Vol 10, No 3-3 (2011): Special Issue

Full Issue

AIRCRAFT AND SPACE ROCKET ENGINEERING
Unification of the design of gasdynamic seal
Falaleev S.V., Sedov V.V., Midyukin V.V.
Abstract

In the report scientifically well-founded offers for choice the geometrical sizes of rings of seal are formulated. The unified number of pairs a friction is chosen. It is applicable to all superchargers of natural gas.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):11-14
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Method of design calculation gas-liquid jet duplex fuel nozzle with internal mixing
Egorychev V.S.
Abstract

Developed a method calculation of gas-liquid jet duplex fuel nozzle with internal mixing them any design concept. Expressions are obtained for determining the coefficient of discharge jet fuel nozzles on all possible modes of operation to the actual flow of the fuel components. This allows the required accuracy for practical purposes to calculate all required parameters of the projected duplex fuel nozzle.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):15-19
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Diagnostics of state gas-fluid of flows in the field of cross vibration
Limanova N.I., Levkin U.S.
Abstract

In the present experimental operation the pith mode with the small gas factor of a two-phase flow is considered. The operation purpose was obtaining of structural models of analogs of initiating structure from influence of cross vibration and presence of possibilities of their usage in the industry schedules Are constructed, results are approximated and empirical formulas are deduced. Four structural models on which the initiating pith structure from influence on it of cross vibration shares are received.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):20-28
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Numerical study of possibility of reliable diagnostics of gas turbine engine by gasdynamic parameters using a linear mathematical model
Gerasimov A.B., Sundukov M.Y.
Abstract

Article offers a method for evaluating possible quantity of cases the identification of gas turbine engine to adequately describe test data with limited number of measured parameters. The dependence of the possible quantity of identifications on the number of identifiable and measured parameters is researched

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):29-36
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Analysis of radial gaps changing dynamics of the pump and turbine rocket engine turbopumps
Ivanov A.V.
Abstract

The paper considers the factors influencing the change in the clearance of high-speed turbomachinery seals have been proposed for approximating the dependence of the gap analysis of changes in the operation of the unit. It is shown that for high-speed machines is undesirable during the design and analysis of turbomachinery using the assumption of constancy of the gap in all operating modes.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):37-42
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The Laue back-reflection method for determination orientation and subgrains disorientation of blade manufacture single-crystal pieces
Tikhomirova E.A., Sidokhin E.F.
Abstract

The technological production process for single-crystal turbine blades requires control of the crystallographic orientation in both manufactured blades, as well as in many auxiliary pieces. The Laue back-reflection method is the simplest and quickest method for these tasks. It is also the quickest and simplest method in terms of technical equipment requirements. The paper presents an original computerised method for processing back-reflection Laue images (epigrams) and a specialised, small table-top unit to determine the orientation of single-crystal objects, as well as disorientation between grains in the object. Comparative results using the Laue method and diffractometry method for testing single-crystal items made from heat-resistant metal alloys from four engine plants are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):43-49
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About investigations the orientation dependence of single-crystal turbine blade exploitation properties
Tikhomirova E.A., Givushkin A.A., Sidokhin E.F.
Abstract

In published investigations the orientation dependence of single-crystal turbine blade exploitation properties was considered for three load directions: <001>, <011> and <111>. A maximum load axis deviation of 10° was allowed. The deviation influence below this allowed limit is considered negligible. Plastic deformation is caused by slip and is contingent on shear stress in the slip plane. Crystal orientation parameters were calculated for the load axes deviation from the <001> direction, as is used in industrial blade testing. It was established that orientation axis deviation within the accepted 10 degree range may substantially alter plastic deformation development. Therefore, it is expedient to take into account the actual sample orientation and the slip plane tension and not only the applied tension during technological testing and when studying the impact of various influences on alloy properties.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):50-54
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Research and optimization of the choice sound-absorbing structures
Postnov V.I., Vyakin V.N., Veshkin E.A.
Abstract

This paper presents the results of a study influence the structure of sound-absorbing panels structures (CLP) for sound absorption, measured using an acoustic interferometer. The estimation of influence on the sound absorption coefficient of ZPK honeycomb type, degree of perforation of casing, type of material and hundreds of skins.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):55-64
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Investigation of the influence of technological factors on the level of residual stresses in MPKM covering reverse D18T
Arlashkina O.J., Postnov V.I., Postnova M.V.
Abstract

The article presents the results of researches influence technological factors on the level of residual stresses in the skins MPKM reverse D18T. Established that the forming sheets Алор Д16/41 with different tension force organoplastic layers leads to a change in the level of residual stresses in aluminum and composite layers.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):65-73
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Using of resonance oscillations in intake system for a car noise tuning
Starobinski R.N., Mescheriakova M.A., Nazarov A.G., Sokolov A.V.
Abstract

The acoustical-mechanical system for creating of informative sound in passenger compartment based on resonance excitation in car intake system is considered. It is shown that acoustical connection of aircleaner cavity with engine compartment by membranes and an involving in oscillations of air masses and volumes inside an intake system allows effective increasing of informative sound of the first harmonics radiating into engine and passenger compartments.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):74-79
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Elastic-damping properties metal composites at high loading
Postnov A.V., Postnov V.I., Vyakin V.N.
Abstract

The article presents the results of studies elastic-fluid properties of metal-composite materials such as ALOR and SIAL. Modulus of elasticity in the range 55,5 1010 - 7,2 1010 Pa, Poisson's ratio of 0.24 - 0.35, the logarithmic decrement of oscillations does not exceed 5%, and studies have shown that practically do not depend on the level of loading in the investigated range of relative strain (ε = 50 10-5 – 200 10-5), while for alloy D16 decrement does not exceed 0.6%.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):80-87
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Application of flame electro conductivity for combustion analysis in spark ignition ICE
Ivashin P.V.
Abstract

The additional possibility of ICE combustion data accessing was experimental investigated. Correlation between ion current and flame propagation speed in spark ignition engine for some different engine condition displayed. Calculated laminar flame propagation speed dependence on ion current was received

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):88-93
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Mechanical characteristics of pipeline support dampers made of MR material
Ulanov A.M., Shvetsov A.V.
Abstract

Thin plates made of wire damping material MR are used widely for pipeline vibration protection. Dependencies of stiffness and damping coefficient of these plates on deformation amplitude, preliminary static deformation, density, wire diameter, plate thickness are obtained

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):94-99
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Measurment procedure optimizing geometrical parameters of measure GTE feature on coordinate measuring machine
Bolotov M.A., Cheveleva A.O., Zhidyaev A.N.
Abstract

Measurement techniques optimization of geometrical parameters of parts "small rigidity ring" and "dove tail" of GTE blade is performing in the article. The goal is achieving using the provisions of a theory of probabilities and mathematical statistics.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):100-105
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Automatization of creation vane 3D-model in Ansys TurboGrid with geometry data in traditional view
Dmitrieva I.B., Shabliy L.S.
Abstract

Is seeing methodology of automotive creation of vane 3D-model in TurboGrid for gas-dynamic analysis. Is suggested ways of solving problems which occupies during converting different formats of data.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):106-111
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Working out of the design of the chamber of combustion of engine NK-14ST-10 with modular torches
Kocherov E.P., Rosljakov A.D., Tsibizov J.I.
Abstract

Working out of a design of the ring chamber of combustion with the modular torches, providing the small maintenance of harmful impurity in exhaust gases is executed. By means of a package for imitation gasdynamic processes with use of program FLUENT are simulated gasdynamic processes in several variants of models of torches and their optimum geometrical parameters are revealed. The quantitative estimation of quality of mixture of methane with air in the second contour of a torch is executed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):112-116
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Dynamik experimental researches of the face gas dynamic seal
Novikov D.K., Balyakin V.B., Sedov V.V.
Abstract

In this article we described mathematic model of the face gas dynamic seal and made experimentally an analysis of its dynamic.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):117-120
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Determination of a rational combination of the radial turbine basic parameters with an allowance for strength, technological and other constraints
Baturin O.V., Shabliy L.S.
Abstract

The paper describes an algorithm allowing to find quickly and intuitively the combination of the main variables that determine the turbine workflows, allowing to achieve high efficiency values with an allowance for the structural, strength and other restrictions.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):121-124
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Blading of radial-axial turbine wheel using Bezier curve
Baturin O.V.
Abstract

The paper describes the constructing algorithm for radial-axial turbine rotor blades using Bezier curves. The surface of the blade obtained by this algorithm is monotonically changing curvature and it impact positively on efficiency. In addition, blades are radial in all section perpendicular to the axis of rotation; it can significantly reduce the bending stresses in the blade body.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):125-130
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Aircraft engine design based on unified gas generator
Vinogradov A.S., Parovay Y.F., Mordvinov A.G., Popov D.V., Shirokov M.A.
Abstract

In article the algorithm of aircraft engine designing based on unified gas generator is considered. Also here the main stages of such model creating are described. This stages include thermogas dynamic account, blade profiling, The algorithm combines accounts of hydraulic resistance, thermal condition, unite assembling and detail data base creating, strength accounts and assemble scheme.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):131-139
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Modeling of heat conduction process in porous MR material
Zhizhkin A.M.
Abstract

Principles of modeling of structure of MR material and heat conduction process for absence of convection of media in holes are presented in this article.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):140-144
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Size distribution of holes in elements made of MR material
Zhizhkin A.M.
Abstract

Results of research of size distribution for size of holes in plane and cylindrical elements made of MR material are presented in this article.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):145-149
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The phenomenological models of the dynamic recrystallization of alloys for aviation
Khaimovich A.I., Surkov O.S.
Abstract

On the basis of representation of a plastic flow in the polycrystalline media in which grains and their borders interact with themselves as two diverse, but the interconnected structures, the mathematical model containing the equations of movement of continuum taking into account thermomechanical interaction of specified structures has been developed. The thermal and is intense-stress and strain condition according to model are calculated from the field equations and experimental diagrams dynamic recrystallization. The presented numeric models of the dynamic recrystalli-zation for alloy ЭИ437 and titanic alloy ВТ9, confirm the proposed setting.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):150-153
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Heat engine cycle limitations imposed by fuel properties
Mikheyenkov E.L.
Abstract

The heat energy of fuels used in a heat engine cycle is the source of the cycle's useful effect. The maximum fuel efficiency is particularly desirable in rocket and aircraft engines due their carrying the fuel (and the oxidant, in rocket engines) during the entire mission. In vehicle engines and power plants fuels are selected based on their cost and availability. Using the most prevalent Brayton cycle as an example, the article considers parameters that determine the maximum available heat factor introduced by a fuel into the cycle. Two parameters limiting the Brayton cycle's efficiency are considered, the maximum efficiency imposed by strength properties of materials and the maximum level of combustion products. The values of excess air factors for fuel combustion processes and limiting characteristics of heat engine cycles are determined for the case of Brayton cycles.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):154-159
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Energy sources in heat engine cycles
Mikheyenkov E.L.
Abstract

Thermal energy is, by definition, the source of useful energy (work) in a heat engine. The source of thermal energy is a heat-producing chemical reaction between the substances comprising the working mass of a heat engine, or between additional substances introduced. Heat-producing chemical reaction is called combustion reaction. A combustion reaction involves two types of substances: fuels and oxidants. The products of combustion reaction comprise the working mass of the thermodynamic cycle on its expansion stage, yielding useful energy (work). Energetic characteristics of combustion product generation processes are available for engineering and scientific purposes. There is a system of equations developed in chemical thermodynamics that determine the resulting products and energetic parameters of a reaction. To calculate heat engine cycles, it is necessary to obtain the characteristics of combustion products (thermodynamic properties - heat capacity, specific gas constant) and the maximum temperature levels of reaction products. The article provides an overview of approaches to determine the thermodynamic properties of combustion products and lists the values of these parameters for the most widespread fuels when combusted in air.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):160-166
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Internal combustion engine some cooling system components detailed calculation
Kolomin I.V., Ajukov A.A., Birjuk V.V.
Abstract

The main arguments in favor of creating a program for calculating the elements of the internal combustion engine cooling system for use in the learning process during the lab exercises.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):167-170
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Modeling of redistribution of residual stresses in the cylindrical specimens after advancing surface plastic forming
Chirkov A.V., Sazanov V.P., Samoylov V.A., Larionova Y.S.
Abstract

It is shown that for modeling of residual stresses redistribution in the strengthened cylindrical specimens after advancing surface plastic forming initial deformation method can be used.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):171-174
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Heat meter for AKSUE, integrated into management information system TP of the industrial enterprise
Biryuk V.V., Leonovich G.I., Livochkina N.A.
Abstract

Modern counters can store the data during time about one year and or transfer on communication channels in the automated monitoring systems and the account of power consumption which on modern promysh-lennyh the enterprises are integrated into the general automated system by technological processes of manufacture. Besides maintenance of an uninterrupted cycle of works of MANAGEMENT information system ТP should possess high degree of information security.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):175-181
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3D-model of compressor rotor blade development
Boyarov K.V., Ryazanov A.I., Chempinsky L.A.
Abstract

3D-model of compressor rotor blade is developed. Structural elements of the model: comprehensive representative of dovetail shank type and blade airfoil are parametrized.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):182-190
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Analisys of experimental combustion chambers fire tests for LRE with cooling by liquid oxigen for "DM" type booster
Smolentsev A.A., Strizhenko P.P.
Abstract

The paper discusses results of fire tests of the experimental combustion chamber for perspective liquid rocket engine with cooling by liquid oxygen without inner cooling. The correspondence between obtained experimental data and design parameters have shown. It is concluded that the cooling of cryogenic oxygen is reliable. Even with a leakage path of cooling the combustion chamber of serious damage or structural failure does not occur. During the fire tests the presence of leaks in the fire wall of the combustion chamber does not lead to the destruction of structure.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):191-198
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Method of design calculation jet-centrifugal gas-liquid duplex fuel nozzle with internal mixing
Egorychev V.S.
Abstract

Developed a method of design calculation jet-centrifugal gas-liquid duplex fuel nozzle with internal mixing of the generalized structural scheme. Expressions are obtained for determining the coefficient of discharge of the centrifugal fuel nozzle, taking into account the real flow of the fuel components. To a minimum diameter nozzle at the outlet duplex fuel nozzle, which provides independent from each other work and the calculation of internal and external contours. This allows the required accuracy for practical purposes to calculate all required parameters of the projected duplex fuel nozzle.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):199-204
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Physical workflow model in the combustion chamber LREST with a jet-centrifugal jets on hypergolic propellants
Silyutin M.V., Shustov S.A.
Abstract

Based on the experimental study a suggested physical model working processes in the combustion chamber LREST with jet-centrifugal jets on the hypergolic propellants into six interrelated areas.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):205-212
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Highly reliable pipes with a layered cover
Akhmedyanov D.T.
Abstract

The design of a pipe preventing destroying influence of hydraulic blow in pressure head pipelines, used in all industries and municipal services is developed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):213-216
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Problems of heat and mass transfer on phase transformations or hemical reaction
Churkina N.V.
Abstract

This article review problems of kinetics of processes in a spherical particle under heat and mass transfer in conditions of chemical reaction or structural phase transformations. We use the approach of quasi-equilibrium to resolve kinetic equations. It is shown, that the suggested method simplifies the decision of this problem. For heat exchange and mass transfer processes with heat absorption, we received the closed system of the kinetic equations which can be investigated by numerical methods. Numerical calculations for a case of roasting of limestone particles are obtained.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):217-221
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Research of changes in shape and location ring details with small rigidity
Galuzina T.V., Polyakov A.V.
Abstract

In the program of Ansys V12 was calculated the model fixing thin-walled rings in three-jaw chuck. Is investigated effect of the shape of vice grip on the deformation of the workpiece.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):222-226
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Use of the methods of the structural programming to form the «reliability» diagrams of the fuel supply system of the gas turbine engines with the control elements failure order of no less than four
Smurova N.A.
Abstract

The article studies possible options of development of the «reliability» diagrams which take into account the consecutive mode selection of the fuel flow automatic control system which is considered as a system with elements with three conditions. The article contains main concepts of development of an algorithm used to form a column of the high-order matrix of the incompatible conditions defined by the priority of the failure mode vector component of the control system which characterizes position of the fuelling switch at the failure mode condition as «failure». The article considers a possibility to form components of the «reliability» diagrams using the network structure database. A possibility to state a problem and develop the «reliability» diagrams using calculation equipment is studied

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):227-236
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Quality criteria hardened surface layer, the effective parameter management process technology of surface plastic deformation
Khibnidc T.A., Koltsoun Y.I.
Abstract

In the paper we examined the mechanisms of emergence and development of fatigue cracks in the case is not optimal modes of surface plastic deformation. We proposed the effective quality factor of technological surface layer hardening.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):237-241
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Damping devices in the construction of compressor vanes of engines of the "NK" family
Frolov V.A., Belousov A.I.
Abstract

Here, I present the designs of compressor vanes with a damping device, developed in a research laboratory at the Department of "Construction and design of aircraft engines". The results of the use of dampers in GTD NK-12, NK-14 and NK-8, "E" and "P" products, are shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):242-250
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Investigation of the kinetic properties of gas products of liquid-phase interaction hypergolic liquid rocket fuel
Nigodjuk V.E., Sulinov A.V.
Abstract

The paper presents an experimental study of the kinetic properties of liquid-phase interaction products gasified two-hypergolic liquid propellants. The parameters of the gasified products and obtained a relation for the definitions of the induction period processes in the gas phase at a stage prior to ignition of gasified products.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):251-256
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Surging and auto-off the helicopter engine at start-up unguided missile from launchers
Prokopiev A.L., Povetkin O.V.
Abstract

The description of the solutions to minimize the negative impact of surging on the stable operation of the engine helicopter, appearing at the entrance to the air intake of the helicopter at the time of launch unguided aircraft rockets (rockets), and is the application in the construction of the visor and perforated stilling.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):257-264
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Increasing the energy efficiency of liquid rocket engine of small thrust (0,1-1,0) N with jet scheme of mixing
Nigodjuk V.E., Sulinov A.V.
Abstract

As a result of theoretical and experimental studies have shown that the main reason for the low efficiency of two-component liquid-propellant thrusters (0.1 ... 1) N on hypergolic propellants with jet mixing scheme is the low efficiency of liquid-phase mixing of the components. Proposed and experimentally investigated a method for increasing the energy efficiency of two-component liquid-propellant thrusters (0,1 ... 1) N on hypergolic propellants with jet mixing scheme due to the intensification of liquid-phase mixing of the components with predkamernogo device.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):265-268
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Influence in a constructive and regime parameters antechamber by operation-in the combustion chamber liquid-propellant rocket engine thrusters on hypergolic liquid propellants
Nigodjuk V.E., Sulinov A.V.
Abstract

The article presents the results of theoretical and experimental studies on intensification through antechamber major limiting stages of the flow of the working process in the combustion chamber: the gasification of liquid phase intermediates and evaporation of unreacted fuel components Comrade through the organization of effective secondary crushing and mixing of gas-phase and mouth-injuries of large-scale non-uniformity of the ratio of the fuel components in the cross section through heavy turbulence in gas-phase intermediates

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):269-276
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The concept of generalized method of calculation and design of wet cleaning duct GTD
Silaev B.M., Malcev E.N.
Abstract

Calculated dependences allowing to determine the optimal features and parameters of wet cleaning duct of gas turbine engine (GTE). The possibilities of algorithmic analysis and design of the system.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):277-281
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Development of the method of calculation and design stand installation for testingmodes wet cleaning duct GTE
Silaev B.M., Malcev E.N.
Abstract

Developed by the authors presented a constructive and small-sized circuit pneumohydraulic bench setup to enable a refinement of modes wet cleaning duct GTE factory terms instead of pilot tests of real engines. Relations are obtained that allow reasonably calculated to determine the necessary structural, geometric and kinematic parameters of the installation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):282-285
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Laser-vibrating method for testing of gluing designs from polymeric composite materials
Mordasov V.I., Storozh A.D., Grebnev N.E., Grebnev D.N., Shulepova O.V.
Abstract

The laser-vibrating method of defects detecting in large sized shells from composite materials is considered. The ultimate sensitivity of a method was limited by base of the laser transducer. Recognition of monolithic details stratification, non-gluing in layered cellular and other designs, and cellular filler crushing was carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):286-292
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Investigatiom of interrelation of gluing designs defects from polymeric composite materials
Mordasov V.I., Storozh A.D., Grebnev N.E., Grebnev D.N., Shulepova O.V.
Abstract

Defect is considered as set of dependences on other defects. On degradation processes accumulate the subjective reasons (infringements of service conditions, inadmissible loadings, use of inadmissible operational materials, etc.). A difficult component is the complex reason in the form of operational defect: the constructive, technological and operational factor.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):293-299
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To a question of forcing up of thermal stirlings macine
Belozertcev V.N.
Abstract

The question of forcing up of Stirlings thermal machine. working on a cycle is considered. As key parameters of speeding up of power characteristics of thermal cars pressure of refueling of a working body and frequency of rotation of a drive are chosen. For work on modes with the minimum losses of capacity in engines and the valid thermal capacity in refrigerating to the car pressure of refueling and frequency of rotation of a drive should change not any way. The parity between them is established through calculation of losses in a regenerator. Their values are accepted to operating conditions on speeding up parameters corresponding to identical minimum total losses in a regenerator.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):300-303
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Residual stresses in the specimens with opennings imitating openings for coupling bolt into the turbine of jet engines
Vakuljuk V.S., Kirpichyev V.A., Pavlov V.F., Sazanov V.P.
Abstract

The residual stresses in the flat specimens with openings made of ЭИ698ВД and ЭП742 alloys after ultrasonic treatment is studied. It is established that ultrasonic treatment creates great values of compressing residual stresses in the surface layer of openings

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):304-308
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Control metods of hardening process in the time of SPD
Volkov A.N., Sazonov M.B., Mashinnov K.Y.
Abstract

Control process of shotimpact methods SPD is considered. Control of hardening process of pieces from titanic alloys is possible by strain deflection of plates from carbon steels is indicated. The intensity of exoelectronic emission of the surface of finished part can be utilized in the capacity of assessment criterion of stressed - distorted state of superficial layer.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):309-314
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Investigation of laser beam influence on aircrafts surface condition estimation efficiency
Sazonnikova N.A.
Abstract

For the purpose of detection and recognition probabilities estimation of objects depending on parameters of measurement system statistical modeling of the given process was spend. The functions of probability depend on relation of spot diameter to the characteristic size of an element of investigated surface, level of noise, number of rereflec-tions in surface elements were defined. Possibilities of noise level decrease in measuring systems was shown at laser power stabilization.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):315-319
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Dataware of virtual lab for gas turbine engine testing
Rybakov V.N., Kuzmichev V.S., Kulagin V.V., Krupenich I.N., Fedorov D.V.
Abstract

Concept of dataware of virtual lab for gas turbine engine testing and its cooperation with other subsystems are described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):320-325
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Concept of construction of virtual lab for gas turbine engine testing
Rybakov V.N., Kuzmichev V.S., Tkachenko A.Y.
Abstract

Concept of construction of virtual lab for gas turbine engine testing is described. Virtual lab for gas turbine engine testing is one of components of gas turbine engine mathematical model and provides possibility for engine testing and determination of its performance parameters.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):326-331
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Definition of the apparent elastic limit's change in metal materials at nanoporous structures formation
Murzin S.P., Tregub V.I., Osetrov E.L.
Abstract

In the propulsion engineering application of metal materials with nanoporous surface is perspective for rising antifrictional properties of tribological units and interacting surfaces conformability. The method of formation nanoporous structures in metal materials by laser influence is developed. Similar structures could also be received by vacuum isothermal soaking of binary alloys, in this case accumulation of separate and tunnel pores occurs with smaller speed. Dependence of material apparent elastic limit's change on duration of high-temperature influence in vacuum is defined.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):332-337
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Increase of welded joints strength at welding nickel-based alloys by pulse laser influence
Murzin S.P., Tregub V.I., Nikiforov A.M.
Abstract

In the propulsion engineering it's expedient to spend welding of small thickness metal alloys by pulse laser radiation. It's established that formation of welded joint with strip power source gives possibility to increase the weld cross-section area and, as consequence, joint strength. At welding of high-temperature and heat-resistant nickel-based alloys {superalloys} strength of welded joint raises on 10...20 %. Carbides were dissolved, the cast zone has homogeneous structure without emptiness and blisters that specifies in high workability of welded joint.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):338-342
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The intensification of selective laser sublimation processes for nanoporous metal materials formation
Murzin S.P., Osetrov E.L., Tregub V.I.
Abstract

It's expedient to carry out formation of nanoporous metal materials, which have prospects of application in the propulsion engineering for creation of interfaced details blankets in tribological units with raised antifrictional properties, by the selective laser sublimation method. The intensification of laser sublimation processes is possible at increase of thermal-activated diffusion. At the lowered surrounding atmosphere gas pressure heated material's sublimation occurs more intensively, since smaller temperatures.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):343-348
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Research of the possibility of thermal conditions LREST using an infrared thermal imaging system
Ryzhkov V.V., Silyutin M.V.
Abstract

Currently, the increasing use of infrared thermal imaging systems are in science, engineering and technology, which allows to visualize, process and display measurement information characterizing the processes taking place with heat. The results of the use of such systems for research and testing of the thermal state LREST.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):349-356
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Thermostation aerospace engeniiring energy division of the state board of equipment
Alekseenko V.P., Biryuk V.V.
Abstract

In this paper it is shown analysis and results of theoretical research of energy division of thermostation aerospace engineering.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):357-362
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Investigation of resonant oscillations working plates in experimental models of pneumatic valve
Zhuravliov О.A., Komarov S.Y., Makaryants G.M., Sergeev R.N., Harchikova J.V.
Abstract

The article presents the results of the application developed by the authors of digital speckle interferometer with a continuous laser to study the resonance characteristics of the working plate (rolling shutter) pneumatic valve with acoustic stimulation and interaction with the body and the flowing gas stream.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):363-369
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Calculation of aircraft high-speed rolling-element bearing rings fit
Makarchuk V.V., Zhilnikov E.P.
Abstract

Hereunder are recommendations for calculation of aircraft rolling bearing rings fitting pull and screw nut tightening efforts considering thermal expansion and deformation due to high-speed centrifugal force.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):370-376
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Joint work of units and characteristics of elements gas the equipment for the engine of internal combustion with spark ignition
Shishkov V.A., Lesnih U.I.
Abstract

The mutual influence of the characteristics of the engine and fuel elements gas of the equipment on algorithm of management the engine of internal combustion with spark ignition working on gas fuel is shown. On the basis of researches carried out the author, develops algorithm of management gas the engine of internal combustion on various modes of his work in view of joint work of all elements gas of the equipment and engine.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):377-386
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Features of start-up the engine of internal combustion with spark ignition on gas fuel
Shishkov V.A.
Abstract

The start-up the engine of internal combustion with spark ignition with an electronic control system on gas fuel is considered. The influence of temperature the engine of internal combustion on the characteristic of gas submission is shown during start-up and warming up. The bases and features of algorithm of start-up the engine of internal combustion with an electronic control system on gas fuel are described depending on a condition of the engine, quality of fuel and external conditions. The ways of perfection of algorithm of management of start-up the engine of internal combustion on gas fuel are offered.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):387-396
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The fiber-optical gauge of pressure for the control system of engine BPLA
Leonovich G.I., Matjunin S.A., Kilejnov Y.U., Livochkina H.A., Solovjov V.I.
Abstract

Difficulties of optimization of a power-plant and complexind onboard equipment are connected with dimensions АМП and functional complexity of accessories. To the greatest degree they are shown at the small sizes. At the same time modern technologies allow to create tiny powerful processors.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2011;10(3-3):397-402
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