Категория: # 4, 2018

Influence of GTE rotor vibrations on technical condition of inter-shaft bearing

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UDC 004. 588 BBK 74.5

Yu. A. Karavaev

S. A. Khodatskiy

A significant number of aircraft engines taking out early from operation are associated with inter-shaft bearing failures. Possible causes of such failures are violations of their lubrication and cooling conditions. The article presents the results of experimental studies to assess the effect of reducing the performance of the oil tube with bending vibrations of the rotor on the thermal state of the inter-shaft bearing.

During the turbofan engine operation, its shaft co-performs bending vibrations due to the imbalance of the rotor. In this case, the oil tube, placed inside the engine shaft, will also make bending vibrations, which can be one of the reasons for reducing oil consumption through the oil tube with a significant level of vibrations. In this case, the working temperature of the inter-shaft bearing may increase significantly.

Keywords: aircraft engine, inter-shaft bearing, vibration velocity, bearing temperature, GTE oil system parameters.

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Comparative analysis of a mathematical model of the turbine gas temperature sensor of the turbocharger of a helicopter gas-turbine engine based on regres-sion analysis and neural networks

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UDK 629.7:681.324 BBK 39.551-01-07 S21

A. A. San’ko

A. A. Shejnikov

The article presents the results of a comparative analysis of mathematical models of the turbine gas temperature sensor of the turbocharger of a helicopter gas turbine engine based on regression analysis and on a multilayer neural network. The inexpediency of using a multilayer neural network as a mathematical model of a gas temperature sensor is proved. The optimal type of the mathematical model of the gas temperature sensor is selected by the criterion of the minimum error of the output parameter calculation.

Keywords: gas turbine engine, rotor, mathematical model of gas temperature sensor, helicopter, neural network.

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Pecularities of person-centered approach to students support at the stage of adaptation in new educational environment

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УДК 378 ББК 74.48

O. A. Molokova

The article deals with the necessity to consider students support at the stage of adaptation in the conditions of humanization of education based on humanistic psychological approaches. The most consistent and developed of these approaches in pedagogical practice is the person-centered approach which is able to act as the theoretical and practical basis of this kind of support. The article discusses the peculiarities of supporting students in terms of the person-centered approach in comparison with the traditional (pragmatic) approach.

Keywords: adaptation of students, person-centered approach, students support.

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Listener’s discourse in music reviews

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УДК 811.112.2 ББК 81.432.4

V. A. Erman

A. V. Ermakova

The article explores the interdiscursive nature of music reviews which is manifested in interdiscursive relations between reviewer’ s discourse and discourse of music composition/ music event and can also include listener’s discourse. The article investigates peculiarities of listener’s discourse in music reviews by example of German texts and is devoted to the linguistic analysis of various types of discourse markers and functions in music reviews.

Keywords: discourse, music review, reviewer’s discourse, listener’s discourse, discourse marker

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Modern views on a rational nutrition of russian women (the case of St. Petersburg)

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UDK 316.356.4 BBK 60.54

L. A. Lebedintseva

P. P. Deriugin

A. A. Smelova

The article examines the ideas of Russian women about proper, rational and balanced nutrition in everyday life. The basic modern theories and concepts of proper and rational nutrition, widespread in Russia, are considered. It is shown that modern women tend to support the proposed norms and standards in relation to food consumption, and mainly use the existing social constructs about the rules of nutrition in the Russian space, rather than seek to independently form individual principles in this regard. It is concluded that Russian women have poorly formed stable ideas about healthy nutrition.

The study is a combination of quantitative and qualitative data based on sociological empirical research, i.e. representative telephone survey and interviews.

Keywords: nutrition sociology, social nutrition practices, Russian women.

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Fostering conscious discipline among students in the process of implementing additional general development dance education program “School of modern dance “Edelweiss”»

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УДК 37 ББК 74.200.5

N.P. Filatova

The activity of the school of modern dance “Edelweiss” is represented by three workshops:  “Choreographic art”, “Modern dance”, “Children’s pop dance” and is aimed at achieving personal, metasubject, substantive results. The article presents the criteria and a set of methods for the study of the level of adoption of conscious discipline of students in the implementation of additional general development program on choreography “School of modern dance “Edelweiss”.

Keywords: school of modern dance, choreography classes, additional education, personal results, discipline, conscious discipline, fostering of conscious discipline, additional general development program.

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National and foreign experience of ensuring the safety of the educational environment

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UDC 340 BBK 67.5

Z. Sidorova

The article is devoted to theoretical study of the issue of security of the educational environment using various methods and tools. The article presents a classification of such methods and tools. There are examples of informational, economic, criminological, psychological, hygienic, technical, legal methods. The instruments of security of the educational environment are a safety briefing, training employees of educational organizations to act in dangerous situations, the special assessment of working conditions, attestation (certification) of educational organizations and other. Special attention is paid to foreign experience of using various tools of security of the educational environment.

Keywords: public administration, complex security of education, young people, students, educational environment.

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The influence of quasi-sinusoidal inhomogenuities on the characteristics of double- and three-hop ionospheric reflections

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UDC: 621.371.33 BBK 39.57

A.I. Agaryshev

Nguyen Minh Giang

M.A. Portnov

The article presents the results of researching the influence of ionosperic inhomogenuities on the maximum observed frequency (MOF) and the angles of arriving the radiowaves reflected two and three times from the ionosphere (2F2 and 3F2 modes). The authors present the calculated МOF and angles of arrival of decameter radio waves using the method of equal MUF under conditions of quasi-sinusoidal inhomogenuities. The results of calculations are compared with the results of measurements.

Keywords: maximum usable frequency, maximum observed frequency, inhomogeneity of the electron concentration, characteristics of double- and three-hop ionospheric reflections,  the angles of arrival of 2F2, 3F2 modes.

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Innovative approach in the system of foreign language education

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UDC 372.881.111.1 BBK 74.268.19

Z. I. Trubina

Scientific and technological progress creates a new social order for educational institutions. The society needs the professionals who are constantly evolving in their professional field and are able to transform the received knowledge and find creative solutions to problems. The originality of the thinking processes is an essential characteristic of a modern specialist. Therefore the problem of creative thinking development is determined by the particularities of the innovative approach in the educational system. Foreign languages have the potential for the use of innovative teaching methods and contribute to the process of formation of students’ creative thinking.

Keywords: creative thinking, foreign languages, innovative methods

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The role of folk literature in the literary development of primary school children

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UDK 82 (571.54) BBK 83.3 S 57

S. TS. Sodnomov

The article deals with the children’s folklore of Buryats in the development of Buryat children’s literature and the role of Buryat folk literature in the literary development of primary school children.

Keywords: children’s folklore, primary school, primary school child, development, literary development, proverbs, riddles, expressive means.

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