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

Full Issue

AIRCRAFT AND SPACE ROCKET ENGINEERING
Cycle air heating system of gas pumping unit NEVA-25NK
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Abstract

An ice protection system for gas pumping unit Neva-25NK with NK-36ST engine is developed. The results of full-scale test are presented providing validation of the required parameters.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):9-12
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The laser priming of high energy materials ignition
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Abstract

By using relatively high laser power densities, it is possible to quickly heat this small portion of the explosive to the critical temperature. The application of lasers to initiate explosives is advantageous because it allows the researcher to closely control and measure how much energy is delivered to the explosive and the rate at which that energy is delivered. The researcher has some degree of control over how much of the explosive material is heated by the laser. This is accomplished primarily by varying the spot size produced by the laser, as control over the penetration depth of the laser light into the explosive is much more limited and difficult to measure.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):13-19
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Manufacture and technology of production of alloyed steel with microcrystal structure
1 1., 1 1., 1 1., 1 1.
Abstract

Production of billets by casting processes allows controlling the composition and the structure of the billets’ material at the expense of the modification of casting processes, temperature regimes, mechanical, magnetic, acoustic impacts on the flux and others. Metal’s characteristics depending on the inner structure and crystallization conditions of the flux have been investigated.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):20-27
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The simplification of heat engines thermodynamics calculation with using of idaeal gas’ model
1 1., 1 1.
Abstract

The analysis of possibility of application of model of ideal gases is executed for the calculations of thermodynamicses of heat-engines.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):28-33
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About the centre of science-educational of laser systems and technologies at faculty DLA SSAU
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Abstract

Within the limits of the National project «Education» and innovative educational program in 2006 at the Samara state space university of a name of academician S.P. Korolev at faculty « Engines of flying devices » under direction of the academician of the Russian Academy of Science professor Shorin Vladimir Pavlovich have been created the Centre of science-educational of laser systems and technologies. The centre of science-educational is created on educational and pedagogical base of a speciality 200202 «Laser systems in rocket technics and astronautics» at faculty of automatic systems of power installations.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):34-38
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Dynamic tests of probes for measurement of pulsations pressure at the raised average pressure
1 1., 1 1., 1 1., 1 1.
Abstract

Dynamic tests of probes for measurement of pulsations of pressure in flowing part GTD with devices of correction of frequency characteristics are spent with a view of check of the developed mathematical models of processes and working off (operational development) of pre-production models of probes before them are direct application at various tests газотурбинных engines. For carrying out of dynamic tests with the purpose of experimental working off of probes for measurement of pulsations for conformity of their frequency characteristics settlement on faculty ASEU SGAU efforts of authors had been created the bench equipment and the измерительно registration complex, allowed to spend frequency tests at the raised{increased} average pressure. The created equipment has allowed to define{determine} experimentally frequency characteristics of probes at average pressure up to 25 kg/sm 2 to frequency of fluctuations of pressure up to 1000 Hz.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):39-42
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Laser vibrating method of gluing shells defects detecting
1 1., 1 1., 1 1., 1 1., 1 1.
Abstract

This paper shows the advantages of Laser vibrating diagnostic method for ungluing joints detecting in sandwich large-sized shells. The defects presents is detected by extended reflected laser spot form. The error of the method is increased significantly with reducing of laser beam distanсe, shall external layer vibrating amplitude and CCD resolution.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):43-48
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Oxyhydrogen propulsion device base on water electrolysis and lrest on component H2 + O2 for control system SS
1 1., 1 1., 1 1., 1 1., 1 1.
Abstract

Object of research is perspective oxygen-hydrogen propulsion device light load spacecraft on base electrolysis waters and LREST on components Н2g + О2g. The basic pneumatichydraulic scheme of propulsion device light load spacecraft is offered and comparison of variants of its execution on mass parametres is spent. The spatial electronic model of propulsion device light load spacecraft is developed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):49-58
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Hydrodynamic rinsing of hydrofuel system’ unflowing units
1 1.
Abstract

Present main result of research methods and techniques intensification rinsing of hydro-fuel units bodies and hydro-cylinders by oscillations’ flow. Rinsing Schematics with single- channel fluid generator and box of boundary conditions. The decreasing of rinsing duration 2-3fold and increasing of removed particles 1.5-2fold as compared with steady-state rinsing.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):59-66
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The determination of various factors influencing on change of the mounting fit and calculation procedure of the load distribution in the cylindrical roller bearings operated in tightness
1 1.
Abstract

In present work the evaluation of various factors influencing on change of the mounting fit in high speed rolling bearing is presented. Prime factors are thermal effect and influence of centrifugal forces on the sizes of bearing races. The relation between volumetric and contact deformations of mating parts and bearing is considered. A calculation procedure of the load distribution in the cylindrical roller bearings of gas-turbine engines operated in tightness conditions.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):67-75
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Theoretical calculation approach of gas turbine engines compressor characteristic line
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Abstract

Today most of gas turbine engines have a guide vane system in the compressor. Developing estimation approaches of its influence on compressor characteristic line is very important because it defines operation stability of compressor and whole gas turbine engine. So theoretical calculation approach of gas turbine engines compressor characteristic line help to save time and efforts performing experiments.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):76-82
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Manipulate pulsed detonation engine
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Abstract

In this paper, executed with participation of doctor of engineerings sciences, professor of Biryuka Vladimir Vasil'evicha, according to application’s trends of pulsed air-breather engine for aircrafts it is shown a design of engine with periodic fuel detonation burning and manipulated valves.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):83-88
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Development of the design procedure of the shaping rigging with the use of the integrated information systems
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Abstract
The paper describes the use of integrated CAD system for creating complex of Technology for snap-through-manufacturing organizations. Analysis of the effectiveness of the procedure developed in the actual production and gives recommendations for more effective application.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):89-94
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The modeling of kinematics of plastic current at bending process of branch pipes distribution
., ., .
Abstract
Results of modeling cinematically the possible field of speeds describing process of plastic deformation of trumpet preparation at bending process of pipers by distribution in stamps are submitted.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):95-100
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Development of advanced low thrust rocket engines with ecologically friendly propellants
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Abstract

The results of development of the low thrust rocket engines with fuel compositions oxygen/kerosene, oxygen/ethanol, oxygen/hydrogen, oxygen/methane are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):101-109
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Structure and mehanpichesky properties of the shovel 1 steps of the rotor of turbine GTE-45-3 after the long operating time and regeneration
1 1., 1 1., 1 1.
Abstract

Microstructure research, nano - a substructure and physicomechanical properties of the fragments which have been selected from a shovel of 1 step from alloy ЭП800-ВД of a rotor of the turbine of unit GTE-45-3 in a postoperational condition, and also after their regenerative heat treatment on various modes for the purpose of definition of a technical condition and maintainability of its material is conducted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):110-117
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Designing and experimental research of hybrid gas bearings for heavy multibasic rotor of gas turbine
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Abstract

There is an area of applications of turbomachines where use of gas-lubricated bearings is economically expedient at rather heavy rotors. It is a question of turbogenerators capacity of 500 - 2000 kw with high-frequency electrogenerators. In article results of designing and experimental researches of gas bearings of a turbogenerator by capacity of 1000 kw are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):118-126
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Increase of efficiency of technological preparation of manufacture on the basis of through use of the information technology
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Abstract
In work the technique of increase of productivity and quality of works on preparation of steering programs for machine tools with NC, working off of these programs, a choice of the tool and modes of processing which allow to raise competitiveness of a small enterprise is considered.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):127-131
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Experimental development of the LRE with CCCM nozzle’s extension
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Abstract
The peculiarities of experimental stand development of LRE with a nozzle extension from CCCM are presented, in which the zone of the cooling part mating with nozzle extension is combined with a section of symmetrical injection of the waste generator gas: application of small-size vacuum cell embracing only the CCCM nozzle extension; temperature measurement in the nozzle extension and application of the nondestructive methods of control at different phases of manufacture and exploitation of the CCCM nozzle extension.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):132-138
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Experimental determination of the side forces acting on the combustion chamber in the altitude chamber at startup
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Abstract
Results of experimental development are presented on determination of lateral loads, acting onto a highaltitude chamber during startup in the vacuum cell. The lateral loads were determined by sensors installed in CC fastenings; the obtained results were re-accounted into physical values on the basis of static and dynamic calibration of sensors.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):139-147
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Influence of earthquake parameters on tribological properties of friction pendulum bearings (seismo insulators)
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Abstract

Frictional pendulum bearings (FPB) have the universal properties satisfying various requirements at operation of buildings, bridges and industrial constructions. The dynamic periods of oscillations from 1 up to 5 s, displacement up to 1,5 m, high bearing capacity and damping can be provided. Bearings can maintain vertical loading up to 13,5 thousand tons and have the minimal cost of a structure. In the paper the information on influence of earthquakes and other forces influenced on FPB characteristics, used as seysmo-insulators in oil platforms of the project "Sakhalin - 2" are represented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):148-165
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Special methodic of economics indexes determination of turbocompressor stations for central air supply of industrial factories
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Abstract

In this paper it is presented recommendations of using of compressor stations working parameters and their external output characteristics to evaluate of energy saving reserves during work on non standard regime.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):166-170
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A separator skidding in the cylindrical roller bearing between shafts of the gas turbine engine
1 1., 1 1., 1 1.
Abstract

In article results of experimental researches and theoretical calculations of slippage of a separator in the cylindrical roller bearing between shafts of the gas turbine engine are presented.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):171-177
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Noise reduction of snow-plough
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Abstract

The report deal with possibility of installation of the aviation engine on the snow-plough. Acoustic characteristics of a cabin of the operator are investigated. Developed constructions to noise reduction of snow-plough.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):178-184
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Experimental acknowledgement of adequacy of the developed mathematical model of instant giving of the liquid by the gear pump
1 1., 1 1., 1 1., 1 1., 1 1.
Abstract

In work is described experimental acknowledgement of adequacy of the developed mathematical model of instant giving of the liquid.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):185-188
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The development of mathematical model of hydrodynamics of "tpapped" volume in the gear pump
1 1., 1 1., 1 1., 1 1., 1 1.
Abstract

In work is described created mathematical model of hydrodynamics of tpapped volume in the gear pump. Developed model allowed to choose a configuration of the discharge plates which provide decrease of pressure in trapped volume. The efficiency of this action was approved experimentally.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):189-193
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Calculation of durability of working section of progressive divider valve by a method of final elements
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Abstract

The description of calculation of durability of working section of progressive divider valve is resulted at various speeds of moving of the dosing out piston. Calculation includes: preparation of solid-state 3D-models of details; creation of settlement model; formation of is final-element model; the analysis of results of modelling. Work is executed with use of program complex ADAMS of firm Mechanical Dynamics, Inc.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):194-202
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Improving the operating characteristics of engines by the imposition of manufacturing operation of hermeticity inspection of vacuum-tight radio electronic device cases
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Abstract
The mathematical model of the shielding gas injection from the vacuum-tight Radio electronic device (RED) case through the soldered joint of the closure head has been developed. It allows to establish binding between the operating time and pressure of the shielding gas iside the vacuum-tight RED case. The inspection method of vacuum-tight RED case hermeticity by means of determination closure head of the RED case deformation has been developed. This allows to reveal depressurized RED cases and to forecast further changing of the shielding gas pressure.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):203-207
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Development and investigation of electropump of increased service life with ball bearings
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Abstract

The results of laboratory investigation and real operation are presented on a high-speed two-stage electropump (EP) of increased service life. In the EP developed design the bearing’s balls are pressed against the cage surface of the thrust bearing, the radial movement of the rotor is decreased by use of slot seals with anti-friction rings, the length of electric motor’s shaft overhang is reduced, the shaft rigidity is increased owing to position of the second stage’s impeller on a hub of the first stage’s impeller. The EP service life in real operational conditions exceeds 22900 hours.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):208-214
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Force interaction between cage and elements of high speed ball bearing and bearing assembly
1 1., 1 1., 1 1., 1 1.
Abstract

The analysis of cage force interaction with high-speed ball bearing units and bearing assembly was made. The working cage force system and initiation sources of the forces involved were presented, preselected ratios for determination of chosen forces required for stressed-deformed state and cage sizes evaluation were shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):215-220
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Research and rationing admissible nick on working blades of the compressor for engine NK-12 example
1 1., 1 1., 1 1., 1 1.
Abstract

Results of this work are the analysis of geometry, experimental and design data for working blades of the compressor of engine NK-12, comparative fatigue tests. The methodology of design-experimental works on forecasting and check of reliability of blades with damages is offered specified concerning requirements of OST.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):221-229
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Investigation of processing performance on finish turning of high strength steel 30HGSN2A
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Abstract

Investigation Results of finish turning of High Strength Steel 30HGSN2A by cutter with hard alloy plate Т30К4 are considered. It includes working accuracy, surface roughness and circular residual stresses. Ability of changing grinding to cutting for this material is observed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):230-234
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Features of application of “aluminum- boron nitride” composite material in aviation engines
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Abstract

Features of application of aluminum casting composite on the basis of “Al-BN” system have been considered in this work. As a result of the studies practical recommendations on its application in aviation engine designs of Klimov JSC have been provided.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):235-240
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Designing GTE on the basis of versatile gas generator small dimension
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Abstract

The report is devoted to development of scientific and technical bases of small-sized gas turbine engines of various schemes and any application in short terms and at minimum expenses. For these purposes a concept for designing of new engines has been developed and substantiated using the versatile gas generator.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):241-248
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Selection of new heat-resistant nickel alloys for advanced aviation engines
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Abstract

New nickel and blade materials for parts of advanced gas turbine engines have been considered in this work. It has been shown that disc materials with increased strength properties and blade sparingly doped alloys with small specific weight meet requirements regarding the service life and reliability of advanced aviation engines.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):249-255
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Conception of the student work place arrengement for the computer aided design base teaching
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Abstract

Conceptual questions, connected with automated student work place arrangement, for the engineer drawing subfaculty tasks are considered. It’s shown that graphic and geometry training efficiency may be raised by means of technological providing with automated modeling and manufacturing by CNC desk tool. The investigation results are intended for using at «Aircraft engines» faculty of Samara state aerospace university (SSAU).

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):256-263
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Methodology of the adaptive graphic and geometric training for the computer aided design teaching
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Abstract

The methodological problems of the study environment design for the many-level graphic and geometric training system are considered. Presented that work with electronic model is an effective means for forming of the design-technological thinking of the CAD/CAM programs users. The necessary conditions for adaptive function ensuring of the study environment are explored. The proposed approaches are used at «Aircraft engines» faculty of Samara state aerospace university (SSAU).

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):264-272
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Motion trajectories of the vehicle with mass injection pre-compressor cooling turbojet engines as the first stage of aircraft-space systems
1 1., 1 1.
Abstract

The motion of the vehicle with Mass Injection Pre-Compressor Cooling turbojet engines as the first stage of an aircraft-space system during the “steep – climb” maneuver is discussed. The aim of the maneuver is to climb at the preset inclination angle of the trajectory in order to launch a rocket with small payload into the low-earth orbit.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):273-278
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Features of adaptation of first-year students of SSAU in the application of computer technologies of training
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Abstract

The main problems of adaptation of the first-year students, concerning its definition and versions, problems, factors and estimation of level of adaptability under conditions of innovative high school by the example of geometric graph-training using computer technology are analyzed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):279-291
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1
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Abstract

Рассмотрены направления, методы и средства реконструкции компрессорных станций за счет внедрения конвертированных авиационных ГТД в качестве приводов ГПА и различных узлов и технологий из аэрокосмической отрасли.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2009;8(3-3):292-298
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