Vol 1, No 2 (2007)


Selection of the Criterion for the Automatic Clutch Control Development

Karunin A.L., Kretov A.V., Esakov A.E.


The article examines the statement of the problem of optimal design algorithm, which should be used in the system of the vehicle automatic clutch control. Durability of the friction linings of the slave drive is used as the optimality criterion.
Izvestiya MGTU MAMI. 2007;1(2):7-11
pages 7-11 views

Study of Optimization of the Hydrostatic Transmission by Indicators of the Acceleration Dynamics and Fuel Efficiency

Bakhmutov S.V., Gusakov D.N.


The article lists the features of the hydrostatic drive as a transmission of multi-axis all-wheel drive vehicle. The method of calculation of static modes of motion. A comparative analysis of control laws with serial and parallel regulation of hydraulic machines in terms of traction load and fuel economy.
Izvestiya MGTU MAMI. 2007;1(2):11-14
pages 11-14 views

Experimental Evaluation of the Influence of the Power Distribution along the Axes of the Multiaxial Wheel Drive on Vehicle Handling and Stability

Bakhmutov S.V., Gusakov D.N.


The article is devoted to the review and comparative analysis of the results of the experimental study of the 3-axis all-wheel drive vehicle, equipped with hydrostatic transmission. The authors proposed the technique of experimental evaluation of controllability and stability of multi-axis vehicle. The conclusions about the need for an automated control system.
Izvestiya MGTU MAMI. 2007;1(2):14-19
pages 14-19 views

Multicriteria Parameter Optimization in the Tasks of Improving Handling Characteristics and Stability of Vehicles

Bakhmutov S.V., Akhmedov A.A.


The authors present a mathematical model for the implementation of multiobjective parameter optimization of a car on the criteria of controllability and stability; the method of formulating and solving the problem of multicriteria parameter optimization. The authors conducted experimental verification of the mathematical description and presented the results of optimization tasks and gave practical advice.
Izvestiya MGTU MAMI. 2007;1(2):19-30
pages 19-30 views

Hybrid Vehicles are the Solution of Environmental Problems of Road Transport

Selifonov V.V., Karpukhin K.E., Filonov A.I., Baulina E.E., Avrutsky E.V.


The authors describe the benefits of vehicles with hybrid power unit (GSU), consider the schemes of hybrid propulsion vehicles. The article presents a design developed by the experimental all-wheel drive vehicle with hybrid power plant, made by a parallel circuit; description of the experimental vehicle test bench for fuel economy and emissions, held at the Federal State Unitary Enterprise NITSIAMT; the results of tests confirming the reduction of fuel consumption and emissions of cars with hybrid powerplant.
Izvestiya MGTU MAMI. 2007;1(2):30-44
pages 30-44 views

Theoretical Study of Vibration Characteristics of a Powertrain of an All-wheel Drive Vehicle Driving on a Rough Road

Dementyev Y.V., Le Trong Cuong L.C.


The article presents a kinematic model of the transmission and vibrating dynamic model of an all-wheel drive vehicle, which permit investigating the vibration load of the power unit and the body taking into account the nonlinearity of the characteristics of elastic elements in the transmission and the influence of roughness, choosing rational parameters of suspension assemblies at the design stage and finishing. The proposed model takes into account the vertical and torsional oscillations of the transmission.
Izvestiya MGTU MAMI. 2007;1(2):44-54
pages 44-54 views

Current Trends in the Vehicle Mechanical Transmissions Control

Kretov A.V., Esakov A.E., Minaev V.V.


The article presents a brief overview of modern electromechanical actuating devices that automate the management of mechanical clutch and a mechanical transmission; automation of mechanical transmission is highly actual.
Izvestiya MGTU MAMI. 2007;1(2):55-57
pages 55-57 views

Hybrid Propulsion System with Regenerative Turbine Engine and High-temperature Fuel Cell

Kustarev Y.S., Merkulov V.I., Kostyukov A.V., Dikov A.V.


The authors examine the task of scheme and regulation of gas turbine engine, operating in the hybrid power plant with high-temperature fuel cell.
Izvestiya MGTU MAMI. 2007;1(2):57-61
pages 57-61 views

Investigation of the Cooling System of the Rotary Heat Exchanger Frame

Kustarev Y.S., Kostyukov A.V., Dementyev A.A.


The authors study the cooling system of the frame of a weakly-clogged rotary heat exchanger of small-size gas turbine engine which ensures lower temperature non-uniformity and thus leak through the seals of the heat exchanger.
Izvestiya MGTU MAMI. 2007;1(2):61-65
pages 61-65 views

Ways of Increasing the Life of Bearing Assemblies of High-speed Turbomachinery with Wick Lubrication

Kustarev Y.S., Kostyukov A.V., Valeev A.R., Plykin M.E.


The article considers the effectiveness of wick lubrication and thermal state of the high-speed rolling bearings of the turbo-refrigerator rotor. Shown that the inside track bearing turbo-refrigerator overheats because of areas of dry friction. The authors found that zone of dry friction disappears after installing a conical insert in front of bearing ensuring the flow of oil-air mixture in the direction inside track bearing.
Izvestiya MGTU MAMI. 2007;1(2):65-68
pages 65-68 views

Identification of a Vehicle Engine Operation for Use in a Mathematical Model of its Motion (by an example of DT466 engine)

Lepeshkin A.V., Kurmaev R.K., Katanaev N.K.


This publication proposes a method of obtaining mathematical identification of the engine characteristics on the basis of existing characteristics obtained experimentally. The feature of the proposed method is in the fact that the result is the dependence of the moment created by the engine on two variables: the engine speed and the control parameters of the operation mode. The proposed method is disclosed by example of receipt of the specifications for DT466 diesel.
Izvestiya MGTU MAMI. 2007;1(2):68-73
pages 68-73 views

Extension of the Temperature Range of Automotive Electric Motors by Using the Permanent Magnet Excitation Component

Boriskin P.I.


The article presents a technique that extends the temperature range of automotive DC motors through the use of magnets in a composite system excitation by an equivalent circuit made up for the application package IRIS-PC.
Izvestiya MGTU MAMI. 2007;1(2):73-76
pages 73-76 views

Ways of Improving the Mechanical Drive of the Carriage Power Generator

Balovnev N.P., Vavilov P.G.


The article proposes to use V-belt transmission with a spring loaded idler pulley in the carriage power generator drive. This will increase the belt life with some increase of traction transfer power
Izvestiya MGTU MAMI. 2007;1(2):76-78
pages 76-78 views

Problems on Creating of a Multimass Mathematical Model of Vehicle Motion and Methods of their Solution

Bakhmutov S.V., Gusakov D.N.


The paper analyzes features of vehicle multimass model acquisition, regardless of its design and building complexities. The authors propose the technique of writing the equations of motion of sprung mass in the general moving coordinate system and describe the role of kinematic characteristics of the suspension.
Izvestiya MGTU MAMI. 2007;1(2):78-84
pages 78-84 views

Mathematical Model of Rolling Elastic Wheel over Deformable Ground

Chistov M.P., Naumov A.N.


The article describes the interaction of elastic wheel with deformable ground. In The mathematical model makes a number of assumptions which drastically simplify the engineering calculations.
Izvestiya MGTU MAMI. 2007;1(2):84-90
pages 84-90 views

Technological Solutions for Operational Imbalance of Turbines Flexible Rotors

Korneev N.V.


The article considers the basic principles and a new technology of vibro-stabilization of turbine flexible rotors. The authors designed and developed a unique test-bench for vibro-stabilization.
Izvestiya MGTU MAMI. 2007;1(2):90-94
pages 90-94 views

The Role of Certification Test Grounds to Ensure the Quality of Created and Upgraded Road and Track Vehicles

Gribanov D.D., Fedulov A.I.


The article gives a description of information-measuring system (IMS) MIG, intended both to measure the dynamic characteristics of high-speed tracked vehicle and its suspension characteristics, and to identify characteristics of the test track used for testing such machines. The authors used the algorithm of determination of the instantaneous radius of rotation, measured using the IMS MIG on the basis of the Doppler effect.
Izvestiya MGTU MAMI. 2007;1(2):94-99
pages 94-99 views

Relation Between Features of Harmonic Statistical Linearization

Savochkin V.A., Shishanov S.M.


The paper presents the basic computations of method of combined linearization of elastic and damping performance of transport machine cushioning system. This method may be realized if the harmonic linearization coefficient of cushioning system are preliminary determined. This method is based on the possibility to present the differentiable random stationary process as a harmonic signal randomly modulated by phase and amplitude; if relational motion of track roller is a differentiable stationary process, it may be presented as a centered harmonic oscillation. The paper argues that the method of combined linearization is effective if analytical (and graphical) expressions for equivalent coefficients of harmonic linearization are already known.
Izvestiya MGTU MAMI. 2007;1(2):99-105
pages 99-105 views

The Influence of Interaxial Deviation in the Control System of Continuously Variable Transmission of AWD Six-Wheeler on the Operating Efficiency

Lepeshkin A.V., Kurmaev R.K.


The paper presents the results of mathematical modeling to study the research of motion of AWD six-wheeler "Gidrohod-49061" with continuously variable transmission, operating in a locked mode of inter-axle connection. The paper analyzes the influence of interaxial deviation in the transmission control on the parameters characterizing its work, as well as on the efficiency of the vehicle in general.
Izvestiya MGTU MAMI. 2007;1(2):105-114
pages 105-114 views

Methodology for Assessing the Safety of Vehicles on the Technical Level and Term of Operation

Komarov V.V.


The paper presents the results of research in the field of safety evaluation and safety control of vehicles. Different approaches to determining the safety of vehicles are analyzed. Safety is considered as a complex property of vehicle's quality. The concept of stability of properties is introduced. The concept of technical level of vehicle and its impact on safety is clarified. The paper presents the methodology of safety evaluation of vehicle according to its technical level and operation life.
Izvestiya MGTU MAMI. 2007;1(2):114-122
pages 114-122 views

Problem of Hazard Identifying in the Vehicles Design

Komarov V.V.


The paper presents results of the analysis of the problem of hazards identifying in the vehicles design. The paper analyzes various approaches to the identification of hazards arising during vehicle operation. The problems functional failures list generation and it's its completeness is considered. The author formulates hypothesis that allows to develop a new method for determining the list of functional failures, and to improve the validity of vehicle safety system.
Izvestiya MGTU MAMI. 2007;1(2):122-127
pages 122-127 views

Prospective Economically Feasible Direction to Improve the Integrated Engines in Today's Technological Advances and Fuel and Energy Crisis

Kutenev V.F., Kamenev V.F., Makarov A.R., Fomin V.M., Khripach N.A.


The paper summarizes the prospective areas of improving of internal combustion engine and the main ways to increase their fuel efficiency and environmental performance in the future.
Izvestiya MGTU MAMI. 2007;1(2):127-132
pages 127-132 views

Inventory Management of Spare Parts and Accessories Using Information Technologies

Antipenko V.S., Galkin K.V., Sharipova E.V., Bezrukov A.V.


The authors propose to optimize inventory levels in stock companies without using the hypothesis of functional forms of probability density functions and time in explicit form.
Izvestiya MGTU MAMI. 2007;1(2):133-136
pages 133-136 views

Influence of Alloying and Structural Condition of Thermionic Emission and Heat Resistance of Niobium

Arzamasov V.B., Smirnova E.E., Stroyev A.A., Polunov I.L.


The paper shows the influence of alloying and heat treatment on the structural condition, durability, and thermionic emission of niobium-based alloys. It is shown that the maximum heat resistance of multicomponent niobium is achieved after quenching from 1750 º C and ageing at 1100 ÷ 1200 º C, while the electron output work function remains stable.
Izvestiya MGTU MAMI. 2007;1(2):136-140
pages 136-140 views

New Tools for Advanced Technological Processes of Materials Used in Engineering

Borovsky G.V., Balkov V.P.


The paper presents the latest developments of VNIIINSTRUMENT. These include a range of cutting tools with high-micron carbide and high-quality composite coatings based on (TiAlNb) N for high-speed machining of light alloys and heat-treated steels; face mill assembly with a lightweight aluminum bodies; range of turning tools, end and face mills, equipped with cutting blades made of superhard materials for the processing of a wide range of metallic and nonmetallic materials; drill for deep drilling, etc. Also, VNIIINSTRUMENT carries out works in the field of standardization of tools, development of technological process for wood- and metalworking, all types of tools and equipment, theirs maintenance.
Izvestiya MGTU MAMI. 2007;1(2):140-143
pages 140-143 views

Vibration Control of Machining Facilities and Metalworking Technological Processes

Brazhkin Y.A.


The paper examines the dependence of vibro-acoustic oscillations spectrum arising in cutting zone (on the example of gear-broaching tool) on the cutting edge wear. On the basis of analysis of the vibrational spectrum the method and control device for machining facilities are developed. The device is processing the frequency and correlation signal from vibration sensor, fixed in the location of the workpiece. Increased wear of cutters leads to increasing in analog output voltage in the control device. The authors have conducted tests and monitoring of tool wear. The readout correlated with the visual identification of the width of the front cutting edge of the tool.
Izvestiya MGTU MAMI. 2007;1(2):143-147
pages 143-147 views

Computer Simulation of Robotic Assembly Method Based on a Passive Adaptation Using Vibration

Vartanov M.V., Bozhkova L.V., Kolchugin E.I.


The paper presents the results of modeling of the assembly process of cylindrical parts on the basis of low-frequency vibrations vibratory bearing with basic part and elastic fixing of the installed components. With the use of developed software the influence of technological regimes and the design parameters of gripper (in particular, the rigidity of fastening parts) was determined.
Izvestiya MGTU MAMI. 2007;1(2):147-152
pages 147-152 views

The Cost of Measurement Assurance of Products on the Sifferent Stages of Life Cycle

Gribanov D.D.


The paper considers the aims and objectives of metrological support of production at all stages of their life cycle. The authors presents formulae for expenditure estimates for implementation of metrological work carried out in the process of metrological assurance in relation to each stage of product's life cycle.
Izvestiya MGTU MAMI. 2007;1(2):152-156
pages 152-156 views

Power Characteristics of the Working Area of the Separator Module with Opposing Magnets

Ershova V.A., Sandulyak A.A., Sandulyak A.V., Krylov V.A., Pugacheva M.N.


The paper presents the method which allows rapid and reliable determination of the magnetic force of attraction (capture) of a particle at any point of the investigated area of magnetic influence. On the basis of measurements it was shown that in the threshold zone (around the edges of magnets) the field is much more heterogeneous than in the "shadow" zone. Besides, the paper estimates a failure zone of the spacing amount 20-30%. As a result of numerous measurements of the attraction forces of ferroparticle balls of various diameters in the threshold area one of the basic expressions for its determination was defined. Also, the basic expression for determining of capture forces od non-spherical shape ferroparticles.
Izvestiya MGTU MAMI. 2007;1(2):156-160
pages 156-160 views

The Nature of the Force Factor between the Opposing Magnets of the Separator with Blade-type Rods

Ershova V.A., Nyunin B.N., Sandulyak A.A., Sandulyak A.V., Pugacheva M.N.


On the basis of measurements of magnetic induction in a modular unit consisting of two opposing magnets it was shown that, firstly, the induction field reaches its minimum value in the middle of the block, and, secondly, with decreasing magnitude of the clearance the overall level of the field increases. On the basis of the variation found by the gradient induction and force factor it was shown that their tail sections (approximately 23-27% of the clearance) is taping off, but the induction of these tailings areas become almost self-similar, which indicates the presence of a failure zone between the opposing magnets module. As a result of ferromixtures analysis as the hazard of power facilities, the dependence for assessing of financial equivalent of risk reduction was found.
Izvestiya MGTU MAMI. 2007;1(2):160-164
pages 160-164 views

Investigation of the Kinematics of the Radial Extrusion Process with the Running Deformation Zone

Kalpin Y.G., Petrov P.A., Petrov M.A.


Products of "bulge rod" type can be obtained by plastic working both in conditions of cold deformation, and in condition of half-hot and hot or hot deformation. Using crosscut extrusion in stamping technology can reduce energy costs and eliminate the possibility of destruction in the zone of transition from thickening (flange) to the core of the product. The effectiveness of the transverse processes and combined extrusion is ensured due to a significant reduction in consumption and increasing of CMM (in 1,5-2,5 times) and reducing the complexity of subsequent mechanical machining. However, in addition to improving of thickening set technology, a real question remains about how to increase the deformable part of the core piece, and, consequently, increase of the final ratio L / D. The article presents the results of experimental studies of the radial extrusion process with the running hotbed of deformation product type rod with a thickening. A principal possibility of obtaining products of type bar with a thickened by combining in a single instrument two technological schemes: the landing and transverse (radial) extrusion. Accomplished studies have quantified estimation of changes in the height of thickening, depending on the ratio of the planted part of the product to its diameter, and, depending on the composition of the technological lubricant. The obtained data can be used in numerical simulation of the radial extrusion of the running hotbed of deformation.
Izvestiya MGTU MAMI. 2007;1(2):164-169
pages 164-169 views

Technological process of race rings manufacturing

Koltounov I.I.


The paper describes the optimization methods for technological process of race rings manufacturing. The mathematical model which enables to reveal the optimal combination of basic parameters of the product on the stage of design is developed.
Izvestiya MGTU MAMI. 2007;1(2):169-174
pages 169-174 views

Effectiveness increase of burnishing and mixed processing by the variation of tool location method

Kouznetsov V.A., Shestavin P.V.


The paper examines the tools with several working surfaces which are used for various types of machining illustrated by cutter for combined machining and plastic deformation, notably the cutter with round plate, cutter with multisurface plate, cutter with raised corner, which may be turned about 3 axis. Besides, the device for combined edge cutting machining and plastic deformation is examined. The paper presents the optimal ways of machining element location when hardened and non-hardened steel machining, and the possibility of phase transformation implementations in the surface layer at high-temperature rapid burnishing. It is found that the research on the tool location influence on the various quality parameters during burnishing makes a great contribution into operation improvement
Izvestiya MGTU MAMI. 2007;1(2):174-177
pages 174-177 views

The research of thermal capacity of submicrocrystalline powder materials on the basis of nickel aluminide

Levin V.P.


The paper examines the influence of compacting pressure on the thermal capacity of macrocrystalline and submicrocrystalline powder composition on the basis of nickel aluminide in the wide range of temperatures. It was found that the compacting pressure in the large-dispersed powder mixtures Ni50 Al50 actuates inttermetallides Ni2Al3, NiAl3 according liquid-phase mechanisms at Т ~ 0,85 Tпл, and in fine-dispersed powder mixtures it intensifies the generation of intermetallides according to the solid-phase reaction mechanisms at Т ~ 0,77 Tпл. The obtained results may be used for the analysis of physical and mechanical features of nano-materials, obtained from by gas condensation in the inert atmosphere.
Izvestiya MGTU MAMI. 2007;1(2):177-182
pages 177-182 views

The dependence of cutting force on the sectional shape vibrations under mixed machining of nonrigid tubes

Maximov Y.V., Ankin A.V., Vetrova E.A.


The paper examines the combined method of cutting-deforming machining of quill cylinder type nonrigid parts, which increases productivity, quality of machining and working accuracy. The basic feature of the method is that the machining process is accompanied with tensional and bending oscillations caused by geometrically induced errors in the workpiece cross-section, setting errors and various static and dynamic tuning errors of cutting and deforming tools (for example, the static tuning error of structural elements location of processing unit). On the basis of analysis of expressions for resultant error and oscillation equation the authors obtained formula which determines actual cutting depth and lateral force on the part when cutting. On analyzing the alternation of cross section of tube on the example of single-pass part cutting (with maximum transverse force) it was found that in the process of cutting the cross-section of the tube is deformed by negligible quantity.
Izvestiya MGTU MAMI. 2007;1(2):182-186
pages 182-186 views

On the issue of optimization of processing environment for high-speed technological systems

Mikhailov V.A., Shershakov N.A.


The research involves the investigation of effective processing environment control systems on the stages of design-to-manufacture setting and in the process of equipment exploitation. The application of the hierarchical parallel-sequential composite design and technological systems control with quality function improves the accuracy of design and technological solutions to deliver precise and reliable long-life technological systems; provides desired accuracy of working procedure control; reduces time for the generation of control programs; reduces cost of solution check.
Izvestiya MGTU MAMI. 2007;1(2):186-192
pages 186-192 views

Dynamic viscoelastic properties of polymeric constructional materials based on polycarbonate

Nizhegorodov V.V.


The paper presents the research of viscoelastic properties of polymeric constructional materials based on polycarbonate using the methods of acoustic spectroscopy. The research was conducted using the method of free torsional vibrations at the low-frequency acoustic spectrometry, performed on the basis of inverse torsion pendulum. In the measurement process the dynamic shear modulus G 'and mechanical loss-angle tangent tgδ have been obtained. Measurements were performed in a wide temperature range from -180 to 200 ° C. It was shown that the reduction of impact strength at low temperature area is connected with the difference in chemical structure and the introduction of impact modifier.
Izvestiya MGTU MAMI. 2007;1(2):192-195
pages 192-195 views

Influence of chromium on the properties of molded steel for hot deformation

Nitkin N.M., Zuev V.M.


The paper examines the influence of heat hardening temperature and drawback on the properties of molded steel for hot deformation of the following mixture: 0,36-0,44% C and 3, 5 and 8% Cr. The optimal hardening temperature and drawback is offered. The effect of chromium on the mechanical properties of forged steel is studied.
Izvestiya MGTU MAMI. 2007;1(2):196-198
pages 196-198 views

Application of luminescent materials for road signs and road markings

Nurmuhametov R.N., Volkova L.V., Kunavin N.I., Klimenko V.G.


The composite materials based on polyepoxy containing various luminophors are obtained. Such compositions exceed in brightness the polymer marking materials with bloomless ingridience at the expense of the energy transformation of ultraviolet and short-wave visible radiation in the long-wavelength (green-yellow or red) glow. The paper shows the prospects of application of composite materials for fluorescent composite materials for highways markings and road signs.
Izvestiya MGTU MAMI. 2007;1(2):199-203
pages 199-203 views

Demagnetizing channel factor and "bundle" of magnetization channels in granular medium

Sandulyak A.V., Sandulyak A.A., Ershov V.A.


The paper examines the chain of balls of densely packed granular medium (with mutually contacting granules) as a specific "elementary" magnet, responsible for the magnetization of the granular medium. Using this example it is shown that traditional "finite" problem of volume averaging of the magnetic properties of two-component ferromagnetic medium can be extended with specific values of magnetic permeability of elementary effective channel of magnetization. These values may be not only average, but also profiled. The authors obtained demagnetizing factor data of the granular samples on the basis of characteristics of average permeability. The relevant processing of demagnetizing factor allowed to find the general expression for its location. It is shown that the relevant data of various magnetization channel cores and samples of polyspherical medium correlates accurately.
Izvestiya MGTU MAMI. 2007;1(2):203-208
pages 203-208 views

Organizational and economic mechanism of production management on the principles of ecological safety

Sdobnyakova E.E.


Strategic changes in the internal environment of an industrial enterprise as a reaction to external influence are based on the prediction of changes in national approaches with regard to Russia's entry into the WTO, where economic processes are increasingly dependent on environmental factors. This paper describes the organizational and economic mechanism of management based on present ecological concepts, with a full range of environmental issues taken into account as a normal stage of planning and development of the manufacturing process and industrial products, which is not regarded as a separate (mostly final) operation. Approbation of the proposed model and estimation of production management efficiency in view of the developed set of quantitative indicators showed not only reducing the negative industrial impacts, but also a significant economic effect.
Izvestiya MGTU MAMI. 2007;1(2):209-214
pages 209-214 views

Templates control by mathematical models on updated microscope

Suslin V.P., Shooter M.G.


Modernization of the microscope includes: installation of optical scale systems on the coordinates X, Y; reequipment with personal computer and modern measuring program GeoARM-2D; replacement of contact lens with Renishaw scanning probe. Application of the microscope in contact measurement mode has significant advantages: reduced load on the operator, increasing productivity; increasing objectivity of test results. These advantages are especially noticeable in the control template by the mathematical model.
Izvestiya MGTU MAMI. 2007;1(2):214-217
pages 214-217 views

The method of experimental study of magnetic separator working area with obtaining of direct capture power data

Sandulyak A.V., Sandulyak A.A., Ershov V.A., Nyunin B.N., Pugacheva M.N.


The paper presents various methods (including non-proven ballistic method) for power characterization of the working zone of cleaning unit. The authors developed and implemented a new method based on forced drift of ferroparticles along the remotely positioned line through this area (with subsequent calculation of the normal component of the capture power).
Izvestiya MGTU MAMI. 2007;1(2):217-221
pages 217-221 views

Phenomenon of channel-by-channel magnetization of granular medium: radial (peak) profile of "elementary" channel permeability

Sandulyak A.V., Sandulyak A.A., Ershov V.A.


The paper presents a study of magnetization regularities of quasisolid cores of "elementary" effective channel of magnetization of balls chains and it's "strata-tubes". The research is based on original ideas about channel-by-channel magnetization of "densely packed" granular medium The paper presents the radial profile mode for magnetic permeability of channel magnetization.
Izvestiya MGTU MAMI. 2007;1(2):221-228
pages 221-228 views

The problem of plastic substance flow in the fixed isosceles trapezium-shaped area. (by means of elastic half-space)

Bodounov M.A., Bodounov D.M., Kovalenko P.V.


The paper examines the problem of ideally plastic material flow in the fixed area through the elastic-deformable surfaces. The flow area appears as the isosceles trapezium; the matrix of tool is modeled as a elastic half-space. The initial integro-differential system comes to single Hammerstein integral equation. The paper proposes the method of successive approximations for solution of this equation. The analysis of this solution is given.
Izvestiya MGTU MAMI. 2007;1(2):229-240
pages 229-240 views

Computational modeling of relaxation self-excited oscillations in the double-mass system with friction under alternating loading

Mikhailova V.L.


The paper examines double-mass system with two Coulomb friction sources under alternating loading. This problem has been solving on the basis of stepwise computational procedure with regularizing and iterations at each step. The paper contains comparative study of modeling results subject to self-excited oscillations for harmonic and linear loading laws.
Izvestiya MGTU MAMI. 2007;1(2):240-247
pages 240-247 views

The application of finite elements method for characterization of process variable in operations of metal sheet tension

Sukhomlinov L.G., Shvaya A.P.


The paper presents modification of rigid-plastic finite element model of sheet metal forming in case of orthotropy of plastic properties of sheet metal. The paper outlines the results of computational and experimental investigation of sheet metal and yellow metal tension under large plastic deformation.
Izvestiya MGTU MAMI. 2007;1(2):247-254
pages 247-254 views

Venetian trace in philosophy of subject

Dmitriev V.E., Dmitrieva I.A.


The paper presents the research on social roots of New European concept of subject. The authors found the basic reason of subject concept change in economical practice of Venetian republic. It was the image of Venetian merchant which not only became the catalyzer of feudal order, but determined the connotations of subsequent New European philosophy of subject.
Izvestiya MGTU MAMI. 2007;1(2):255-260
pages 255-260 views

Development of virtual economy in Russia

Filyakin Y.P., Maslova N.Y.


The paper examines the development of virtual economy (electronic commerce and e-business) in Russia, degree of readiness for this type of economy and commercial availability of networking.
Izvestiya MGTU MAMI. 2007;1(2):260-265
pages 260-265 views

Innovations: the key factor of economic growth

Kravtsova V.I., Evdokimova S.S.


In the era of globalization the development of competitive advantages of national economies appears as one of the most complex and multifaceted problems. In this regard, the paper gives a comparative analysis of innovation development, identifying a list of necessary conditions for rising of Russian economy to the competitive level. Innovations are the most important factor among these conditions. The authors persist in the opinion of strengthening of the state's role in the regulation of innovation development.
Izvestiya MGTU MAMI. 2007;1(2):266-270
pages 266-270 views

The mechanism for competitiveness assessment of the propulsion engineering production

Ionov V.I., Taiwo M.I.


The paper states that the existing methods for assessment of the competitiveness of automotive products show the lack of criteria for their evaluation, fragmentation of approaches to the qualitative assessment of products, lack of principles of integrated assessment of quantitative and qualitative parameters of competitiveness. The proposed mechanism involves the consistent procedure for assessment of competitiveness of products using certain tools.
Izvestiya MGTU MAMI. 2007;1(2):270-276
pages 270-276 views

Economic and mathematic model of foreign trade relations

Katanaev N.T., Zakharova A.V., Simutina M.N.


The paper examines the economic and mathematical model of intermarket relationships. The intermarket relationship model was illustrated by the example of the stage of transition from planned to market economy in Russia. This phase is associated with crises and distinct contradictions in management theory on all the levels of state structure.
Izvestiya MGTU MAMI. 2007;1(2):276-280
pages 276-280 views

Economic vocabulary of contemporary German

Rodyaeva S.N., Kozlovskaya Y.I.


The paper reveals the need for a deeper understanding of contemporary economic German vocabulary. This requirement is caused by the need of Russian specialists in the German language acquisition in a special field of communication in conditions of social market economy of modern Germany.
Izvestiya MGTU MAMI. 2007;1(2):280-289
pages 280-289 views

The study of pun in Russian linguistics of XIX - XX centuries

Mikheykina S.G.


The paper outlines the scientific concepts of the pun phenomenon. The paper identifies the origins of viewpoints diversity and analyzes 2 scientific approaches: unification of "pun" and "play on words" concepts and separating them. Study of pun takes a special importance in the light of contemporary trends in mass media language: slang, language of advertising, destructive language play, the widespread disregard to literary and linguistic norms.
Izvestiya MGTU MAMI. 2007;1(2):289-294
pages 289-294 views

The main conditions to ensure the competitiveness of international automotive alliance Renault-Nissan

Meshcheryakova E.V.


The paper analyzes the conditions that ensure the competitiveness of the international automobile alliance Renault-Nissan.
Izvestiya MGTU MAMI. 2007;1(2):294-298
pages 294-298 views

Training of mechanical engineers to improve the quality of Russian cars

Karunin A.L., Zaitsev S.A., Gribanov D.D.


The paper examines the problems of training of mechanical engineers in the present educational conditions, remaining much traditional character. At the same time one of the major problems today is to cultivate new approach to learning among students and professors. The basis of this approach is the analysis of the causes of the education degradation, elimination of defects at the early stages and taking appropriate corrective measures. Students and professors must understand that elimination of educational defects at the early stages is economically sound, because it requires the lowest costs with significant cost savings to achieve the required level of quality.
Izvestiya MGTU MAMI. 2007;1(2):299-303
pages 299-303 views

Conceptual principles of generating of national system of higher professional education in the field of engineering and innovation technique <file:///C:\Documents%20and%20Settings\timonin\Local%20Settings\Temp\Word_1>s

Zaitsev S.A., Vyacheslavova O.F.


The paper presents a conceptual basis for the generating of national system of higher professional education in the field of engineering and innovation technique s. New forms of organization require new content, including a strategic goals of future professionals training, modern epistemological aspects of learning, new learning methodology.
Izvestiya MGTU MAMI. 2007;1(2):303-305
pages 303-305 views

Generating of quality management systems within the general management control system in the field of higher education

Lartseva T.A.


The paper examines the questions of generating of quality management systems within the general management control system in the field of higher education. Due to its transparency this system will allow university to demonstrate the ability to produce products that satisfy consumer, constantly tracking and analyzing his needs. The basic purpose of the university will be the increasing satisfaction of the individual, society and state in educational services, training and scientific products.
Izvestiya MGTU MAMI. 2007;1(2):305-308
pages 305-308 views

On the issue of improving of teaching of engineering graphics in the XXI century

Martishkin V.V., Fazlulin E.M., Yakovuk O.A.


The paper analyzes the factors affecting the effectiveness of teaching "Engineering Graphics" in technical universities and suggests some ways to improve it. These include the modernization of the "Engineering Graphics" course (projection and technical drawing), i.e. in a form close to human-computer dialogue. For this purpose it is proposed to use special directories outlined in the paper.
Izvestiya MGTU MAMI. 2007;1(2):308-315
pages 308-315 views

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