Vol 11, No 3-3 (2012): Special Issue

Full Issue

Building a diagnosis face gas dynamic seals
Falaleev S.V., Vinogradov I.S., Midyukin V.V.
Abstract

The article describes the experience of service systems socket gas dynamic seals are described designed experimental equipment and method of equivalent tests, as well as the main approaches to the creation of their diagnosis.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):11-15
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Causes of failures of rolling bearings
Zvonarev S.L., Zubko A.I.
Abstract

Causes of failures of rolling bearings and their diagnosis with the use of "separator" of the frequency spectrum of vibrations.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):16-22
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Computation of tip clearance effect on characteristic of low pressure compressor of engine RD-33
Abdelwahid M.B., Fedorov R.M., Fedechkin K.S.
Abstract

The work devoted to numerical investigation of characteristics variation of the compressor, changes of its stability margin and air flow when working in the engine system by increasing the radial (tip) clearance. The study was con-ducted using the method of calculating the three-dimensional flow of air in the compressor, which is implemented in a software product NUMECA Fine / Turbo.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):23-27
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Of non-linear spectral transforms to evaluate the quality of the metal surface
Bekasov L.S., Salimov S.R., Salimova N.R.
Abstract

The following is a method of formal submission of metal surfaces, based on the application of the theoretical foundations of nonlinear spectral analysis. For specific conditions of use environment "Mathcad", which allows for data compression.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):28-32
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The formation of the contoured surface roughness level of optical purity by using a CNC machine
Abulkhanov S.R., Sazonov M.B.
Abstract

The possibilities of optimizing the level of roug Samara State Aerospace Universityhness profile surfaces means CNC lathe. Using a diamond cutter, especially machine design and software provided by the CNC system, the technological process, which is close to the technical nature of nursing, which can significantly reduce the level of roughness of the curved surface. The reduced level of roughness occurs at any fragment contoured surface. Software, the influence of transverse and longitudinal play ball - screw propellers, and get micro rough surface with a flat top, which favorably affect the performance properties, such as diffractive optical elements.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):33-38
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Dimensions of controlled on CMM flat surfaces as an influencing factor of their coordinate-positional parameters measurement errors
Cheveleva A.O., Bolotov M.A.
Abstract

In this paper the influence of dimensional characteristics of flat surfaces on the coordinate measuring accuracy of their geometric parameters, such as central point coordinates and angular coordinates of the normal vector, is researched in case of dimensional measurement on bridge-type CMM DEA GLOBAL PERFORMANCE 07.10.07. Dependences of considered geometric parameters on control point number and pattern diagonal are obtained.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):39-44
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Ultrasonic hardening of specimens made of ЭИ698 alloy optimal regimes choice using average integral residual stresses criterion
Pavlov V.F., Filatov A.P., Shadrin V.K., Chirkov A.V.
Abstract

Residual stresses in flat specimens made of ЭИ698 alloy after ultrasonic hardening under different regimes have been studied. Optimal regimes of ultrasonic hardening have been determined on ground of average integral residual stresses criterion.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):45-49
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Reduction of variable resonance stresses in the last stage of medium pressure compressor
Shklovets A.O., Sen'chev M.N., Dzhibilov P.T.
Abstract

This paper deals with methods for calculating the resonant stresses in compressor blades caused by flow circumferential nonuniformity with modern programs of numerical simulation. Also shown are the approaches to reducing these stresses through the installation guide blades at different angles and profile of Shvarov application.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):50-56
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Improving the efficiency of gas turbines by regenerating heat
Kulagin V.V., Sokolov M.A.
Abstract

Preliminary study of heat recovery and intermediate cooling of working medium effect over the turboshaft engine effective efficiency is carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):57-66
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Application of the artifical neyral networks theory methods for generalization and representation charachteristics of aviation gas turbine engines axial compressors
Grigoriev V.A., Kalabukhov D.S., Rad'ko V.M.
Abstract

The methods of generalization and representation characteristics of gas turbine axial compressor using the methods of neural network approximation.An algorithm for experimental performance generalization in mathematical packages on methods of artificial neural networks are submitted. We compare the results of approximation and interpolation characteristics by neural networks based on multi-layer perceptron and based on radial basis functions for different values of the design compressor pressure ratio. The expediency of applying the methods of generalization and representation compressor characteristics using a two-layer perceptron are shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):67-74
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Fulfilment of initial design level of gas turbine engine using the methods of «ASTRA» CAE system
Kuzmichev V.S., Krupenich I.N., Tkachenko A.Y.
Abstract

Computer-aided system of gas turbine engine calculation and analysis (ASTRA) developed at the Aircraft Engine Theory department of Samara State Aerospace University is described. Its functional capabilities and development of gas turbine engine simulators for various initial-stage design tasks are described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):75-82
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Optimization features of the working process parameters of bypass engine on the basis of given gas generator
Rybakov V.N.
Abstract

Formulation of problem bypass engine parameters optimization using the aircraft efficiency criteria in a case of gas-generator being preselected is described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):83-87
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Gas turbine engine designing on the basis of a unified gas generator
Rybakov V.N.
Abstract

The article describes the choice of working process parameters of three-shaft bypass engine. Possibility of creating a set of engines varying in the thrust level on the basis of the selected gas generator is studied. Efficiency of the unified gas generator as a subsystem of ground-based powerplant is examined.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):88-92
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Experimental research of shaft sealing with elastic element made of MR material
Zhizhkin A.M., Zrelov V.A., Zrelov V.V.
Abstract

Results of experimental researches of elastic and sealing elements made of MR material for shaft sealing are given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):93-97
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Double-electrode electrochemical cell volumetric and flat simulation using ANSYS program
Nekhoroshev M.V., Pronichev N.D., Smirnov G.V.
Abstract

In this work compared the accuracy of three-dimensional and two-dimensional modeling of the echo in the ANSYS program for the example of rounding edges of the union.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):98-102
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Ways to improve the workflow of liquid rocket thrusters on hypergolic propellants
Nigodjuk V.E., Sulinov A.V.
Abstract

The ways to improve workflow liquid rocket thrusters on hypergolic propellants through the intensification of interaction of components in the liquid phase of Indirect devices and coping with the working process of liquid rocket engine thrust of 1.0 N. The results obtained are given advice on the organization of working process of new generation engines, developed experimental models of liquid-propellant thrusters and held their approbation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):103-108
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Parametric modeling cog wheels in Siemens NX
Ramzaeva E.A.
Abstract

There are different approaches of parametric 3D modeling gears with internal and external relief in the article, and also algorithm successive construction of bodies of revolution, formation of the ring gear with involute tooth profile and involute splines among Siemens NX with using MS Excel and VBA macros.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):109-114
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3d virtual simulation and casting process optimization of part GTE "Swirler of II duct" with using computer technologies
Vdovin R.A.
Abstract
Results of 3d virtual simulation and casting process optimization of part GTE
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):115-120
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Formation in the channels of the block catalyst the micro vortex gas flows with intense twist
Knysh Y.A., Zibizov Y.I., Dmitriev D.N., Gorshkalev A.A.
Abstract

In this paper considers issues of improving the efficiency of the catalytic converter. Designed a new design of the catalytic unit. Completed the full range of hydrodynamic calculations of micro eddy currents in the channels of the catalyst.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):121-125
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Main results of use CAE/CAD-systems in the process of design and calculation of the working processes in internal combustion engine
Biryuk V.V., Uglanov D.A., Kayukov S.S., Gorshkalev A.A., Vakarchuk A.A., Burdanov A.M.
Abstract

In given work ICE on the basis of the engine of Mitsubishi 4G63. Thermal calculation of the processes proceeding in given power installation is carried out. On real details it was created 3D prototype model in program complexes SolidWorks. The given technique allows to execute designing of pressurization and system of cooling of the engine. On each of points the technique of performance of calculations that allows to project any ICE has been made.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):126-130
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Simulation of manufacturing processes within the concept of «lean production»
Smelov V.G., Kokareva V.V., Shitarev I.L.
Abstract

In this article we propose to use virtual model of manufacturing to reduce all production expenses by using the digital models both the products and all means of production, manufacturing and logistics processes. It allows the production manager to access information about the product and planning production with optimization of all the resources and the processes, integrating data with suppliers at the earliest stage of design.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):131-136
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On the structural and object approaches to modern training for the aerospace industry
Bezmenova N.V., Prodanov M.Y.
Abstract

Requirements for modern training for the aerospace industry are set out. Тhe experience of the training at the Faculty of aircraft engines SSAU are described. The role and nature of the system methodology is demonstrated. The advantages and disadvantages of structural and object approaches to the implementation of this methodology in the learning process are compared. It is concluded that the using of object - oriented approach is promoting.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):137-142
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On a method of practical training fulfillment for course of studies “Design of Main Units and Systems of Engine”
Borisov V.A., Zhizhkin A.M.
Abstract

Problems of practical training fulfillment for course of studies “Design of Main Unit and Systems of Rocket Engines” by students are discussed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):143-146
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Dispersion of magnetoacoustic waves in media of heat instability
Zavershinskii D.I., Molevich N.E., Galimov R.N., Makaryan V.G.
Abstract

Problem of the plane nonlinear acoustic waves spreaded on arbitrary angle to wave vector in themagnetoactive media was considered.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):147-153
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Coefficient of residual stresses influence on cylindrical parts endurance limit under bending estimation
Semyonova O.Y., Kirpichev V.A., Deniskina E.A.
Abstract

The issues compiling hardened part endurance limit increment prediction after making a semicircular profile cut are discussed in this paper. Estimation of coefficient of residual stresses influence on solid and hollow cylindrical parts endurance limit is given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):154-157
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Study of residual strained state components distribution in the smallest section of superficial hardened part with a circular cut by finite-elements modeling method
Sazanov V.P.
Abstract

Residual strained state components distribution along the smallest section of surface hardened cylindrical part diameter D = 10 mm with a circular cut and the dependence of axial residual stresses in the smallest section on the depth and radius of the cut have been examined using finite-element modeling.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):158-161
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Residual stresses distribution regularities in the smallest section of hardened hollow cylindrical detail with circular cut
Sazanov V.P., Larionova Y.S., Kolychev S.A.
Abstract

The results of the residual strained state components distribution along the smallest section of superficial hardened hollow cylindrical part are given. The dependence of axial residual stresses in the smallest section on concentrator geometric parameters have been examined.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):162-165
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Superficial hardened part critical depth of non-propagating fatigue crack evaluation
Kirpichev V.A., Semyonova O.Y.
Abstract

The issue compiling non- propagating fatigue crack critical depth dependence on cylindrical parts transverse sizes is discussed. Evaluation of crack depth calculation formulas is given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):166-171
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The dependence of detail fatigue resistance on the thickness of hardening layer under outstripping superficial plastic deforming
Vakuljuk V.S.
Abstract

The fact, that the part with a concentrator endurance limit under outstripping superficial plastic deforming depends on the hardened surface layer with compressive residual stresses thickness has been established.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):172-176
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Simulating of Roots compressor
Belov G.O., Ermilov M.A., Kryuchkov A.N.
Abstract

The dynamic model of a Roots compressor is given in article. Also indirect confirmations of adequacy of the developed model are given in article and the chamber of muffling of an exhaust of a compressor.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):177-182
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The calculation of optimum worker frequencies of the thermoacoustic electric generator with including ready electrodynamic unit and given load
Vorotnikov G.V., Kryuchkov A.N.
Abstract

Thermoacoustic generator, consisting of a thermoacoustic travelling-wave engine and linear alternator 1S102MA with electrical load of 80 Om, is being considered. Under considerations of maximum electric power and different pressure amplitudes the frequency of operating point was determined by electroacoustic analogy approach. The calculation results were compared with the results of calculation in program code DeltaE.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):183-190
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The modeling of the thermoacoustic electric generator by quadrupole approximation approach
Vorotnikov G.V.
Abstract

Thermoacoustic generator, consisting of a thermoacoustic travelling-wave engine and linear alternator 1S102MA with electrical load of 80Ω, is being considered. Elements of device are prototyped linear quadrupole. The accounting features of main parameter are brought. The calculation results were compared with the results of calculation in program code DeltaE.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):191-199
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Increase in thermal efficiency of the conditioned clothing
Savchenko N.V.
Abstract

In the paper, based on the example of development and improvement of the conditioned clothing, is examined the possibility of designing of this local zone in the productions, with the high temperature.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):200-205
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A simplified method of thermoacoustic engine analysis
Zynovyev E.A., Dovgyallo A.I.
Abstract

A simplified method of thermoacoustic engine analysis is proposed. The main idea is that the thermoacoustic engine assumed as the acoustical circuit which consists of different components. Acoustic pressures, volume velocities at the two ends of any component and other engine parameters are computed by the transfer equations. Comparison results obtained by this method and by program code DeltaE are given.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):206-212
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Volume and mass mathematical models of single-stage centripetal ultralow power turbines
Grigoriev V.A., Kalabukhov D.S., Rad'ko V.M.
Abstract

Method of numerical-analytical determination of centripetal ultralow power (CULPT) turbines volume and mass at the initial stage of the design are shown. The developed mathematical model of mass can be used to solve the problem of multicriteria optimization of CULPT parameters, which includes optimization of ultralow power turbodrives mass characteristics.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):213-220
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The study of the laws of distribution of the angular errors in production
Ismaylova E.Y.
Abstract

The influence of the ratio of systematic and random errors on the nature of the probability distribution of the angular error in production.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):221-224
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The application of technology microarc oxidation to repair and restore characteristics of products from aluminum alloy AK9
Krishtal M.M., Yasnikov I.S., Ivashin P.V., Polunin A.V.
Abstract

The results on studies of the possibility of applying the technology of micro-arc oxidation as the repair and replacement technology for aluminum alloys are presented. The possibility of using technology MAO to repair and restore the geometry of the working surfaces of parts made of aluminum-silicon alloys operating at high temperatures and significant thermal deformations was displayed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):225-228
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Shock wave profiles in relaxing gas with external energy source
Anchikov D.A., Galimov R.N., Zavershinskii D.I., Makaryan V.G., Molevich N.E.
Abstract

In this paper the shock wave profiles in nonequilibrium relaxing gas with the external energy source are investigated theoretically.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):229-233
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State of the art analysis in the automotive hybrid drives
Sinyiakov A.F., Gimadiev A.G., Ilukhin V.N., Sverbilov V.Y.
Abstract
The paper presents an analytical review of hybrid drives of vehicles.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):234-239
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The analysis tochnostnykh of parameters of the turning and milling equipment changing in the operation procession when manufacturing high-precision GTE
Kondratyev A.I., Kuznetsov A.V., Pronichev N.D.
Abstract

In the conditions of modernization of the enterprises of space branch the turning and milling equipment widely takes root. Its productive use when manufacturing high-precision low-rigid details from materials demands the deep analysis of features of behavior of difficult technological system taking into account operational factors.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):240-244
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Experimental research of vibrations of pipeline of GTD with support from MR for working off method of calculation in environment of ANSYS
Shvetsov A.V., Lezhin D.P., Ulanov A.M.
Abstract

In the article calculation researches of vibrations of pipelines of aviation engine are resulted in the environment of ANSYS and experimental researches by the noncontact system of ARAMIS.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):245-250
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Research of influence of the thermal stream from the mid-flight liquid rocket engine on parameters of operating liquid rocket engines of small draught in the conditions of perspective razgonnogo's propulsion system of the block
Ageenko Y.I., Galperin R.N., Ivashin Y.S., Nigodjuk V.E., Ryzhkov V.V., Sulinov A.V.
Abstract

The pilot study of influence of the thermal stream simulating influence of the working mid-flight engine on parameters of liquid rocket engines of small draft is carried out. Operability of engines in the conditions of the propulsion system is confirmed, parameters of liquid rocket engines of small draft are defined and reserved before achievement of their limiting values on time and on temperature.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):251-259
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Research of radial face contact seal tightness in the support of the aircraft engine compressor at various operational modes
Vinogradov A.S., Badykov R.R., Shpakov I.D.
Abstract

In the article the sequence of leakage definition through radial face seal in a support of the compressor for takeoff and cruiser modes is resulted. Certain computational values of leakage (2,4 g/s on a take-off mode and 0,75 g/s on cruiser mode) coincide with available experience of seal designing.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):260-264
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Seal designing as element of aircraft engine systems and engine units
Vinogradov A.S.
Abstract

In article the new method for designing of aircraft engine and power plant seal is offered. This method consists of seal research as element of the force system, oil and internal air systems, and also in view of engine work on transient modes.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):265-271
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Development of a calculation method for control system of radial clearance in the turbine of gas turbine engine
Bondarchuk P.V., Tisarev A.Y., Lavrushin M.V.
Abstract

This paper presents an algorithm for forming model technology processes in the control system of radial clearance in the turbine of gas turbine engine with non-stationary work conditions. Based on the model of NK-361, radial clearances were calculated in the low pressure turbine throughout the work cycle of the engine, the geometric parameters of the thermal control system of radial clearance were investigated and the gaps by air cooling of stator were calculated.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):272-278
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Investigation of the influence of non-axisymmetric elements in secondary air system on gas turbine engine flow parameters, the temperature field and deformation of components
Tisarev A.Y., Vasilevich N.M.
Abstract

This article deals with the definition of the parameters of air flow in the pre-oil cavity in the compressor support. The two types of interfaces were compared in CFD analysis. Thermal fields of parts were obtained and strength analysis of support parts were calculated. During the work, the heat transfer coefficients obtained by CFD analysis and calculations using semi-empirical expressions were compared. The effect of the presence of holes in the pipe system to the circumferential displacement of rear radial-face contact seal stator were analyzed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):279-284
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Approaches to parametric models of blade machines formation
Shabliy L.S., Popov G.M., Kolmakova D.A.
Abstract

Three main approaches to parametric models of blade machines formation are described. In fractional outlines the advantages and disadvantages of each approach. Particular attention is given to the importance of parametric models creating when turbomachines are being designed and refined.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):285-292
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Combined calculation of gas generators of small GTE in package ANSYS CFX
Matveev S.G., Orlov M.Y., Matveev S.S., Zinkovskii V.S., Krivtsov A.V.
Abstract

This paper describes the main approaches to the implementation of the joint calculation of the gas generator in the package Ansys CFX, created on the basis of their technology and its validation by the example of small-size gas turbine engine.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):293-298
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Research of features of technological processes of formation of properties of assembly units of aircraft
Grechnikov F.V., Tlustenko S.F.
Abstract

The results of formation of structure assortment of commercially pure titanium as a function of the coarsegrained or nanostructured status for providing the mechanical properties obtained a variety of ways details of assemblies are presented. The structure of titanium, depending on the circumstances and the nature of hydrogen absorption during machining is investigated. The impact of particular modes of heating and deformation processing workpieces on texture formation and the fluctuations of the mechanical properties of metal on its area and thickness are established.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2012;11(3-3):299-304
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