Vol 11, No 4 (2012)

Full Issue

AIRCRAFT AND SPACE ROCKET ENGINEERING
Selection of sites and angles for placing star coordinators of remote sensing satellites
Akhmetov R.N., Kurenkov V.I., Stratilatov N.R., Fedorenko O.G., Shilov L.B.
Abstract

The work deals with mathematical models and a simulation algorithm for the estimation of the relative time necessary for directing the axes of celestial coordinators to the sky regions, excluding the possibility of sunlight exposure and Earth shielding.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):11-17
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Peculiarities of Earth observation space vehicle control in contingencies
Akhmetov R.N., Makarov V.P., Sollogub A.V.
Abstract

The problem of Earth observation space vehicle control in contingencies is posed. Survivability behavior of unmanned spacecraft is defined. The principles of constructing a system for space vehicle survivability control are discussed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):18-28
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Improvement of the flight attitude control accuracy of the Earth observation spacecraft
Akhmetov R.N., Sollogub A.V., Makarov V.P., Golovchenko A.A., Filatov A.V.
Abstract

The paper presents the problems of assessing the relative position of angular accelerometer sensitivity axes and astromeasuring basis of the attitude control system as part of flight calibration of a platformindependent inertial system. The inaccuracy of the angular accelerometer is defined and taken into account. An algorithm of in-flight geometrical and parametric calibration of the meter is suggested.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):29-37
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Integrated system of controlling Earth remote sensing spacecraft on the basis of multifunctional usage of onboard equipment with the aim of minimizing mass-energy and cost parameters
Belov Y.V., Shikhanov S.V.
Abstract

The paper presents a promising integrated system of controlling Earth remote sensing (mapping) spacecraft on the basis of multifunctional usage of onboard equipment with the aim of minimizing mass-energy and cost parameters, i.e. more full realization of the equipment’s potentialities through its use in several onboard systems.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):38-43
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Analysis of uncontrolled motion of the “ Soyuz “ carrier rocket orbital stage after payload separation
Belokonov I.V., Storozh A.D., Timbai I.A.
Abstract

Two variants of uncontrolled motion of the “ Soyuz “ carrier rocket after spacecraft separation are discussed in the paper: the motion of the upper stage after the completion of the work of the jet nozzle producing additional force that takes the upper stage away from the spacecraft; and the motion of the stage in case the mode of using the jet nozzle is eliminated in the cyclogram of “ Soyuz “ operation. Probability models of the initial conditions of angular motion are constructed. The peculiarities of the orbital stage motion are revealed, i.e. that it is possible to maintain certain angular orientation during the period of time sufficient for successful performing of navigation-communication tasks in the course of short-term research experiments on the “ Soyuz ” carrier rocket orbital stage after payload separation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):44-51
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Dynamics of spacecraft landing in the area of its contact with the surface
Voronin V.V.
Abstract

The paper presents a mathematical model of the dynamics of spacecraft motion on the surface since the moment of their contact. The spacecraft body and the elements of the spacecraft’s landing structure are regarded as a mechanical system of complex structure with internal connections. The algorithm of determining the reactions of these connections is obtained. The key parameters that affect the dynamics of the process are revealed, the safety of landing within the limits of concrete restrictions is analyzed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):52-58
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The use of computational methods for the parametrization of the angular motion control program in on-board control systems of Earth remote sensing spacecraft
Galkina A.S., Manturov A.I., Pyrinov N.I., Yurin V.E.
Abstract

The paper deals with the problems of generation and implementation of spacecraft angular motion control programs, the peculiarities of their parametrization for different flight legs in the sensing interval for the RESURS-P spacecraft onboard control system. The conditions of design and parametrization of control programs are systematized.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):59-68
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Adaptive algorithm of determining low altitude spacecraft orientation on the basis of processing instant diverse-type measurements
Grigoryeva M.Y., Kramlikh A.V.
Abstract

The paper deals with the problems of constructing the adaptive algorithm of determining low altitude spacecraft orientation on the basis of processing instant diverse-type measurements (radio navigation, magnetometric measurements). The loosely coupled and tightly coupled schemes of integrating magnetometric and radionavigation information as well as the algorithm of determining orientation based on the analysis of GLONASS/GPS navigation satellites’ spatial location form the basis of the adaptive algorithm.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):69-75
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Small-sized two-coordinate sensor of the Sun’s angular position with enlarged field of view
Dyuldin R.S., Blinov V.D.
Abstract

Possible approaches to the designing of a new generation sensor of the Sun’s position distinguished for its reduced mass-size specifications and an enlarged field of view are discussed in the paper. Brief analysis of the elemental basis necessary for the construction of the device is made. The results of power and precision modeling as well as the designed exterior view of a new generation sensor of the Sun’s position are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):76-79
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Algorithms for the identification of star patterns in the task of correcting the inner orientation elements
Ivanov A.V., Pashentsev D.Y., Tishkin R.V.
Abstract

The paper presents basic approaches to the solving of the task of identifying star patterns for their further application in the technology of calculating the vector of spacecraft optical system inner orientation parameters.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):80-87
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Dynamics of multilink solar panel deployment process
Ilyasova I.R.
Abstract

A dynamic model of spacecraft solar panel deployment is developed. In describing the motion each body of the system (spacecraft, panels, rods) is considered to be a free one. The action of other bodies on it is accomplished by means of imposed kinematic constraints. A system of equations to determine the reaction of constraints in an arbitrary node of solar battery panel deployment is derived. The main integral parameters of the deployment process are identified: the dependence of the system’s energy, deployment angles and angular velocities of panels and rods on time, the sequence of fixing the panels and rods, the time of the deployment process.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):88-94
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Method of choosing spacecraft design characteristics on the basis of creating task-oriented systems of computer-aided design
Kucherov A.S., Kurenkov V.I.
Abstract

The paper deals with the problem of developing task-oriented systems for computer-aided solving of the tasks of spacecraft design with their correctness verified and the sequence of performing the calculations defined. The operation of the software developed in the DELPHI environment is illustrated by the example of determining mass characteristics of the temperature control system.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):95-102
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Assessment of changes in the sound-proof ability of the rocket fairing with layers of sound-proof materials varying in thickness
Popov P.A.
Abstract

The paper presents a method that makes it possible to assess the changes in the sound-proof ability of the panels of the head part of a rocket, considering all the heterogeneities of its structure. The results of calculating the influence of removing part of the sound-proof material from the surface of a standard head part of a rocket on the ultrasonic pressure under the head part are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):103-110
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Modeling dynamic processes of response of fuel pressure-operated valves of superheavy launch vehicles in the tasks of providing structural strength
Sazanov V.P., Chirkov A.V.
Abstract

A procedure for calculating the dynamic loading on the response of pressure-operated valves is proposed on the basis of the experience of designing a group of pressure-operated valves of the oxidation system of the “Energiya” launch vehicle’s central block.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):111-115
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Peculiarities of solving three-dimensional problems of flow about a launch vehicle with large nose fairings using the ANSYS FLUENT software
Kharitonova A.N., Shakhov V.G.
Abstract

The basic modes of flow about a launch vehicle with large nose fairings are discussed, some actual trajectories taken as an example. The Reynolds and Mach numbers are calculated on the basis of the parameters of the given trajectories, the modes of flow about the launch vehicles are determined. The possibility of using the ANSYS FLUENT software for the simulation of the flow about a launch vehicle on the actual trajectory is dealt with.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):116-123
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Experimental verification of the specified characteristics of a solar battery at the stages of production and ground operation
Shuplyak Y.P., Sorokoletov V.I.
Abstract

The paper deals with one of the directions of upgrading the quality of a solar battery for a space vehicle of the “Bion-M” type connected with the experimental verification of the specified characteristics at the stages of its production and ground operation. The structure of the solar battery panel and the deployment mechanism are presented. Their joint operation during the opening of the panels is described. The directions of ground experimental optimization of the system “Solar battery + Deployment mechanism” are listed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):124-133
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MECHANICAL ENGINEERING AND POWER ENGINEERING
Life testing of pipeline elements
Boltenkova O.M., Davydov O.Y., Yegorov V.G.
Abstract

Life tests of pipeline elements such as a strongly curved branch pipe by pulsating internal pressure have been carried out. In the course of the tests it was established that the pipes formed by flexible pushing through a die with the internal pressure of the filler and those produced by flexible expansion with elastic medium have cyclic longevity exceeding the resource of an airframe.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):134-138
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Automated construction of a 3D plane model at the stage of technical proposals
Borgest N.M., Aleev R.H., Aksanian P.A., Gromov A.A.
Abstract

The paper deals with the problems of automation in constructing 3D models of plane configuration at the stage of technical proposals. The results of the developed parametrical 3D model of traditional-configuration planes in the CAD CATIA system with changeable parameters of the plane’s main units are presented. The emphasis is on the creation of the plane’s external and internal configuration, the determination of a preliminary constructive scheme of the plane’s main units and its coordination with the layout designs in the automatic mode.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):139-148
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Procedure of calculating efforts of blank stretching without corrugation in stretch forming
Dementyev S.G.
Abstract

The paper presents a procedure of calculating efforts of sheet blank forming which makes it possible to reduce the probability of corrugation in stretch forming and the labor input.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):149-154
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Using a digital camera in a speckle – interferometer optical scheme for the analysis of static deformations in gas turbine engine elements
Zhuzhukin A.I., Solyannikov V.A.
Abstract

The article deals with a speckle-interferometer modification with a speckle-modulated reference wave and bunches passing the same optical way by means of including a digital camera in the speckle-interferometer optical scheme. The modified speckle-interferometer is used for the analysis of compressor blade deformation displacements during static tests. The use of a digital camera makes it possible to increase the image contrast of interference bands and the range of acceptable deformation displacements.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):155-161
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Analysis of the stressed state of high-speed extrusion process
Kostyshev V.A., Pityugov M.S.
Abstract

The paper is devoted to the analysis of the stressed state of the process of high-speed extrusion. Factors that influence the stressed state at all stages of shape-forming are analyzed in detail. The influence of inertial forces on the force parameters of extrusion is discussed. The relationships required to determine power conditions of forming are given. Profound analysis of modeling the process of high-speed extrusion of a gas turbine engine compressor blade is carried out. The results of modeling confirm the theoretical conclusions.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):162-167
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Modeling oil separation in the impeller of a radial-type centrifugal breather
Petrukhin A.G., Tryanov A.E.
Abstract

The paper describes modeling of oil separation in the impeller of a radial- type centrifugal breather. The derived equation proves that with the chosen diameter and width of the wheel passage, the assigned breather rotor speed and a certain air-oil mixture volumetric flow rate the relative diameter of the impeller blade outer section presents an essential geometric parameter that defines oil separation capacity.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):168-175
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Mathematical model of investigating normal acoustic modes of launch vehicle modules
Popov P.A., Belov A.S., Kryuchkov A.N.
Abstract

The article presents a method which considers the influence of fuel and oxidizer tanks of a launch vehicle on sound propagation in the inter-tank space. An example of finding resonant acoustic modes and frequencies of a launch vehicle module and the analysis of sound-insulation characteristics of the module are also given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):176-183
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Stabilization of a pilot-operated gas pressure control valve by placing a throttle at the inlet
Stadnik D.M., Sverbilov V.Y., Makaryants G.M., Makaryants M.V.
Abstract

The paper presents the analysis of the influence of a throttle installed at the inlet of a pilot-operated gas pressure control valve on the system dynamics in terms of providing the required accuracy and stability over a wide flow range.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):184-192
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Assessing the impact of non-through cracks (scratches) on the structural strength when designing aircraft
Yakovlev A.S.
Abstract

The aim of the paper is to determine the area of possible ultimate states of a plate made of an ideal elastoplastic material in a plane taut state, with the plate having a blind fractured defect (a scratch). This problem is of a more general character and presents a greater practical interest than just a scratch problem since in thinwalled constructions and enclosures whether it be plane fuselage or rocket fuel tanks etc. there always exist damages resulting from external actions and transforming into scratches in the process of operation.

It their turn, scratch dimensions will gradually increase as a result of cyclic loads arising during operation. There naturally arises a problem of determining the ultimate dimensions of these defects which can result in the fatal failure of the whole structure at a given level of operating loads.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):193-197
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ELECTRONICS, MEASURING EQUIPMENT, RADIO ENGINEERING AND COMMUNICATION
Algorithm of clock synchronization and evaluation of noise power invariant to multipathing and the kind of modulation
Khalilov R.R.
Abstract

An algorithm of clock synchronization and evaluation of noise power based on the use of repetition of parts of a multipath signal is presented in the paper.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):198-203
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CONTROL, COMPUTER SCIENCE AND INFORMATION SCIENCE
Modelling the propagation of sharp focused laser beams through scanning probes of different shapes
Degtyaryov S.A., Khonina S.N., Skuratov D.L.
Abstract

The paper presents an analysis of the possibility to detect sharp focused radiation with the help of variously shaped probes. The relations of a beam’s energy characteristics at the input and output of variously shaped scanning probes with different diameters of input windows are worked out. The sensitivity of a tapered dielectric probe to sharp focused radiation with the dominating longitudinal component of the electric field in the central peak of the focal spot is demonstrated.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):204-209
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Comparison of focusing pulse beams with different polarization and duration by a refractive axicon
Meterko A.V., Khonina S.N.
Abstract

The focusing of short and long pulse light beams is simulated using the time-domain finite- difference method with the aid of a refractive axicon. It is shown that the duration of the beam pulse has no effect on the average intensity of the picture in the focal plane, however, very high peak power can beachieves when using short pulses. The numerical results for different types of polarization of the beam incident on the axicon are compared. It is shown that in a tightly focused regime the energy is redistributed between the radial and longitudinal components of the electric field, while the azimuthal component of the energy remains unchanged.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):210-217
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Parametrical optimizing of a transfer air transportation system in conditions of uncertainty
Romanenko V.A.
Abstract

The problem of flight timetable optimization is solved on the basis of the fuzzy set approach taking account of the parameters of ground service technological schedules for an airport operating within the framework of the transfer system of air transportations. Methods of expert evaluation and statistical processing of the airport information system statistics are used in forming fuzzy input data. An example of a problem solution is given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):218-228
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Comparative analysis of parabolic lens and axicon in geometric and scalar paraxial optical models
Ustinov A., Karsakov A.V., Khonina S.N.
Abstract

Accurate analytical expressions are deduced in the framework of a scalar paraxial wave model for the distribution of complex intensity along the optical axis of a parabolic lens and that of an axicon. The expressions are analyzed and compared with the results of ray-optical approximation. Increasing the intensity in the lens focus by increasing its radius is shown to be impossible, whereas it is possible in the case of an axicon.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):229-239
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ECONOMICS AND HUMANITIES
Methods of risk management in quality management system processes at an airport (case study)
Barvinok V.A., Samokhvalov V.P., Kulakov G.A., Ryzhakov V.V., Klochkov Y.S.
Abstract

The paper deals with the problem of risk management in developing quality management system processes. A model of FMEA-analysis based on the calculation of the priority number of risks for inconsistencies, their causes and consequences taking into account changes in the "incidence" and “capability of detection” with the simultaneous occurrence of several adverse events.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):240-246
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A model of monitoring the demand function in the context of a polipoly with the "ASK-RENTGEN" enterprise taken as an example
Bogatyrev V.D., Levitan V.G.
Abstract

The paper presents a model of monitoring the functions of consumer demand required for the generation of baseline data for the planning of production activities of an enterprise in a heterogeneous polipoly. The use of the proposed model is discussed with the "ASK-RENTGEN" enterprise operating in the market with cyclical variations in demand taken as an example.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):247-258
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Measurability of knowledge and competences in studying humanities
Ryabinova E.N., Titov B.A., Pavlova I.O.
Abstract

The paper deals with the problem of measurability of knowledge and building competences in vocational education in the study of humanities. It is shown that personalized education based on the measurability of the process of mastering of the training material and the adequate support of the instructional process is to play a significant part in modern education.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(4):259-266
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