Vol 5, No 2 (2011)
- Year: 2011
- Articles: 58
- URL: https://journal-vniispk.ru/2074-0530/issue/view/3817
Articles
Optimization of the Laws of Control the Parameters of Two-axle Vehicle Suspension Using STABCON 2.0 System Software
Abstract
The article includes the brief information on the application suites Stabcon 2.0. With Stabcon the authors made the statement and solution of the task of optimization of two-axle vehicle suspension performance in different road conditions. The characteristics of the design parameters of the suspension control two-axle vehicle are described in the article.
Izvestiya MGTU MAMI. 2011;5(2):7-11
7-11
11-15
Functional Requirements for the Automatic System of Vehicle Accident Identification
Abstract
There is a necessity to develop the functional requirements to the automatic system for vehicle accident identification in the automated systems of emergency response to the accident. The list of accident types, which are subject to automatic identification is substantiated. Proposals on the design and use of some sensors, in particular, vehicle element deformation sensors are presented.
Izvestiya MGTU MAMI. 2011;5(2):15-23
15-23
High Temperature Rotary Heat Exchanger for Gas Turbine and Gyratory Engines
Abstract
The article includes the results of the calculated and experimental study of the thermal state of the rotary frame heat exchanger with conical and cylindrical heat transfer elements. Calculations were carried out in the program complex ANSYS CFX, and the experiment on the regenerative gas turbine engine of GAZ Automotive Plant.
Izvestiya MGTU MAMI. 2011;5(2):23-27
23-27
Mathematical Model of Steady Movement of an Articulated Truck with an Active Trailer that Allows to Estimate the Losses in Transmission
Abstract
The article presents a developed mathematical model of steady direct motion of the articulated trucks with the active trailer that allows to estimate the losses in transmission, as well as the results of its analysis from the point of view of efficiency of the train.
Izvestiya MGTU MAMI. 2011;5(2):27-41
27-41
Synthesis of Direct Torque Control System of Asynchronous Traction Electric Drives
Abstract
The paper proposes a method for the synthesis of a direct torque control of asynchronous electric drives with separate control of the magnetic flow and electromagnetic torque. The authors show the results of simulation of asynchronous electric drive, advantages of the developed motor control system: ease of construction, high dynamic quality, small fluctuations of electromagnetic torque.
Izvestiya MGTU MAMI. 2011;5(2):41-46
41-46
Loading Control of Passenger Car Transmission in Urban Driving Conditions Using ECM System
Abstract
For improvement quality calculations units and details transmission car is necessary to know loading operating modes of transmission car. The article presents information about variant of the transmission loading control with use of information received with controller of engine management.
Izvestiya MGTU MAMI. 2011;5(2):46-51
46-51
51-56
Torsional Damper Placement in Vehicle Transmission
Abstract
The article considers the results of investigation of the effect on the forced frequencies of the transmission of torsional vibration damper arrangement. It is shown that it is advisable to install a damper of torsional vibrations in the flywheel.
Izvestiya MGTU MAMI. 2011;5(2):56-61
56-61
61-69
69-72
Designing of Basic Components of Systems of Vehicle Electrical Supply and Start-up Considering Real Service Conditions, Event and Algorithm
Abstract
The article is devoted to a technique of designing of generating installations, storage batteries and starter electric motors of vehicles, including electromachine converters of various type and appointment in the conditions of real operation. The technique developed by authors is based on use of a method of the imitating modeling, allowing to break maintenance the car into various events (dispersal, the braking, the established movement, parking on idling turns, braking by the engine etc.) on the basis of events and the experimental drive cycles received by authors on the basis of operational researches of various types of cars the algorithm of operation is made. On the basis of algorithm during any concrete moment of time it is possible to calculate frequency of rotation of a rotor of the generator and a current of loading of electric consumers. Results of operational tests confirm adequacy of developed by authors mathematical models of electrical supply system.
Izvestiya MGTU MAMI. 2011;5(2):72-78
72-78
78-84
Method of improving the performance of gasoline engine work with internal mixing
Abstract
Analyzes the problematic issues associated with the prospect of development of domestic automotive gasoline engines with internal mixing, which stimulate the need for search tools and new technical solutions that are acceptable for domestic engines. Noted the unacceptability of a direct copying of foreign decisions in domestic practice, not only because of the high financial costs for their implementation, but given the lack of technology and the necessary materials for their production. As an alternative, we propose a method that allows for minimal financial costs quickly solve an actual problem of domestic engine - the creation of the Russian automotive gasoline engine of a new generation with internal mixing. The method is based on the use of hydrogen as a chemical reagent that promotes improvement of ecological and economic qualities of the engine.
Izvestiya MGTU MAMI. 2011;5(2):84-95
84-95
Development and Research of a Mathematical Model of a Four-wheel-drive Vehicle with Electric Transmission
Abstract
The paper presents results of research of mathematical model of a linear motion of a four-wheel-drive vehicle with individual controllable drive from the electric drivetrain, which allows to evaluate traction-power performance of the vehicle under different operating conditions.
Izvestiya MGTU MAMI. 2011;5(2):95-105
95-105
106-110
Analysis of Formation of Machining Error in the Technological System of Combined Machining and Surface Plastic Deformation of Non-rigid Parts of the Hollow Cylinder Type
Abstract
On the basis of the study it is revealed that the formation of machining error for non-rigid parts of the hollow cylinder type depends on the errors of an installation, static and dynamic errors in setting the technological system of combined machining and surface plastic deformation.
Izvestiya MGTU MAMI. 2011;5(2):110-116
110-116
Studies of Microcutting Kinematics on Designing Grinding Heads to Form the Sealing Surfaces on the Parts of Pipe Fitting
Abstract
Authors study technologies of grinding sealing surfaces of pipe fitting saddles. The aim of research is to reduce complexity and improve the quality of the repair by mechanization of finishing stages of this process. In the present work mechanization is exercised due mobile grinding and lapping devices, the authors offered appropriate theoretical model of the kinematic process of microcutting for the circular motion of the oscillating plane-grinding or lapping disks.
Izvestiya MGTU MAMI. 2011;5(2):116-123
116-123
123-127
Influence of the Surface Energy of Metallic Specimens on Strength of Adhesive Joints
Abstract
The article discusses the influence of mechanical treatment on changes of surface energy of metal parts and the associated strength of the adhesive joints. The authors show the data of experimental studies on measurements of the surface energy of samples after various types of machining.
Izvestiya MGTU MAMI. 2011;5(2):127-130
127-130
Influence of Uneven Workpiece Allowance on the Output Parameters of Technological Equipment
Abstract
The article considers influence of non-uniformity of allowance of machined workpieces and the fluctuation of values of cutting depth and, hence, forces of cutting on elastic displacement of technological system and output parameters of accuracy of the equipment on manufacturing of parts of «rotation body» type.
Izvestiya MGTU MAMI. 2011;5(2):130-134
130-134
Process Optimization of Laser Processing in Terms of System-synergistic analysis
Abstract
The article considers the approaches to the problem of optimization of laser processing for decision of actual tasks of technology of mechanical engineering. The authors developed the technique of optimization of the laser processing technology, based on synergetic method of an estimation of basic parameters. Optimization results on basis of recurrence relationship allow formulating of requirements for technological efficiency of the laser processing.
Izvestiya MGTU MAMI. 2011;5(2):134-139
134-139
Influence of Residual Stresses on Product Quality on Cold Forming of Sheet Workpieces
Abstract
The authors present the experimental and estimated technique of non-destructive method of X-ray diffractometry as well as the results of investigation of residual stresses on cold forming of metals. The article describes the results of estimation of axisymmetric part quality by the criterion of residual stresses when manufacturing them by multistage rotary forming of sheet workieces.
Izvestiya MGTU MAMI. 2011;5(2):139-144
139-144
Simulation of Tool Contact with a Workpiece When Processing by Smoothing in the Kompas 3D Software
Abstract
The paper deals with the problem of accurate determining the area of contact of a tool with a workpiece in the processe of smoothing of outer cylindrical surfaces. As a tool for turning a plate were considered the standard geometry plates (SNMG). The article describes in detail the technique of simulation of contact interaction, the results of the analytical data processing.
Izvestiya MGTU MAMI. 2011;5(2):144-149
144-149
Registration Technique of Optical and Thermo Radiative Characteristics with Influence Compensation of Scattering Indicatrix of Heat-insulating and Thermal Barrier Materials and Coatings for Combustion Chambers of High Speed Diesel Engines
Abstract
The experimental stand is developed for registration of reflection and transparence coefficients in visible and IR diapasons, characteristic for radiant components of thermal fluxes for combustion chambers of diesel engines, turbine blades and a surface of aero-space apparatuses. Distinctive feature of the stand is a spectral photometric sphere for influence indemnification of scattering indicatrix (phase function). Estimations of scattering and absorption indexes of experimental and model samples of a semitransparent ceramic material on the base of stabilized zirconium dioxide for probing laser radiation at the fixed wavelengths 0,63 µm; 1,15 µm; 3,39 µm were carried out.
Izvestiya MGTU MAMI. 2011;5(2):150-155
150-155
Computer Simulation of Helical Groove Processing on the Workpiece of End-milling Cutter
Abstract
The paper describes a method of processing of helical end mills shaped surfaces of straight profile. The authors describe the possibility of processing the contoured surface of the helical cutter with a given profile by means of mathematical and computer modeling.
Izvestiya MGTU MAMI. 2011;5(2):156-164
156-164
Tekhnologiya uprochneniya poverkhnosti putem sozdaniya neodnorodnoy struktury pri azotirovanii v tleyushchem razryade
Abstract
Рассматривается способ упрочнения поверхности путем создания регулярной неоднородной структуры при азотировании в тлеющем разряде. Представлены экспериментальные результаты влияния эффекта полого катода на структуру и микротвердость в различных зонах обрабатываемой поверхности при импульсном режиме обработки.
Izvestiya MGTU MAMI. 2011;5(2):164-167
164-167
Link of the Dendritic Structure of the Alloy Solidifying in a Two-phase Zone with Diffusion Supercooling in the Model of Cellular Two-phase Zone
Abstract
The papers considers the links of the dendritic structure of metal solidifying in a two-phase zone, with a diffusion overcooling in it, through the use cellular models of two-phase zone. Considered theoretically the experimental results obtained by studying the connection of the diffusion overcooling in a two-zone crystallized alloy with a diffusion overcooling in it. The analysis is based on the use of cellular models of two-phase zone and the numerical solution of the equation. A satisfactory agreement of the change in the diffusion of overcooling in a two-phase zone, depending on its temperature (measured from the liquidus temperature of the alloy). Confirmed the theoretically derived relation between the parameter setting of the dendritic structure with a maximum diffusion overcooling of the alloy at a given cooling rate.
Izvestiya MGTU MAMI. 2011;5(2):167-173
167-173
Method for measuring small segments of cylindrical surfaces
Abstract
The paper deals with a new mathematical formulation of the problem of determining the parameters of cylindrical surfaces on the results of their measurements on coordinate measuring machines. Minimization function is supplemented by deviations of derived parameters from their nominal values, so the problem becomes well-conditioned for measurement of cylindrical surfaces in small areas.
Izvestiya MGTU MAMI. 2011;5(2):173-177
173-177
Technology of Threading of High-length Threads
Abstract
The work describes the process of threading of high-length threads using tangential heads, in which the length is not limited by the width of thread part of rollers, unlike normal thread rolling. It is achieved by different geometry of rollers, special positioning of them in relation to a part, and combination of feed rates in different directions.
Izvestiya MGTU MAMI. 2011;5(2):177-180
177-180
Analysis of the Mechanics of Cutting by a Cylindrical Drill with a Bridge
Abstract
The article presents the results of analytical study of mechanics of formation of cylindrical holes in solid material by a rotating tool. The analysis is performed by the energy method using the extreme positions of deformation mechanics at following assumptions. The processed material is considered isotropic, having strain hardening, that corresponds to the conditions of full cold deformation. In addition, it is assumed that the contact friction submits to the Coulomb law, that is proportional to the normal pressure at the contact, the hardening curve on a dedicated section approximated by a linear function. Two variants of cutting are investigated: the tool with the drill web, that has a negative rake, and the tool with the corrected drill web. It is shown that the traditional drill with a drill web is not an effective tool. Optimization of geometry of a drill web provides repeated reduction of axial force. The physical equations for calculation of power parameters of drilling based on the actual geometry of a cutting part of the tool, and also its central part named a drill web, are given.
Izvestiya MGTU MAMI. 2011;5(2):180-188
180-188
A Numerical Solution of the Stress Concentration Problem for the Case of a Three-layered Elastic Plane with the Two Identical Vertically Placed Circular Holes under Longitudinal Tension
Abstract
The authors present the results on the stress distribution in a longitudinally strained three-layered elastic plane with the two identical vertically placed circular holes, received by using a variational finite-difference procedure for solving plane elastic problems for the holed rectangular domains. The paper examines the effects of layer elastic constants on the level of stresses around the holes.
Izvestiya MGTU MAMI. 2011;5(2):189-195
189-195
Mathematical Modeling of Cyclic Deformation
Abstract
Based on the behavior of structural materials under cyclic elastic-plastic deformation and low cycle fatigue life assessment the authors established a system of mathematical modeling of cyclic loading of structures using finite elements. The paper considers the examples of solutions of test problems and real structures.
Izvestiya MGTU MAMI. 2011;5(2):195-202
195-202
Model of Elastoplastic Material at Nonisothermal Cyclic Loading
Abstract
The authors proposed the model of elastoplastic material at nonisothermal cyclic loading. The paper deals with comparison of calculations of cyclic elastoplastic stress-strain curve and experimental results of steel Х18Н9 at hard loading and high temperatures. Model of low cycle fatigue based on accumulated plastic strain is compared with Manson formula at high temperatures.
Izvestiya MGTU MAMI. 2011;5(2):202-207
202-207
The Problem of Classification of Political Consultants in Modern Russia
Abstract
The paper deals with the institute of contemporary Russian political consultants. The authors examined types of political consulting and proposed their own classification of political consultants in Russia. The special relevance of the work lies in the fact that the authors analyzed the problem through the prism of poorly studied phenomenon of political consumerism.
Izvestiya MGTU MAMI. 2011;5(2):208-211
208-211
212-217
Prospects of High-tech Development of the Russian Federation in Context of the Global Geopolitical Transformations
Abstract
Russia is part of a geopolitical system, and the transformation within the country are closely linked to external changes, which have a strong influence on an economic policy. The article presents an analysis of the factors getting an obvious trend in the distribution of the world community and an impact on the possibility of conceptual change in our country.
Izvestiya MGTU MAMI. 2011;5(2):217-225
217-225
The Risks of the Commercialization of Innovations
Abstract
The article examines the risks of the commercialization of innovation, conditioned by the state of the infrastructure. The analysis of the state in greatest critical to the success of innovative projects, infrastructure elements of the commercialization process of innovations. Based on the analysis, the authors formulate proposals to reduce risk by developing the necessary infrastructure in the innovation process.
Izvestiya MGTU MAMI. 2011;5(2):225-231
225-231
231-238
Sustainable Growth of Competitiveness as a Result of the Modernization of Russia on the Basis of Innovation
Abstract
Sustaining a high level of competitiveness and innovation activity can be achieved through the modernization and mobilization of the existing potential of the country. The article analyzes the scientific and technological structures, and suggests measures of state support to improve the efficiency of industrial enterprises on innovation basis.
Izvestiya MGTU MAMI. 2011;5(2):239-246
239-246
The Competitiveness of the Russian Automotive Industry as an Important Aspect of the Strategy of Development of the Automotive Industry in the Russian Federation
Abstract
The paper presents an analysis of some factors affecting the competitiveness of the Russian automotive industry sector. The basic development strategy of the automotive industry in Russia, the main directions of state policy in shaping the domestic car market with foreign partners, foreign investment and innovation. One reason for the low competitiveness of Russian car is problems in engineering education, the low level of funding and setting priorities of research and development activities.
Izvestiya MGTU MAMI. 2011;5(2):246-253
246-253
Influence of Population Settlement Pattern of Russian Federation on the Regional Economics of the Country
Abstract
The article has a goal to depict connection between population settlement pattern of Russian Federation and it's regional economic state, with the help of twenties century economic theories which have been based on cumulative growth theories. Latest innovation in world trade theory as a part of economical geography, together with constant growth of cities role in global economic system, make the urban structure a very actual topic. Author also makes an attempt of systemizing the indicators of such an analyses and offering conclusions and recommendations for development of Russian regions.
Izvestiya MGTU MAMI. 2011;5(2):253-259
253-259
259-263
The Information Revolution and Information Society
Abstract
The article examines socio-philosophical analysis of the problems of formation and development of information society, socio-cultural implications of the information revolution and the development of new information and communication technologies and their impact on human activities and life of modern society.
Izvestiya MGTU MAMI. 2011;5(2):263-267
263-267
Analysis of the Main Problems of Formation of the Modern System of Roadside Services on the Territory of the Russian Federation
Abstract
This article offers a brief analysis of the current state of the Russian automotive and road networks, interconnection of its facilities with roadside infrastructure, the exposed factors influencing the future development of roadside service. The authors suggested an approach to defining the goals and objectives to create service zones on federal highways.
Izvestiya MGTU MAMI. 2011;5(2):267-273
267-273
273-276
Organizational Design Adaptation Strategies Aviation Industry to the Environment
Abstract
The paper analyzes the trends affecting the design of adaptation strategies aviation industry to the environment. The authors study the activities of companies in a volatile external and internal environment. It is proposed organizational structure of the coarsened aviation enterprises. The basic principles and modalities for the strategy of adaptation are being developed.
Izvestiya MGTU MAMI. 2011;5(2):276-282
276-282
282-288
Monetary Problems of the Russian Economy
Abstract
The work is devoted to monetary policy in the Russian economy over the past two decades. The authors conduct the analysis of macroeconomic indicators for this period and assess influence of major factors on the real economy, and the economy in general. The research results may be useful in long-term planning of economic development of the national economy.
Izvestiya MGTU MAMI. 2011;5(2):288-293
288-293
Adaptation of the Teaching Methods of Material Science Course to Modern Conditions
Abstract
The paper considers the experiment on practical approbation of the technique, accepted in foreign practice, of training of the students of high schools on a cycle adjusting lectures-independent work-consultations-testing with reference to study of a subject "Material Science". The experimental technique is tested on two grade levels: by the students of younger courses getting base knowledge, that is necessary for the students of all specialities, and at training the students of the senior courses for the special chapters of material science with reference to their future speciality. By results of experiment the conclusion is made that it is early to enter an experimental technique into practice of training of the students of younger courses, and for the students of the senior rates the foreign technique can serve as addition to a traditional technique of teaching.
Izvestiya MGTU MAMI. 2011;5(2):294-297
294-297
Importance of Credit Norms in Student Physical Education
Abstract
The present article deals with pass tests for determining the level of student physical preparedness and of physical skill development. A variety of application options during different periods of education or training stimulates students to improve the state of their physical activity.
Izvestiya MGTU MAMI. 2011;5(2):297-298
297-298
Integration of Research Activities of Students and the Educational Process in Order to Create an Innovative Environment at the Department of "Chemistry"
Abstract
The role of involving of students of younger rates in research activity and influence of this process on perfection of educational process is considered in the article. Examples of use of elements of students research activity are resulted by preparation of course works and in the laboratory practical work realized at "Chemistry" department.
Izvestiya MGTU MAMI. 2011;5(2):298-302
298-302
New Directions of Bachelors Education on Technology of Construction Materials Department
Abstract
Since 2011 in MSTU МАМИ on Technology of Construction Materials department the two new directions of tutoring are opened: 150100 Pedagogical education, qualification - the bachelor of technological formation and 220600.62 Innovations, qualification - the bachelor of engineering and technique. Both directions should fit industry necessity of the highly-skilled personnel, capable to work on junctions of specialities: engineer - teacher and the engineer - the manager. Thus the area of employment of the graduate of university essentially extends. The bachelor of technological formation owning both design-engineering, and pedagogical knowledge by skills and abilities can work not only as a teacher in educational institutions of initial average and higher vocational training, but also the process engineer or the organizer of manufacture on state and in the private engineering operations. The bachelor of engineering and technology with both design-engineering, and management-economic knowledge skills and abilities can execute not only functions of the process engineer on manufacture, but also to participate in working out of investment projects of innovative engineering of the operations and architectures of the state and private sphere.
Izvestiya MGTU MAMI. 2011;5(2):302-305
302-305
305-310
Competitive Advantages of the University
Abstract
The author considers the classification of the competitive advantages of the university, depending on the internal and external environmental factors, by type of functional capacities. The article also presents a classification of competitive advantage based on tangible and intangible resources.
Izvestiya MGTU MAMI. 2011;5(2):310-316
310-316
The Formation of the Elements of Advanced Training of Students in Higher Education Based on an Innovative Approach
Abstract
The article considers basic problems of modern higher vocational training and competitiveness of industrial production on the basis of innovations. The authors present experience of foreign countries in the decision of the given problems, the concept, allowing to integrate capacities and process of training of students in high school is offered, and also necessity of creation of system of the continuous formation raising creative potential of the young scientist and as a result of promoting development of effective innovative products, services and the technologies extremely necessary for the domestic industry is proved.
Izvestiya MGTU MAMI. 2011;5(2):316-323
316-323
Linguistic-didactic Principles of the Intermediate Assessment to Meet the Requirements of Academic Mobility and Educational Standards of Third Generation
Abstract
The authors discuss the language training for foreign nationals studying programs of higher education. Defined and justified objectives of teaching Russian as a foreign language, the volume of workload. The presented material highlights the problems encountered in teaching Russian as a foreign language in the format of the educational standards. Are the requirements for the standards and the State levels of proficiency, uncovered their contradictions. Marked by the paradox of testing, confirmed the above examples. Confirmed the postulate that the exam - not just an instrument of control, but also an incentive to learning the material, which means that one way to improve the quality of education.
Izvestiya MGTU MAMI. 2011;5(2):323-329
323-329
Informatization of Laboratory Works in the Field of Metal Forming
Abstract
The article discusses the possibility of developing of a set of electronic laboratory routines based on CAD-systems. The authors show the possibility of application of T-FLEX CAD to develop a set of laboratory studies on the theory of metal forming.
Izvestiya MGTU MAMI. 2011;5(2):329-338
329-338