Vol 8, No 3-1 (2009): Special Issue

Full Issue

AIRCRAFT AND SPACE ROCKET ENGINEERING
Wearability, wearproof and heat-shielding coverings for details of the gas path of the turbine, the compressor and the chamber of combustion of gas turbine engine
Barvinok V.A., Shitarev I.L., Bogdanovich V.I., Dokukina I.A., Karasev V.M.
Abstract

The basic laws and features of plotting of wearability, wearproof and heat-resisting coverings on a detail of a gas path of the turbine, the compressor and the combustion chamber of gas turbine engine by gas-thermal plasma and ionicplasma vacuum methods are considered. The basic updates and elements of modernisation of the equipment for gasthermal and an ionic-plasma vacuum method are shown. For calculation of the temperatures, flowing and residual pressure real cases and receptions at spraying are considered.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):11-28
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Thermal deformation influence to cryogenic pumps seals operability
Ivanov A.V.
Abstract

The bush seals and seals with semi-movable rings are widely used in rocket engines turbopumps. One of abnormal function of this seals causes is – contact of rotor and stator elements. This occurs due to incorrect selection of seal clearance that connected with thermal deformations.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):29-33
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Centrifugal force field effect consideration in dynamics investigation of blade wheels
Davydov D.P., Ermakov A.I.
Abstract

The disk finite element was developed for structural analysis of rotating nonuniform heated disks from the gas turbine engines. FORTRAN code program was developed for structural analysis of rotating nonuniform heated disks from the gas turbine engines.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):34-39
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Disk harmonic finite element
Davydov D.P., Ermakov A.I.
Abstract

The disk harmonic finite element was developed. FORTRAN code program was developed for modal analysis of rotating nonuniform heated disks from the gas turbine engines. Natural frequencies of disks were explored.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):40-45
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Pressure-gain combustion and its potential for gas turbine engine enhancement
Lutoschkin E.V., Rose M.G., Staudacher S.
Abstract

Despite its simplicity the quasi-isobaric, steady-flow combustion in gas turbines has been identified to have major disadvantages. The highly irreversible heat addition process in conjunction with inevitable loss in stagnation pressure represent an obvious penalty to engine performance and limit the thermodynamic cycle efficiency. This intrinsic drawback of conventional gas turbine combustion can be substantially improved by introduction of pressuregain combustion. The main advantage of pressure gain combustors is their potential for a significant rise in thermal cycle efficiency, its magnitude essentially depending on the specific device chosen. The thermodynamic advantage of pressure-gain combustion is analysed and shown as a function of the combustor pressure ratio for various gas turbine engine setups. Further, the aim of this paper is to summarize the status and important research efforts in this field. A compilation of proposed pressure-gain combustor concepts is presented with regard to its performance, mechanical complexity and suitability for use in gas turbines.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):46-56
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An EHD analysis of complex–loaded bearings
Rozhdestvensky Y.V., Hozenjuk N.A.
Abstract

An elaslohydrodynamic lubricating model is presented for the problem of a hydrodynamic lubricating fluid in elastic structure that includes distributed structural inertia. The Mass-conserving fluid method has been used. In the present work, an EHD simulation has been conducted for a big end connecting rod bearing.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):57-64
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Agency of members of the pulse detonation engine on thrust characteristics
Porshnev V.A.
Abstract

In paper agency of members (depth of the room, a diffusor and an ejector), rendered on tractive characteristics of the pulse detonation engine (PDE) is observed. The essence of computing experiment is stated, its results are resulted. Besides the generalised results of fire tests of demonstrator PDE are resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):65-73
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Use of the mathematical tool of hypervector ranging for selection energy-power plant of flight vehicles
Safronov V.V., Zhebrakov A.S.
Abstract

The problem of selection of effective versions energy-power plant and versions of their design for various flight vehicles at a design stage which is reduced to a problem of hypervector ranging is observed. The method of its solution based on a method of "rigid" ranging is offered. The numerical instance is resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):74-81
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Use of approximative analysis outcome of experiment in problem of diagnostics technical conditions of hydraulic systems
Malchikov K.Y., Logvinov L.M., Kovalev M.A.
Abstract

The problem of increasing the sensitivity of the built-in control sensors of parameters particles of contamination in a working fluid of hydraulic systems is considered. We offer the algorithm of processing of experimental data about distribution of contamination particles powder. The technique of forecasting distribution of contamination particles powder in the size less then 5μm by data about distribution of larger particles is described

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):82-88
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Proactive maintenance of hydrosystems on the basis of the analysis of parameters of particles of contamination of hydraulic fluid
Kovalev M.A.
Abstract

The problem of increase reliability of hydrosystems is considered due to application of proactive maintenance technologies. As an integrated diagnostic attribute of proactive maintenance of hydrosystems the particle size distribution of contamination a hydraulic fluid is used. It is specified on necessity of change a quality monitoring and a technique a rating this parameter.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):89-96
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Firing test stand pulse detonation low-thrust engines
Govorenkho G.S., Teterin D.P., Kotelnikhov D.S., Aliluev A.V., Aliluev S.V., Fedorets V.N.
Abstract

In the article experience of creation a test stand of pulse detonation engines is stated. Stand operating modes, representation and information machining, order of conducting fire tests are presented structure and functions of the test stand, possibility used technical and software.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):97-105
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Teachers` readiness to use distance technologies as a guarantee term to modernize education
Belousov A.I., Gromova T.V.
Abstract

In the article the issue of organizing special tutors` training for teaching in the system of distance education is examined. The lack of tutors or their insufficient readiness (professional, psychological and technical) to fulfill tutor`s activity seems to be the main obstacle in introducing distance learning in the Russian educational system. Identifying the level of teachers` readiness to fulfill tutor`s activity is the first step in the developing stages, topics and problem spheres of their training in modernizing process of the educational system of in Russia.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):106-114
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The analysis of experimental work efficiency of forming teachers readiness to fulfill tutor’s activity
Gromova T.V.
Abstract

In the article the results of testing the efficiency of the developed model and technology of forming teachers readiness to fulfill tutor’s activity is being analyzed. The lack of tutors or their insufficient readiness (professional, psychological and technical) to fulfill tutor’s activity seems to be the main obstacle in introducing distance learning in the Russian educational system.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):115-122
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Project of 30 000 h.p. power gas turbine
Zrelov V.A.
Abstract
This article describes the results of German specialists employment in state unit plant №2 in 1948. They developed project of 30 000 h.p. power gas turbine.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):123-127
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Investigation of friction joints working in nuclear plant with heat transfer medium consist of heavy high temperature liquid metal
Drozdov Y.N., Beznosov A.V., Makarov V.V., Puchkov V.N., Antonenkov M.A., Kuznetsov D.V.
Abstract

The experimental equipment developed for the decision of tribological problems, arising at use of friction joints in the environment of heavy liquid metals is submitted as heat-transfer medium for contours of nuclear power installations. For researches of fretting-corrosion of heat release pipes in contact with spacer grid cell the installation modelling a fretting process in the contacts with the purpose of a substantiation of vibration strength of a steam generator of a reactor on fast neutrons with the lead heat transfer medium is created. Experimental installation for research and resource tests of cylindrical involute gearings and the sliding bearings working in reactors on fast neutrons in the environment of the lead heat transfer is described. Experimental samples of circulating pumps for reactor installations, intended for research of wear process characteristics of steel and cast iron sliding support working in the environment of lead, eutectic alloys lead - bismuth and lead - lithium are developed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):128-136
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Organization of training of the CAD/CAM users in the specialized scholastic-industrial centre of the technical university
Cherepashkov A.A.
Abstract

In article are discussed the problems of training to designing of mechanical engineering products. Systems and methods of computer aided design which are used in the school of mechanical engineering of the Samara technical university are analyzed. Experience of creation the CAD/CAM/ -center are described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):137-142
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Influence of width of the filter on characteristics of discrete components of the spectrum of vibration of gas turbine engine
Sundukov A.E., Nikolaev V.A., Sundukov E.V.
Abstract
Influence of width of the filter on characteristics of intensity and kind of density of distribution of instant values and bending around narrow-band components of a spectrum of vibration of gas turbine engine is considered. Experimental data of width of discrete components of a spectrum of vibration of engines of series NK of land application are received.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):143-146
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The analysis of influence of parameters of the spectrum of maxima on efficiency of allocation modulating components of vibration of gas turbine engine
Sundukov A.E., Sundukov E.V., Nikolaev V.A.
Abstract

On the basis of modelling of the modulated fluctuations influence of width of "window" and the chosen frequency range on efficiency of allocation of a modulating component is shown by a spectrum of maxima. The comparative analysis of a spectrum bending around and a spectrum of maxima is carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):147-151
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Vibration diagnosis not centered shafts connected by gear gearing
Roslyakov A.D., Nikolaev V.A., Sundukov A.E., Sundukov E.V.
Abstract

The theoretical analysis of a spectrum of the vibration generated by not centered shafts, connected by gear gearing. For the first time it is shown under what conditions generation of the third harmonic of frequency of rotation of rotors is possible. Results of the analysis are confirmed by an experimental material.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):152-156
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Invariancy of vector models in modelling tooth gearings
Kosenok B.B.
Abstract

Bases of a method of mathematical modelling are resulted, statement of a problem of necessity of modelling tooth pumps is made, the analysis of possible construction of the vector model describing a surface of a tooth, the variant of construction of vector models with use of "intermediate" arguments of model is chosen. The given research proves a technique of modelling of tooth gearings on the basis of a method of mathematical modelling the vector closed contours and shows the some advantages of similar modelling.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):157-161
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Restarch tunetionality serewing tap by ultrasounl oscillation
Golovkin V.V., Trusov V.N.
Abstract
Parallel resealing screwing tap ultras with regular screw cutting and screw cutting and screwier tap witty wear protein.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):162-166
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The oretical substantiation of the constructive scheme of the air-gas tract rinsing device for GTE
Silaev B.M., Mal’tsev E.N.
Abstract

The theoretical substantiation of the constructive scheme of the air-gas tract rinsing device for gas turbine engine (GTE) is lead. The interrelation of device construction with geometrical parameters of engine entrance part and parameters of an air stream is shown, calculated proportion for evaluation of key parameters of the device are resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):167-171
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Questions of HCF for materials and details modern GTE
Petukhov A.N.
Abstract

Account problems at stages of a choice of constructional materials of features of manufacturing techniques of details and the operational factors influencing HCF are considered

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):172-177
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Processing of experimental data by the method of the least squares
Ovchinnikov A.V., Krasnochub E.K., Bronstein V.M.
Abstract

The particular case of application of a method of the least squares is considered. The analysis of conformity of received before without application of the method of the least squares formulas for heat transfer factors at movement of fluids in pipes to the best decisions is carried out. New analytical dependences for definition of the specified factors of heat transfer are offered.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):178-187
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Modeling stable growth of fatigue cracks in aero engine turbine discs under simple and complex loading cycles
Tumanov N.V., Lavrentyeva M.A., Cherkasova S.A., Servetnik A.N.
Abstract

Techniques for modeling stable fatigue crack growth in highly stressed structural parts under simple and complex loading cycles have been developed which are based on the theory of local high-energy-type fracture mechanism acting at a crack front in the second stage of fatigue crack kinetics. The techniques have been verified with the use of 3D finite element modeling and microfractographic reconstitution of fatigue crack growth in aero engine turbine discs.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):188-199
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Increase of stability of technological systems at processing of details aircrafts engines
Skuratov D.L., Burmistrov E.V., Samykin V.N.
Abstract

The reasons of occurrence and development of self-oscillations are considered at processing by cutting. The mathematical model of self-oscillatory process is offered at processing of deep apertures which has allowed investigating influence of various factors on intensity of vibrations and stability of system. Taking into account results of theoretical researches designs of boring tools with the raised stability to vibrations have been developed. Experimental researches have confirmed adequacy of mathematical model and have allowed planning ways of increase of stability, quality and productivity of processing.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):200-206
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Experience of using the end-to-end design systems for engineering of high-speed and high-efficiency machining in aircraft industry
Kazakov A.A., Konuhov A.V.
Abstract

This article describes the actual experience with the integrated CAD/CAM system for the high-speed and highefficiency machining in the aircraft industry. Author examines the most important aspects of the machining, influencing the efficiency of the selection. New high-performance cut-maps are presented in the article. It also contains the practical results of machining of parts made of the aluminum alloy and stainless heat-resistant steel.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):207-211
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Analysis and ballistics project the gun tube system with a joined drive on chamber
Safronov A.I., Potapenko V.V.
Abstract

On the basis of the mathematical model of internal gun's ballistics with two phases and two velocities of phases the numerical simulation of non traditional scheme of throwing was carried out. The possibility of increasing of initial velocities of missiles with Cq=4,55 kilogram - force per cubic decimeter at about 7% comparison with classical scheme of throwing on conditions that maximum pressures are invariable.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):212-216
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Seal designing in a structure of the cooling system in gas turbine engine
Vinogradov A.S., Myatlev A.S.
Abstract

The seal design influence on work of the secondary air system in gas turbine engine is shown. The design method of the such system with the definition of mutual influence of gas seal and radial gap change is generated. This methods and means for practical realization are recommended at the engine design.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):217-221
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Research of a seal work as an element of the air engine support
Vinogradov A.S., Rempel A.P.
Abstract

The analysis of a seal work as an element of a engine support is executed. The features of heat exchange processes from the surrounding support housing air through walls to oil are considered for the various types of engines. For a concrete example the size of a thermal flow and temperatuere level for the walls washed by oil is valueted. The recommendations about the rational protection choice for the walls of an oil cavity are given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):222-226
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Creative 2D-modeling
Bykov A.V., Karabcheyev K.S.
Abstract

The CAD system world already became 3D. But 2D modeling is still actual for many of engineering tasks. This article gives the retrospective for 2D modeling tools in CAD systems and explains some special methods, used in ADEM-VX system. Samples are given in 2D solid mechanism and layer-mechanism for assembly creation in 2D.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):227-230
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Simulation of the distributed selection and supply of cooling air in gas-turb engine
Goryunov A.I., Goryunov I.M.
Abstract
Mathematical models GAS-TURB ENGINE are considered in view of the distributed selection of air from the compressor and the distributed supply of cooling air in the turbine.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):231-234
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The algorithm of calculation combined energy installations, based on turbojet and SOFC
Loskutnikov A.F., Bakirov F.G., Gorjunov I.M.
Abstract

We offer the algorithm of calculation combined energy installations, based on turbojet and SOFC. You can find а scheme of calculation SOFC. Here you can investigate the description of various main hybrid electrochemical power engineering install based on turbo jets and fuel cells.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):235-243
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The integrated information model architecture for working out, manufacture and operation GTE together with its system of automatic control, the control and diagnostics
Kulikov G.G., Rizvanov K.A., Denisova S.S.
Abstract

In work the approach to formation of complex architecture of information model for GTE with its electronic system of automatic control, the control and diagnostics is offered. It is considered at stages of experimental operational development, preparation of manufacture, manufacture and operation GTE.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):244-252
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Theoretical definition of temperature fields at thermoplastic hardening of details of gas turbine engines
Barvinok V.A., Vishnyakov M.A., Ignatiev S.A.
Abstract

In work the technique of theoretical definition of temperature fields at thermoplastic hardening is presented. As an example results of calculations for unilateral cooling of a large-sized detail of type of a disk of the turbine of gas turbine engines are shown. Comparison of settlement and experimental temperature fields is resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):253-259
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Rotor-vane compressor with working chambers contactless condensation optimizations variants
Kolomin I.V., Dovgjallo A.I., Galperin R.N., Gulyaev L.Y., Logashkin A.P.
Abstract

The review presents rotor-vane compressor (RVC) optimizations ways to improve its characteristics. The promising nature of operating RVC in structure of the compressor block of microcryogenic cooling system is shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):260-264
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Modeling of the heat exchange processes
Limanova N.I., Mamzin E.A., Matveev S.G.
Abstract

The heat exchange processes computer models in combustion chambers of power installations have been elaborated with the help of cellular automata. The peculiarity of worked out models is in calculation of not homogeneous heat conduction coefficient in examined field. Comparison with analogs shows increase of computer models precision and rise of calculations rate in more than 4 times.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):265-269
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Models competence of bachelor and master’s degree for innovation machine building
Belashevsky G.E., Kozlov D.M.
Abstract

The task of harmonization of requirements to the specialists is discussed on the example of Bachelor and Master’s degree competence models for high-technology innovation machine-building. The requirements are in National Qualification System, Professional Standards as well as Federal State and Educational Standards. The results of priority peer review of Bachelor and Master’s degree competence are given. The methods of using the peer review obtained for construction of the basic educational program and curriculum are suggested.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):270-276
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Estimation the factors, make the greatest influence on reliability parametres of a GTD disk with a glance sudden failures
Belousov A.I., Gritsin A.V.
Abstract

In this work the methodology of an estimation of parameters of reliability GTD with a glance sudden failures is presented. By this methodology the analysis of influence of the limit of the geometrical sizes, rotating frequency and disk material density on failure rate is carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):277-283
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Features of the new gas turbine aviation engines theory course
Mingazov B.G., Kosterin V.A., Varsegov V.L.
Abstract

Some features of the new gas turbine aviation engines theory course published by professor Kulagin V.V. are described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):284-290
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Technical solutions of NOx decrease in traditional combustion chamber of GTE NK-16ST
Markushin A.N., Merkushin V.K., Byshin V.M., Baklanov A.V.
Abstract

The results of traditional combustion chamber with modified consruction examinations are presented. Decreased concentration of toxic agents emisions in comparison with serial combustion chamber is reached.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):291-297
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Formation of a structural calculated mesh the passage blade of the axial turbine in program GAMBIT
Baturin N.V., Baturin O.V., Matveev V.N.
Abstract
Article is devoted to a formation of a structural calculated finite element mesh of the passage blade of the axial turbine in program Gambit. Possible ways of construction of calculated model in the program are considered, the analysis on basis of what the new way allowing to create a better structural mesh has been offered, thereby to raise accuracy of calculation.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):298-304
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Working out the system of technical decisions for ensuring the reliability of friction units of gas-turbine engines
Gromakovsky D.G., Kovshov A.G., Ibatullin I.D.
Abstract

Results of working out of system of technical decisions for ensuring the high quality of friction units of gasturbine engines are described in the report, including the model for calculating the wear resistance of friction units, new scratching method and tester for estimating the activation parameters of deformation and destruction of surface layers, methods of hardening the details of friction pairs and other offers.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):305-312
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Spiritual-moral education of students of younger rates of space university
Okorochkova V.M., Starostina A.P.
Abstract
In the report experience of introduction of theological discipline of “Religion of the world” at the Samara state space university is stated and generalized. The subjects of lectures, results of questioning are resulted, necessity of excursions on temples of various faiths is proved.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):313-317
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About the thermal protection of the oil cavities for designing gas turbine engines
Tryanov A.Y., Grishanov O.A., Vinogradov A.S.
Abstract
The necessity of a effective thermal protection for a oil cavities in the air engines with the high temperature level is proved. For turbojet bypass engines the influence on the reliability of the following factors is shown. There are a choice of the turbine constructive scheme, a structure of cooling air flows inside the turbine and a the turbine oil cavity.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):318-328
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Influence of micropolar properties of oils on dynamics of complex-loaded journal bearings
Zadorojnaya E.A., Karavaev V.G., Levanov I.G., Chesnov A.V.
Abstract

The design procedure of hydromechanical characteristics (HMC) of bush bearings under combined load greased by micropolar fluids is considered. The theory of current of micropolar fluids by Eringen is put in a basis. The effective temperature of a lubricant film of the bearing of final length is calculated from the equation of thermal balance. Are solved test problems and influence of parameters of micropolar oils on HMC bearings of a crankshaft of an internal combustion engine is estimated.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):329-337
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Improvement of a design piston of diesel engine of tractor
Rogdestvensky Y.V., Doykin A.A., Murzin V.S.
Abstract

The regular piston, the piston with gallery oil cooling and steel piston of the forced diesel engine are investigated. In the course of calculations hydrodynamic lubrication theory based, their hydromechanical characteristics has been evaluated. Optimum parameters of design skirt for each piston are found, allowing to reduce power loss, oil consumption in a direction of combustion chamber, to increase minimal thickness of a lubricant layer.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):338-341
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Heat-pipes’ application for cooling of communications-electronics equipment
Biryuk V.V., Kitaev A.I.
Abstract
In thus paper it is shown analysis and results of experimental research of design and making shaped heat-pipes in order to cool communications-electronics equipment of rockets’ engines.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):342-345
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Investigation of extreme opportunities of stand supporting systems
Samsonov V.N., Kozyreva M.S., Cherevan A.A.
Abstract
The work deals with the forming of the structure of testing complex for working out vibration strength of heavy objects due to the conditions and the level of dynamic correlation of its elements.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):346-349
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Study of state surface of substances in dual-phase vapor-liquid region
Mikheyenkov E.L., Chervyakov M.V.
Abstract

Using construction of Carnot cycle for several gases as an example, the model of state surface for substances based on van der Waals model is proposed for detailed consideration by students. This allows the students to study both Carnot cycle and the concept of phase transition of substance in vapor-liquid region.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):350-356
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Creation of means of protection against vibration for the manual mechanized tool of rotary and shock action
Vjakin V.N., Izranova G.V., Lukanenko V.G.
Abstract

Designs of systems internal and external vibrating isolation manual machines of rotary and shock action are considered. Designs of systems vibrating isolation and the modernized samples of the manual tool are resulted. Results of their tests under production conditions.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):357-360
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Development strategy of design methods of high-speed bearings of aerospace application
Makarchuk V.V.
Abstract
In report are examined difficulties in calculation and designing, manufacturing and testing of backbone bearings of the aviation gas turbine engines.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):361-365
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Calculation of the double-row spherical roller bearing of the satellite gear wheel of the planetary reducer
Zhilnikov E.P., Murashkin V.V., Shifrin I.M.
Abstract

In the report the technique and results of calculations of durability the spherical roller bearing of a satellite gear wheel of a planetary reducer contain. At calculation efforts in gearing of a gear wheel of planetary transfer, and also centrifugal forces of portable and relative movement, both rollers, and gear wheels are considered. Are considered both deformations in contacts of rollers, and deformations of a deflection of the outer ring combined with a gear wreath. Durability calculations are made on base contact pressure. Recommendations about increase of working capacity of the bearing are resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):366-375
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Laws of life dispersion and statistical estimation of life distribution boundaries as applied to aviation engine LPC disks
Kutyrev V.V., Teplova S.V.
Abstract

The fatigue life variation coefficients versus its base were obtained on the basis of statistic processing of titanium disks test and operation results. The lower boundaries of the D-30 and D-30KU engines’ LPC stage 1 disk life distribution in the area of fillets of dovetailed grooves were determined.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):376-381
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The semiconductor laser feedback effect implementation to constructing of defectoscoping system for large-sized shells
Sazonnikova N.A., Grebnev D.N., Shulepova O.V.
Abstract

For support stable optical axes of diagnostic system and exception of temperature source and receiver dependence is advantageous to both functions coincidence in one elements. This possibility is enable due to semiconductor lasers feedback effect. The semiconductor laser performance with external feedback is described by complex resonator.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):382-388
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Engine vibrations considering for light tugbocharger TKR-8,5C rotor journal bearing diagnostic
Ivanov D.Y., Filimonov M.K.
Abstract

Influence of dynamic loading of an internal combustion engine on turbocharger ТКR8.5С is considered at diagnosing by a method of the analysis of vibration of its case. At dynamics calculation bearing parts with the floating rotating barrel taking into account ruggedness of the case for turbocharger and power influence from a bent shaft and engine buckets are defined frequency ranges of display of defects of a bearing mount assembly in theoretical signals vibroacceleration; the theoretical frequency analysis is carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):389-395
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Methods of calculating the load characteristics of ring dampers of the MR material with partial coverage of a bearing with precessional loading
Parovay F.V., Ponomaryov Y.K., Kotov A.S., Spivak S.E., Vasyukov E.S.
Abstract

The paper shows the method of calculating elastic and damping characteristics of ring damper made of the MR material with partial coverage of the coaxial space between a support and a cylindrical vibrating bearing. Shown that a precessional loading results in elliptical hysteresis loops at projections on coordinate axes of damper. The magnitude of reactions depends on the geometrical parameters of support, the density of the wired material MR, prior tightness of damper. Found that the volume of a gap in the ring damper deforms the elliptical shape of hysteresis loops and their orientation in the coordinate system of load characteristics.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-1):396-401
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