Категория: Aeronautics

Stages of formation and development of aeronautical radionavigation scientific school of MSTU CA, Irkutsk branch

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UDC 621.391:621.396 BBK 39.57-5

Lezhankin B. V.

The article analyzes the stages of formation and development of aeronautical radio-navigation scientific school of MSTU CA, Irkutsk Branch. The main scientific approaches are described. The article reviews the main scientific staff publications.  It demonstrates the research intergenerational continuity, development of the methodology and scientific and experimental facilities.

Keywords: scientific school, radionavigation, interaircraft navigation, satellite navigation.

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Precision of the secondary processing algorithm of navigation signals of the global navigation satellite system based on rho-rho navigation-doppler extended Kalman filter

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UDC 621.396.98 BBK 39.57-5

Kiryushkin V. V., Suprunov A. V.

The authors conduct a research of the error dynamics of the algorithm of the secondary processing of navigation signals of the global navigation satellite system based on extended Kalman filter. The article shows that at the stages of intense maneuvering the accuracy of a certain positioning of a highly dynamic consumer increases to 1.5 times. Presumably the reason for this is the mismatch of the dynamic model of the object, embedded in the optimal linear filter and real dynamics of users’ movements.

Key words: global navigation satellite system, highly fluid consumer, extended Kalman filter, measurement error of coordinates.

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Concerning a new possibility of increasing the positioning accuracy in single-frequency equipment of satellite radio navigation systems

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UDC 004:[316.3:008] BBK 74.58:73

Gorbachev O. A., Zatolokin D. A., Ivanov V. B., Kholmogorov A. A.

The problem of increasing the positioning accuracy of global navigation satellite systems is one of the most important problems of navigation. One of the most inexpensive ways to solve the problem is the time-differential mode of GNSS proposed by the authors earlier. The article focuses on modernization of the time-differential mode for satellite radio navigation systems (SRNS) operating in a single-frequency mode.

Keywords: navigation problem; single-frequency receiver; antenna phase center; differential mode; control and correction station; pseudorange.

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Means of mathematic programming for optimization of air transport systems

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UDC 004.588 BBK 74.5

Chokoj V. Z.

Mathematic and algorithmic approaches to solving practical problems with the use of the mathematic programming toolkit are reviewed. The author considers issues of functionality, directions for use and peculiarities of applying a package of the author’s tools to solve optimization problems associated with air transport systems operation. The main interface solutions on the tools are considered.

The package is recommended for use in engineering and technical higher educational establishments as well as in civil aviation organizations for which the issues of optimization of organizational and technical systems and their processes are urgent.

Key words: air transport system, mathematic programming, performance function, functional, limitation system, plan optimization, simplex method, automatic classification

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The opto-electronic complex of non-destructive testing of aircraft components

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UDC 535.8 BBK 22.34

Pavlov P. V., Wolf I. E., Malov A. N.

The authors discuss ways to implement the devices of non-destructive testing of aircraft components, whose operation is based on the method of optical radiation speckle patterns. The article presents the results of field tests for the practical application of optoelectronic complex of non-destructive testing to assess the technical condition of the aircraft cockpit glazing.

Key words: non-destructive testing; optoelectronic systems; correlation; speckle; laser.

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Environmentally-friendly method of cleaning the volatile organic emissions at maintenance of aviation equipment

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UDC 66.074.5(75.8) BBK 35.11.73

Mitin A. K., Nikolaykina N. E.

The research results of an original-design polymeric nozzle for cleaning the emissions of volatile organic compounds are presented. The device is recommended for vapor recovery of paint coat solvents at maintenance and repair. Cleaning efficiency is up to 99%. Results of hydrodynamic research are described, recommendations about a choice of biofilters operating mode and about their use in civil aviation are made. 

Keywords: biofilters; volatile organic compounds; emissions cleaning, environmental protection; aviation equipment service.

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Methods of reducing the impact of the working environment during the aircraft maintenance

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UDC 656.7; 629.7 BBK 39.5

Khudyakov Y. G., Nikolaykin N. I.

The article considers the issues of decision support by the example of organization of technical service (for example, aviation enterprises). The purpose of these solutions is reducing the negative impact factors of the working environment. The authors propose algorithm and methods of actions of the managerial system at the enterprises to reduce occupational traumatism andoccupational morbidity. As a result the level of safety in the industry increases.

Keywords: air transport; technical service; aerotechnics; working environment; danger; occupational traumatism;occupational morbidity.

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To the question of aviation stuff training in the area of the human factor

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UDC 331.45 BBK 74.204.9

Barsukov A. G.

The article deals with the meaning of sole understanding of the problem − definition of the human factor and aviation stuff training in this area. It gives a definition of the human factor and a modern approach to study its aspects used SHEL model and Ishikawa’s cause and effect chart.

Keywords: flight safety; aviation stuff; aviation system; aircraft; aviation accident; personal factor; human factor; SHEL model; Ishikawa’s chart.

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The analysis of casual processes at interaction of structural elements of aviation transport system

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UDC 351.814.1 BBK 39.58

Marasanov P. O.

Nowadays an aviation transport system – a complex structural formation – is developed and operating. The level of safety of flights is a special criterion which is developed for an assessment of aviation transport system functioning. Adverse factors lead to formation and development of particular situations in the system. To assess the possible consequences a special classification of kinds (or ranks) of particular situations is developed.

Key words: aviation transport system, the level of safety of flights, airport power supply system, particular situation, probabilistic mathematical model.

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An addition to the question of calculations of complicated and majority systems failure-free

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UDC 629.7/621.01 BBK 30в6

Furmanova E. A., Bojko O. G., Shajmardanov L. G.

The article proposes a methodological approach based upon the notion that at the stationary approach the probability of element failure in a workable part of the system may be defined by the total density of elements failure probability flows in the system’s part.

The purpose of the article is to compare the possibilities of traditional and proposed methods of calculating the majority and bridged systems failure-free.

The results obtained with proposed approach strictly match the systems failure conditions. The approach appropriateness is confirmed by the results of experimental research. The methods proposed in the article may be used in calculating the failure-free of the aircraft and spacecraft functional systems.

Key words: majority system, complicated system, failure probability, elements failure flow density, failure discreteness.

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