Vol 12, No 2 (2013)

Full Issue

AIRCRAFT AND SPACE ROCKET ENGINEERING
Investigation of energy parameters of small-thrust liquid rocket engines with the geometric expansion ratio of the nozzle F=200
Ageenko Y.I., Nigodyuk V.E., Ryzhkov V.V., Sulinov A.V., Shustov S.A.
Abstract

The paper presents the results of theoretical and experimental studies carried out to determine the energy parameters by the example of small- thrust liquid rocket engines with the nominal thrust in a vacuum of 50 N on unsymmetrical dimethylhydrazine and nitrogen tetroxide fuel components with the nozzle geometric expansion ratio F=200.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):9-19
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Results of simulating an algorithm of flight photogrammetric calibration of electrooptical equipment for stellar Earth remote sensing using the Kalman filter
Kamensky V.V., Petrishchev V.F.
Abstract

An algorithm of flight photogrammetric calibration of electrooptical equipment for stellar Earth remote sensing using the Kalman filter is developed assuming that the vehicle orientation in the course of the sky survey is known with split-hair accuracy. The algorithm is developed using only the linear magnitudes obtained as a result of projecting the star sphere on a focal plane.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):20-25
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Current state of the theory and practice of circuit wiring control and testing of the avionics of rocket fairings of middle-class launch vehicles
Koptev A.N., Gulyaev A.A.
Abstract

The paper presents an existing technology of controlling circuit wiring and tests of rocket fairings of middle-class launch vehicles. The essential features required of modern control systems of circuit wiring and tests of middle-class launch vehicles are formulated. Аn overview of the automated microprocessor control system MASKA is presented and the possibility of using it for the testing of the avionics of rocket fairings of middleclass launch vehicles is shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):26-31
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Method of calculating self-capacitance in planar structural elements of a spacecraft
Syomkin N.D., Bragin V.V., Pomelnikov R.A., Balakin V.L.
Abstract

The paper presents a methodology for calculating distribution of potentials based on the triangulation method of plane approximation, surface method and analytical determination of the matrix elements of Coulomb interaction. The results obtained demonstrate good agreement with the experiments on the electrization process in small spacecraft «AIST».

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):32-39
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Adjustment of the pneumatic drive of a ground catapult to the permanent law of tractive force
Sereda V.A.
Abstract

The paper presents an analysis of pressure balance in the pneumatic drive of a ground launching device (GLD, catapult). A method for optimizing the dynamic characteristics of GLD by choosing the counter pressure law is proposed that makes it possible to obtain a permanent traction law. An optimal diameter of the opening area of the depressurization valve is obtained as a result of one-parameter solution of a variational problem. The dynamic characteristics of the catapult configuration being tested are presented and evaluated.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):40-45
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Assuring the durability of transport aircraft structure in multipurpose use based on the results of endurance and flight tests
Fomichev P.A., Kleptsov V.I.
Abstract

An approach is proposed to determine the durability of transport aircraft wing structure in multi-purpose use. Relationships are obtained for durability calculations based on fatigue test results depending on typical flight profiles and their relative flying time in service. Dependences are obtained for the calculation of damages within the framework of the known discrete model of atmospheric turbulence. The possibility of refining the fatigue damage calculation using the experimental cumulative probability of flight overload increment is shown. Applying to Be-200ChS aircraft, the fatigue damage in firefighting flights obtained from flight test data was found to be 2.75 times greater than the value calculated by the known method.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):46-53
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Experimental research of wall boundary flow formation in the combustion chamber of a small gas generator with self-igniting fuel components
Shustov S.A.
Abstract

The paper presents a method of experimental investigation of physical processes taking place in the formation of a wall boundary flow. The object of investigation is described. The results of the experimental research are presented. They are related to such parameters as changes in the thickness, temperature and phase composition of the wall boundary flow. The results of comparing the thickness of the wall boundary flow and that of the boundary layer along the combustion chamber are given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):54-60
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Analysis of ablation process method errors for the definition of the temperature profile of high-temperature gas flows
Shustov S.A.
Abstract

The paper presents the analysis of ablation process method errors for the definition of the temperature profile of high- temperature gas flows. The main sources of the ablation process method errors are revealed on the basis of physical processes taking place when a high-temperature flow moves around a body. Numerical evaluation of each error source is given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):61-67
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MECHANICAL ENGINEERING AND POWER ENGINEERING
Research of growth rate of fatigue cracks in aluminum AK6 alloy depending on tension characteristics in the field of their progress
Aistov I.P., Vansovich K.A., Kruchkov A.N.
Abstract

The common growth criterion of fatigue cracks is offered for different degree of the biaxial tension. The specimen tension is investigated. Influence of biaxial loading on growth rate of a fatigue crack and its connection with a triaxial coefficient of a tension which can be calculated in an environ of a crack top is install.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):68-76
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Stability of swirl flows with radial density gradient
Anchikov D.A., Gusev V.A., Zavershinskii I.P., Makaryan V.G., Sugak S.S.
Abstract

The stability of an axially symmetrical stationary incompressible swirl flow with radial density jump in relation to infinitesimal spiral perturbations is investigated in the paper The dependences of perturbation frequency and increment on the swirl parameter, axial wave number and density jump are obtained. It is shown that perturbation frequency increases while its increment decreases with the increase in the medium density gradient.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):77-84
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The influence of design and performance parameters of an angular ball bearing on the stiffness of gas turbine engine rotor supports
Balyakin V.B., Zhilnikov E.P., Barmanov I.S.
Abstract

The paper deals with the influence of a radial bearing clearance, frequency rotation, as well as radial and axial forces on the displacement and stiffness of a ball bearing. The influence of the bearing stiffness on that of the support is assessed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):85-92
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Agreement between criterial equations of heat transfer in the process of cooling aluminium ingots and experimental data
Gorshenin A.S., Krivosheev V.E.
Abstract

The paper deals with the problem of agreement between the criterial equation for the determination of the heat transfer coefficient and the experimental data for the case of cooling aluminum ingots using the least squares method. An experimental unit for the cooling of aluminum ingots is described. Experimental data are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):93-97
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Tests of tubing made of aluminum alloy 1953T1 with wear-resistant thread-lined coats
Ivanova A.V.
Abstract

The most promising types of wear-resistant thread-lined coats have been determined according to the results of field tests. Using these coat types will result in considerable increase of the life time and work reliability of light-alloy tubing made of aluminum alloy 1953T1.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):98-102
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Optimal design of an induction heater of minimum length
Mednikova V.A.
Abstract

The paper presents the task of optimization of through-type induction heating installations (IHI) with a continuous delivery of metal semi-finished products for further plastic working. The task of optimal design of one-section and two-section heaters of minimum length has been formulated and solved.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):103-112
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Method of pipeline system designing taking into account complex interaction of static and dynamic processes with strength characteristics
Mironova T.B., Prokofiev A.B., Rodionov L.V.
Abstract

A method of pipeline system designing is presented in the paper. It takes into account the complex interaction of static and dynamic processes with strength characteristics. The method is designed for aircraft pipelines, as well as for those of power plants and mobile transport and industrial process pipelines.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):113-121
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Chemical gas sources
Novikov A.A., Ershikhin N.A.
Abstract

The paper presents the results of research in developing ways of burning gas-generating compositions (GGC) in combustion products forced convection conditions (CPFCC) and the factors that influence the design of a chemical gas source (CGS). The influence of the oxidant amount on the conditions and rate of fuel combustion in CPFCC is analyzed. The relative area of the channels is shown to affect the character of porous charge combustion. If the number of channels and their area increase up to 5%, the rate of combustion and the gas flow rate increase, while if the former increase from 5% to 25% the latter decrease. It was also found that multichannel units with fixed porosity ensure constant consumption and time characteristics, make it possible to get 10-15 – fold pressure reduction in the chamber and increase the length of the charge up to ten diameters.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):122-126
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Thermophysical properties of multilayered structures
Rapilbekova N.S.
Abstract

The developed methods make it possible to estimate the accuracy of certain proposals for analytical calculations of integral thermophysical characteristics of multilayered composites. For that purpose, the results of precise calculations of a multilayered structure’s thermal state are compared with the results of calculating a homogeneous body with indicated thermophysical characteristics. This comparison makes it possible to assess the applicability of analytical dependences for describing integral thermophysical characteristics of multilayered composites.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):127-131
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Analysis of schemes and methods of hydrodynamic cleaning of hydro-fuel system units
Sanchugov V.I., Reshetov V.M.
Abstract

The paper presents the results of research of hydrodynamic cleaning of hydro-fuel units. The modeling was executed in Matlab-Simulink using transfer functions for the circuit passive elements and the parameters of the flow oscillation source.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):132-139
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Flame propagation velocity and ionization in burning gasoline and methane with addition of hydrogen
Shaykin A.P., Ivashin P.V., Galiev I.R.
Abstract

The paper is devoted to the effect of adding hydrogen to CNG and gasoline on the electrical conductivity and the speed of the flame front. It is shown that the ion current in the CNG is determined by the mass fraction of carbon and the speed of the flame front propagation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):140-148
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ELECTRONICS, MEASURING EQUIPMENT, RADIO ENGINEERING AND COMMUNICATION
Converting sensor capacity into standardized signals with structural and time redundancy
Artamonov P.I.
Abstract

The principle of construction and implementation of devices converting sensor capacity into standardized signals intended for the use in industrial information control systems is discussed in the article.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):149-153
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Experimental simulation of registration of outer space objects
Baryshev Y.Y., Syomkin N.D., Voronov K.Y.
Abstract

The article describes a mockup onboard system for the registration of outer space objects. The results of measuring the position and velocity vector of the objects obtained by the described installation are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):154-163
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Models of lunar dust motion dynamics and methods of producing streams of charged dust particles in a laboratory environment
Syomkin N.D., Vidmanov A.S.
Abstract

The article presents basic physical parameters of lunar dust, models of its motion over the surface of the moon under the influence of space environment factors and a review of methods for obtaining dust streams in a laboratory environment.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):164-177
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Mechanisms of interaction of charged microparticles with the discharge electrode of the injector and the mass spectrometer target
Syomkin N.D., Vidmanov A.S., Bragin V.V.
Abstract

The paper deals with the mechanism of interaction between charged microparticles and the mass spectrometer target. Experimental data on measuring the ion flow parameters in case of high-speed impact of the charged particle are presented. The contribution of the charged particle’s potential and kinetic energy to the ionization of the mass spectrometer’s target matter is assessed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):178-186
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CONTROL, COMPUTER SCIENCE AND INFORMATION SCIENCE
Choice of parameters of meshing using estimates of conditionality
Avdeev E.V., Fursov V.A.
Abstract

The paper shows the dependence of matrix condition indicators and multicollinearity indicators on the dimension of the original problem mesh. Examples from an open integrated platform for the numerical simulation of continuum mechanics OpenFOAM tasks are given. The behavior of conditionality indicators and that of the diagonal dominance indicator are shown to be the same. An example of determining mesh dimensions with the help of the diagonal dominance indicator is given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):187-193
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Method of confocal laser fluorescence microscopy for the control of bone marrow cells
Zakharov V.P., Volova L.T., Timchenko P.E., Timchenko E.V., Boltovskaya V.V., Rossinskaya V.V.
Abstract

The paper shows the use of confocal laser microscopy for the assessing of viability of mesenchymal bone marrow stromal cells of a rabbit with the resolution of 400 nanometers. A three-dimensional structure of cells is obtained by this method.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):194-200
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Software for investigating the process of catalytical masking layer formation
Kolpakov V.A., Bonyachuk A.A.
Abstract

Based on the received numerical solution we have developed software which allows conducting automatic calculation of semiconductor atom concentric profiles and «vacancies» in the melt when the «metal - semiconductor» structure is treated by off-electrode plasma. It also makes it possible to determine the depth of alloying of the masking layer into the semiconductor subsurface (depth of the optical micropattern).

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):201-207
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Formation of light balls on the basis of interference of oncoming fine-focused beams with different polarizations
Khonina S.N., Ustinov A.
Abstract

The paper deals with the formation of spherical intensity distributions on the basis of the interference of oncoming fine-focused vortex beams with different polarization. The formation of three-dimensional distributions is accomplished in a simple way by optimizing the width and position of a single annular diaphragm. The optimum parameters are analytically estimated for a narrow ring aperture, while those for a broad diaphragm are further numerically corrected. It is shown that, depending on the polarization, the order of the vortex singularity and an additional phase advance in one of the beams both solid and hollow light balls of a subwavelength radius consisting of different components of the electric field can be formed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):208-224
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ECONOMICS AND HUMANITIES
Contribution of the all-russian research institute of aviation materials to space exploration (1950-1980)
Bannikova N.F.
Abstract

An attempt is made in the paper to identify and present the main areas of the institute’s theoretical and experimental development of new kinds of steel, alloys, and materials for the developing space industry. The most important results of the research carried out by the Institute’s specialists and scientists for space-rocket engineering are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):225-234
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Model of economic cooperation between an air carrier and airport structures
Titov B.A., Kropiventseva S.A.
Abstract

The paper deals with the factors affecting the economic performance of an air carrier, airport and airport structures. The target functions of the carrier and the service company are defined. A model of economic cooperation between the air carrier and airport structures is proposed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):235-242
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Quantitative assessment of the duration of «aircraft refueling» operation
Titov B.A., Kropiventseva S.A.
Abstract

The paper shows the range of acceptable values for the duration of the aircraft refueling operation with a view to ensuring the regularity of aircraft departure from the airport. The resulting range is the domain of tradeoffs between the air carrier and the fuel-supply company.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2013;12(2):243-247
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