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Technology of manufacturing some elements of a combustion chamber with a lateral system of reverse current area formation

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UDK 621.45.022 BBK 39.55

Skorobogatov S. V.

Isaev A. I.

With each passing year, the operational requirements for the aircraft power plants are getting stricter and stricter. The combustion chamber as one of the main parts of an aircraft engine determines the indicators of its efficiency, reliability and environmental compatibility. The indicators can be improved due to taking into account the operational requirements at the stage of designing a combustion chamber.

As the concept of a combustion chamber with a lateral system of reverse current area formation implies presence of a number of thin-walled elements as well as double-curved surfaces, designing a chamber of such construction is a complex engineering problem.

The article describes a technology of manufacturing a combustion chamber of the desired design on an example of experimental model for a chamber stand.

Key words: combustion chamber, aircraft gas-turbine engine, operational features, technology of manufacturing, combustion process.

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Skorobogatov Sergey Victorovich

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e-mail: maestro.ru@mail.ru

Place of work: Irkutsk Branch of Moscow State Technical University of Civil Aviation, Irkutsk, Russia

Post: senior lecturer of the aircraft and engines department

Scientific major: fluid dynamics, computational fluid dynamics in applied problems, study of influence of the combustion kinetics of hydrocarbon fuels on the characteristics of jet engines

Important publications:

  1. Isaev A.I, Skorobogatov S.V. Hydrodynamic verification and validation of the numerical methods of the flow calculation in the combustion chamber of a gas turbine engine, Trudy MAI, 2017, no. 97. Available at: http://trudymai.ru/published.php?ID=87336. (accessed 18.01.2019). (In Russian).
  2. Isaev A.I, Skorobogatov S.V. Methodological aspects of burning process experimental research in combustion chambers of gas-turbine engines, Trudy MAI, 2018, no. 98. Available at: http://trudymai.ru/published.php?ID=90175.
  3. Isaev A.I, Skorobogatov S.V. [Optimization of the annular combustion chamber inlet of a gas turbine engine with a transverse vortex system]. Sbornik materialov 15 Vserossijskoj konferencii «Novye tekhnologii» [Proc. 15th Int. Conf. «New technology»]. Miass, 2018, pp. 86-94.
  4. Isaev A.I, Skorobogatov S.V. Assuring of operational requirements when designing the flame head of the combustion chamber with a transverse vortex system. Nauchnyj vestnik GosNII GA – Scientific Bulletin of The State Scientific Research Institute of Civil Aviation, 2019, no. 25, pp. 21-32.
  5. Isaev A.I, Skorobogatov S.V. Operational aspects at the stage of formation of the appearance manifold of the gas flow in the combustion chamber. Nauchnyj vestnik  GosNII GA – Scientific Bulletin of The State Scientific Research Institute of Civil Aviation, 2019, no. 25, pp. 32-41.

Isaev Alexandr Ivanovich

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e-mail: isaew_alexandr@mail.ru

Place of work: Irkutsk Branch of Moscow State Technical University of Civil Aviation, Irkutsk, Russia

Academic degree: Doctor of Technical Sciences

Academic status:  Full professor

Post: professor of the aircraft and engines department

Scientific major: fluid dynamics, computational fluid dynamics in applied problems, study of influence of the combustion kinetics of hydrocarbon fuels on the characteristics of jet engines

Important publications:

  1. Isaev A.I, Skorobogatov S.V. Hydrodynamic verification and validation of the numerical methods of the flow calculation in the combustion chamber of a gas turbine engine, Trudy MAI, 2017, no. 97. Available at: http://trudymai.ru/published.php?ID=87336. (accessed 18.01.2019). (In Russian).
  2. Isaev A.I, Skorobogatov S.V. Methodological aspects of burning process experimental research in combustion chambers of gas-turbine engines, Trudy MAI, 2018, no. 98. Available at: http://trudymai.ru/published.php?ID=90175.
  3. Isaev A.I, Skorobogatov S.V. [Optimization of the annular combustion chamber inlet of a gas turbine engine with a transverse vortex system]. Sbornik materialov 15 Vserossijskoj konferencii «Novye tekhnologii» [Proc. 15th Int. Conf. «New technology»]. Miass, 2018, pp. 86-94.
  4. Isaev A.I, Skorobogatov S.V. Assuring of operational requirements when designing the flame head of the combustion chamber with a transverse vortex system. Nauchnyj vestnik GosNII GA – Scientific Bulletin of The State Scientific Research Institute of Civil Aviation, 2019, no. 25, pp. 21-32.
  5. Isaev A.I, Skorobogatov S.V. Operational aspects at the stage of formation of the appearance manifold of the gas flow in the combustion chamber. Nauchnyj vestnik  GosNII GA – Scientific Bulletin of The State Scientific Research Institute of Civil Aviation, 2019, no. 25, pp. 32-41.

 

Personal bibliographic indexes of the national library «P. R. Slaveikov» (Veliko Tarnovo) (started at the 21st century): comparative analysis

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UDK 012 BBK 91.9:7

Kovachev A. M.

The bibliographic research is detailed and systematic review of the thematic orientation in publications of library specialists in the public library „P. R. Slaveikov ”- V. Tarnovo, Bulgaria is performed: the personal bibliographies, research classifications, studies and publications in multiple fields.

Keywords: рersonal bibliographies; PL «P. R. Slaveikov» –V. Tarnovo; 21st century.

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Historical portraying of the concept «personality»

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UDK 101.3 BBK 87.6

Nelaeva I. A.

The purpose of this article is to reconstruct the initial, universal image of the concept «Personality» from various fields of humanitarian knowledge (ethnography, philosophy, Christianity, psychology).

Key words: concept «Personality», historical and linguistic portraying of a concept, ethnography, philosophy, Christianity, psychology.

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Peculiarities of vortex interference of air intakes of gas-turbine power plants with the underlying surface

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UDK 629.7.036.3 BBK 39.15

Kirenchev A. G.

Danilenko N. V.

The article considers the basic problems of vortex formation phenomenon and its natural and technogenic vortices. A new definition of vortex formation based on the physical essence of the working process is given. The mathematical foundation of the working process of vortex formation is presented with the use of Professor N. E. Zhukovsky’s theorem about the lifting force of the wing, as well as the equation for conservation of the gas movement energy and the Stokes theorem about the equality of the vortex tension and velocity circulation. Due to the analysis of the energy conservation equation the main factors of generation and accumulation of natural and technogenic vortices are revealed. The issue of the determining role of the underlying surface for forming effluent vortices of air intakes of aircraft gas-turbine propulsion systems is investigated. Influence of other external factors on the formation of technogenic vortices is noted. Classification of technogenic vortex formation and its vortices by the essence of the working process is given.

Keywords: vortex formation, technogenic vortices, vortex interference, the role of the underlying surface, gas turbine power plants, mathematical justification of Coriolis force vortices, air intake.

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The defense model of the optronic equipment of tactical unmanned air vehicles against enemy laser technologies

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UDK 623.624.2 BBK 32.95

Glushkov A. N.

Marchenko A. V.

The article presents a developed model of a conflict interaction between optronic equipment and functional-kill laser complexes. The model is based on the representation of the conflict as a semi-Markovian stochastic process with a discrete set of states and mathematical formalization of dependence of probabilities of being the “optronic equipment –functional-kill laser complex” system in their ground states on probability and time characteristics of the conflict parties.   The obtained analytical expressions allow the influence of conflicting parties parameters on the conflict winning probability to be defined.

Key words: optronic equipment, laser reconnaissance aid, conflict interaction, state probability, target drop-out, functional-kill laser complex.

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Marchenko Aleksander Vasilyevich

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e-mail: mav89202125904@yandex.ru

Place of study: Federal state military educational institution of higher professional education “Military educational scientific center of Air Force “Air Force Academy named after Professor N. E. Zhukovsky and Y. A. Gagarin”, Voronezh, Russia

Status: postgraduate student

 

Glushkov Aleksandr Nikolaevich

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Place of  work: Federal state military educational institution of higher professional education “Military educational scientific center of Air Force “Air Force Academy named after Professor N. E. Zhukovsky and Y. A. Gagarin”, Voronezh, Russia

Academic degree: Doctor Of Technical Sciences, senior researcher

Academic status: professor of the department

Specialty from nomenclature of scientific (Code of Higher Attestation Commissions): 20.02.25 Military electronics, equipment of special-purpose complexes

Scientific major: special-purpose laser systems

Important publications:

  1. Glushkov A. N. Opredelenie racional’nogo tipazha lazernyh sredstv optikojelektronnogo podavlenija / A. N. Glushkov, Ju. L. Kozirackij, A. D. Lucenko // Vestnik VAIU. 2012. №2 (12). S. 180-188.
  2. Glushkov A. N. Sistemnyj podhod k ocenke razveddostupnosti optiko-jelektronnyh sredstv / A. N. Glushkov, P. E. Kuleshov, N. V. Drobyshevskij, A. V. Alabovskij // Radiotehnika. Informacionnyj konflikt v spektre jelektromagnitnyh voln. 2017. Vyp. 214. № 33. S. 48-52.
  3. Glushkov A. N. Model’ optiko-jelektronnogo sredstva kak ob#ekta zashhity ot vozdejstvija lazernogo izluchenija / A. N. Glushkov, P. E. Kuleshov, N. V. Drobyshevskij, A. V. Marchenko // Radiotehnika. Informacionnyj konflikt v spektre jelektromagnitnyh voln. 2018. Vyp. 222. № 34. S. 34-38.
  4. Glushkov A. N. Jeffektivnost’ zashhity  ajerozol’nym obrazovaniem optiko-jelektronnogo sredstva ot lazernogo vozdejstvija / A. N. Glushkov, P. E. Kuleshov, N. V. Drobyshevskij, A. V. Marchenko, S. A. Prosvirin // Radiotehnika. Informacionnyj konflikt v spektre jelektromagnitnyh voln. 2018. Vyp. 222. № 34. S. 39-43.

 

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