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

Cover Page

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
pages 11-28 views

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
pages 29-33 views

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
pages 34-39 views

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
pages 40-45 views

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
pages 46-56 views

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
pages 57-64 views

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
pages 65-73 views

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
pages 74-81 views

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
pages 82-88 views

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
pages 89-96 views

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
pages 97-105 views

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
pages 106-114 views

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
pages 115-122 views

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
pages 123-127 views

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
pages 128-136 views

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
pages 137-142 views

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
pages 143-146 views

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
pages 147-151 views

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
pages 152-156 views

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
pages 157-161 views

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
pages 162-166 views

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
pages 167-171 views

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
pages 172-177 views

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
pages 178-187 views

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
pages 188-199 views

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
pages 200-206 views

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
pages 207-211 views

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
pages 212-216 views

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
pages 217-221 views

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
pages 222-226 views

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
pages 227-230 views

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
pages 231-234 views

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
pages 235-243 views

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
pages 244-252 views

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
pages 253-259 views

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
pages 260-264 views

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
pages 265-269 views

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
pages 270-276 views

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
pages 277-283 views

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
pages 284-290 views

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
pages 291-297 views

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
pages 298-304 views

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
pages 305-312 views

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
pages 313-317 views

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
pages 318-328 views

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
pages 329-337 views

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
pages 338-341 views

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
pages 342-345 views

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
pages 346-349 views

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
pages 350-356 views

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
pages 357-360 views

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
pages 361-365 views

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
pages 366-375 views

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
pages 376-381 views

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
pages 382-388 views

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
pages 389-395 views

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
pages 396-401 views

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