanisms, sensors, programming and powerful information processing systems. This enabled developing brand-new space tracking systems and modifying the existing ones. The present work is devoted to studying opportunities to modernize a three-axis telescope with the control system of transmission gears. The authors analyzed dependencies of dynamic errors, dynamic loads in drives and steering signals on system critical parameters using various laws of motion for an object under observation. The analysis showed possibility to reduce dynamic errors of a telescope to more than 0,0001radians. The paper presents quantitative values of the drives mutual influence and determines areas of control system stability. The algorithm of forming and solving the equations of motion of a spatial operated multi-phase mechanism can be realized on the personal computer. 62-187.4 Telescope; dynamic analysis of mechanisms; telescope movement; transition modes; dynamic errors; dynamic loads; telescope control; tracking; space escorting; guidance accuracy. https://engtech.spbstu.ru/article/2014.89.25/ 25_nigmatullina.pdf
RAR RUS 229-235 Mikhailov Aleksandr epc68@mail.ru Ivanov Sergey lisa_lisa74@mail.ru Bondarev Yuriy yurec_rtvjlk@mail.ru TECHNICAL RE-EQUIPMENT OF TRACTOR  AND MACHINery STOCK at PEAT MINING companies The article analyzes the existing and prospective peat mining equipment stocks. It offers the ways to re-equip peat mining companies and improve their operating performance, allowing for the scale factor of such companies and technology of peat mining with the usage of innovative and universal equipment. 622.232 PEAT MINING COMPANY; TECHNOLOGY; PEAT MACHINE; TRACTOR AND MACHINEry stock. https://engtech.spbstu.ru/article/2014.89.26/ 26_mikhaylov.pdf