Категория: 2.9. Transport systems

The influence of a crew information support level on safety flights

UDC 004.588 BBK 74.5

Karavaev Yu. A.Khodatskiy S. A.

The article formulates general approaches to the impact assessing algorithm formation of the crew information support level at the stage of landing gear failures localization on safety flights. The possibility of using these algorithms to assess the functional efficiency of the crew in the process of various aircraft systems failures compensating is shown through the specific flight incidents examples.

Keywords: safety, crew information support, failure localization, a special case.

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Geo-heliomagnetic influence on a human body and air transportation safety

UDC 629.7;629.95; 656.085.22 BBK 39.5

Nikolaykin N. I.Pozheluyeva Z. V.Starkov E. Yu.Tsetlin V. V.Savchukov S. A.

The article analyzes statistical information on air transportation growth and the number of aviation incidents over the last 10 years against the present global challenges for development of the world civil aviation. The growth of air transportation intensity draws special attention to danger decrease by reduction of “a human factor” influence. The statistical data analysis of all Russian aircraft types showed that incidents and accidents happened more often to airplanes, including general aviation planes, aerostats, autogyros, ultralight planes. The examples of typical aviation incidents for the last decade connected with the crew’s actions are given. On materials of official investigations, their reasons are analyzed.

It is shown that flight operation safety requires the development of new methods of its assessment, formation of theoretical fundamentals of continuing airworthiness and accidents prevention. A human is the most adapting part of aviation system, but he is the most open for the external impacts that can influence his behavior.

The article describes procedure and results of the experiment in which, by means of laboratory ionomers, the change of oxidizing properties of specially prepared (cleared) water placed in a standard electrochemical cell was registered within a day. It is shown how geo-heliophysical environmental perturbations influence some water properties which are authentically registered in experimental cells. The article concludes that there is their certain influence on a person’s behavior and also on his possible behavior deviations.

Keywords: flights safety; aviation incident; human factor; heliophysical factors; geophysical factors; danger

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Features of the modern stage of airport air service development

UDC 656.7 BBK 39.51

Shutova T. A.

The article describes the current state of the airport air service industry in Russia. The author defines the stages of the development of the airport air service market on the basis of the retrospective analysis. The article considers the main legal forms of investment attraction to the airport infrastructure public-private partnership, concession, contract lifecycle. The author shows the features of the competition among airports for the status of the hub, and among the Russian airport holdings at the modern stage of the airport business development.

Keywords: airport air service market, airport holdings, airport business, air transport hubs, networking air carriers.

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Concerning the methods of reloading breakbulk cargo on railway warehouses

UDC 656.073 BBK 39.28

Urmanova Z. A.

The freight flow of breakbulk cargo processed at railway warehouses is analyzed. On the basis of the analysis, a simplified mathematical model is justified, in which the entire diverse range of goods is split into the following three groups of reloaded breakbulk cargo – through the main storage areas, sorting and temporary storage areas, and directly from one mode of transport to another.

Key words: warehouse; storage area; breakbulk cargo; reloading.

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Promising fasteners for aircraft structures of carbon composites

UDC 629.7.015.4.023 BBK 39.48

Sazhin N. A.Sazhin A. N.

The authors consider benefits and drawbacks of existing (traditional) fasteners (metal rivets) for airframes built with application of carbon composites.  Schematic designs of promising patented fasteners (PCM rivets) and patented technologies of their mounting in aircraft structures, experimental full-size designs of the fasteners of polymeric composite materials (carbon composites) providing improvement of their mounting are given. 

Key words: fasteners, mounting, rivet, carbon composite, polymeric composite material, blind riveting, aircraft structures.

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Signal demodulation for the secondary radar channel of ADS–B system

UDC 621.396.74 BBK 39.571.5

Lezhankin B. V., Mezhetov M. A., Turincev S. V.

Aircraft flight safety is largely dependent on the performance of systems having various purposes. One of the systems is ADS-B intended for air traffic management by constructing trajectories of aircraft motion with efficient use of airspace. The analysis of main methods of designing the equipment, demodulating and decoding the signals in data links is therefore a relevant objective which can increase the efficiency of air transportation at the required level of flight safety.   

Key words: ADS-B, systems of symbol synchronization, quadrature demodulator, quadrature signal, hardware-software receiver, preamble detector.

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Use of Pareto chart for developing recommendations on aircraft reliability

UDC 629.3.083 BBK 39.0163

Barsukov A. G.

The author considers a methodology of integrated approach to the rationale and implementation of recommendations on aircraft reliability with the use of Pareto chart.

Key words: flight safety; aircraft; reliability; failure; fault; Pareto chart.

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Economic expediency of using an air company’s aircraft fleet for a specified net-work of airlines

UDC 656.7.025, 656.032 BBK 65.37, 39.58

Mineeva K. I.Nemchinov O. A.

Проанализирована интенсивность использования воздушных судов авиакомпании на маршрутной сети. Произведена оценка экономической эффективности эксплуатационной деятельности авиапредприятия через расчёт прямых переменных затрат и эксплуатационного дохода по 22 авиалиниям. Выполнено прогнозирование дохода авиакомпании при изменении тарифов в зависимости от сегментации пассажиров. Построена зависимость дохода авиакомпании от характера изменения тарифов.

Ключевые слова: авиакомпания, хаб, эффективность эксплуатации, тариф, маржинальная прибыль.

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Kinetics of creep fracture of vt-20 titanium planar samples

UDC 629.7.015.4 BBK 39.52

Zabobin V. V.

The article demonstrates the results of experimental research of fracture kinetics for samples made of VT-20 titanium sheets under alternate stresses and at elevated temperatures. Dependences of crack growth rate on load parameters are obtained. The mechanism of regarding the influence of temperature and load non-stationarity on VT-20 fracture kinetics is proposed.

Keywords: kinetics, creep, crack, supersonic transport airplane, SST, titanium alloy.

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On the influence of average technical speed on production cost in the complex of micro auto transport systems of cargo transportation

UDC 656.13 BBK 39.38

Aytbagina A. R.Vitvitskiy E. E.

Task solution has been performed by modeling the object – a substitute of complex of micro auto transport systems. The article considers operational transportations planning by an enterprise – producer when it transports its own construction cargo, for its own account, using its own motor vehicles for its construction sites. The authors obtained functional dependence between the production cost and average technical speed of a vehicle in the accepted variability interval and form of this connection for different production situations. Regression models of production cost obtained by the authors have been checked on adequacy to transportation process under study in the complex of micro auto transport systems of cargo transportation using MS Excel.

Keywords: complex of micro auto transport systems of cargo transportation; average technical speed; a motor vehicle; a consignor; production costs; regression dependence.

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