Vol 3, No 1 (2009)
- Year: 2009
- Articles: 55
- URL: https://journal-vniispk.ru/2074-0530/issue/view/3818
Articles
8-12
Oscillations of a Rotor of the Valve Traction Motor
Abstract
The article considers the structure of the valve traction motor with synchronous electromechanical transformer. Oscillations of the rotor of the synchronous motor may be caused by various reasons, e.g.: cyclic work of a traction inverter, pulsation of conductivity of operating air clearance, natural and forced oscillations of the rotor.
Izvestiya MGTU MAMI. 2009;3(1):12-14
12-14
Noise Reduction for Exhaust of the Piston Internal-combustion Engine with Coaxial Gas Outflow
Abstract
The article deals with the results of the numerical research of the engine exhaust noise reduction by means of coaxial arrangement of muffler exhaust pipes. This method provides significant exhaust noise reduction. The optimal ratios of pipe cross sections are determined.
Izvestiya MGTU MAMI. 2009;3(1):14-17
14-17
Analysis of the Effect of Restricted Stress-strain Adhesive Joint and Its Application in Bus Industry
Abstract
The article describes an effect which takes place in case of adhesive joint of two parts when elasticity modulus of these parts is much bigger than elasticity modulus of glue. The main point of the effect can be described as huge increase of glue layer compression-tension stiffness caused by conditions of glue material called tight stress-strain.
Izvestiya MGTU MAMI. 2009;3(1):17-24
17-24
Kolebaniya rulevogo upravleniya avtomobilya
Abstract
The article is about study of influence of steerable wheels disbalance and manufacturing inaccuracy of brake disks on and local vibration. There is the method of dynamic absorbing of resonance oscillations. The author suggests a principle design of a dynamic absorber of oscillations.
Izvestiya MGTU MAMI. 2009;3(1):24-27
24-27
27-34
34-37
Relation between Tire Rate Value and Vehicle Operation Performance
Abstract
The paper deals with the analysis of characteristics of rigidity of the tyre, such as: normal rigidity; lateral rigidity; longitudinal rigidity; angular rigidity; torsional rigidity. Influences of the above-stated characteristics on operational performance of vehicles are considered. The authors give recommendations of designing of new tyres taking into account their subsequent application on modern cars.
Izvestiya MGTU MAMI. 2009;3(1):37-40
37-40
Clutch Load Determination on the Basis of Test Data
Abstract
This article considers the method of experimental estimation of automotive friction clutch slipping work and power. The authors give the theoretical basis of the proposing method and estimate its precision. In this case the research time and expenses are reduced and decreasing of explored processes precision should not exceed 10 % which is acceptable for many engineering investigations.
Izvestiya MGTU MAMI. 2009;3(1):41-46
41-46
Accuracy Enhancement for Vehicle Motion Mathematical Model on the Basis of Test Results
Abstract
The article gives comparison of test results of all-wheel drive vehicle Gidrokhod-49061 equipped with hydrostatic transmission with the results of mathematical simulation under similar road conditions. By this comparison the mathematical model was corrected. Finally the adjusted mathematical model of motion is adequate to test results.
Izvestiya MGTU MAMI. 2009;3(1):46-56
46-56
56-60
Automatic Control of Hybrid Transmission of an All-Wheel Drive Vehicle
Abstract
The present article describes the bases of automatic control by an internal combustion engine and reversible hybrid drive under work in mode of traction electric motor and generator of the all-wheel drive, multi-purpose car with parallel hybrid drive on an example of a UAZ 3153 car equipped with hybrid power instalation.
Izvestiya MGTU MAMI. 2009;3(1):60-67
60-67
Approximation of Engine Part-load Curves
Abstract
The paper examines the problem of mathematic description of partial characteristics of the internal combustion engine. It is the most advisable to describe the experimental speed performance of engine by means of the multidimensional spline approximation. This method provides creating the surface which copies the experimental speed performance with rather range of accuracy.
Izvestiya MGTU MAMI. 2009;3(1):68-71
68-71
Dependence of Vehicle Stopping Distance on Driver's Psychophysiologic Condition
Abstract
Commercial vehicles play an essential role of physical distribution, working as indispensable means of transportation and play as our dependable partner in our social life. On the other hand, problems of traffic accidents are key issues which we must solve more urgently. Driver condition monitoring systems are the basic branch of transportation safety field.
Izvestiya MGTU MAMI. 2009;3(1):71-73
71-73
Application of Material Structuring Methods for Improvement of Vibroacoustic Properties of Panels, Laminated Gaskets in Passenger Cars
Abstract
Results of experimental researches structured noisereduced materials and the details that have been lead with use of specialized laboratory - bench installations (Cabin Alpha, Tower Pisa, RTC-3, Oberst) are submitted. Illustrative examples of constructive - technological structurization of details (linings, panels and upholsteries), providing decrease in noise of vehicle are resulted. Results of the researches lead by authors testify to essential reserve increase in acoustic efficiency noisereduced materials and details.
Izvestiya MGTU MAMI. 2009;3(1):73-85
73-85
Selection of Method for Electronic Gear Control
Abstract
The article examines solution of the task of gear control in tractor transmissions. There are three main layouts of friction clutch installation within tractor transmission. For each one the mathematical formulation is given. The authors suggest possible criteria for selection of gear control method under load.
Izvestiya MGTU MAMI. 2009;3(1):85-90
85-90
Optimization of Transmission Control Laws for All-wheel Drive Vehicles with Individual Drive Per Wheel
Abstract
The article considers results of analytical study on optimization of power distribution in multiaxis all-wheel drive vehicles. On the basis of multicriterion optimization methods the authors conducted the research influence of interaxial and cross-axle power distribution on vehicle controllability, stability and fuel efficiency.
Izvestiya MGTU MAMI. 2009;3(1):90-98
90-98
Dimensioning in Combined Cutting-deforming Machining with Axial Oscillations
Abstract
The paper examines dimension processing in the technological system for combined cutting-deforming machining of needle shafts class. Actually dimension processing provided by cutting block, while the rollers of deforming part forming of surface roughness with plastic deformation method. Detail the process of the axial oscillation for removal of elastic-reduced metal after cutting. The mathematical model for calculating the error of machining consists of two parts. Computer modeling and subsequent analysis of the solutions will help to design technological process of combined cutting-deforming machining of needle shafts class and assign these modes of machining, which will provide the quality of demanded parameters: the dimension of part and surface roughness.
Izvestiya MGTU MAMI. 2009;3(1):99-102
99-102
Electron Work Function of Refractory Metal Alloys
Abstract
The article considers experimental investigation of influence of tungsten alloying by transitive metals of IV A - VI A groups on its thermoemission properties. It is established that at temperatures of test 1500 and 2400 С almost monotonous reduction of electron work function of pure tungsten is observed after additing of the given alloying elements. It is shown that at a certain temperature on surface of the sample the layer of atoms of zirconium adsorbed from internal volumes is formed that essentially increases alloy thermoemission.
Izvestiya MGTU MAMI. 2009;3(1):102-104
102-104
105-109
Manufacturing of Round and Square Hot-rolled Bars of Nickel and Titanic Alloy on the Rolling Mill 280 - 380
Abstract
The rolling process of titanium and nickel alloy-based round and hexagonal rods using the «280-380» mill is considered. The technical specification of the rolling mill and straitening machine is given. The paper considers power data calculation which is important for forming tool correction. The above mentioned equipment makes possible to roll the rods of required shape and provide high mechanical properties of rolled materials.
Izvestiya MGTU MAMI. 2009;3(1):109-111
109-111
Cutting Method for Roll Material Decks by High-pressure Water-ice Flow
Abstract
The article describes a new cutting method for decks of rolled materials with application of high pressure water-ice flow as a cutting tool. The authors consider the equipment, the water-ice tool and means of technological equipment used during carrying out of experimental researches.
Izvestiya MGTU MAMI. 2009;3(1):111-114
111-114
Determination of Optical Centers of Emission in a Plastic Scintillator Irradiated by UV-laser
Abstract
Photoprocesses in a plastic scintillator irradiated by UV-laser were studied. The spectral properties and structure of photoproducts in irradiated plastic scintillator were found. The mechanism of photochemical processes leading to radioluminescence signal decrease in the scintillator during its usage has been suggested
Izvestiya MGTU MAMI. 2009;3(1):114-118
114-118
Improvement of Labor Protection in the Scientific-Production Association of Measurement Technique
Abstract
In current economic conditions manufacturers of electronics, measurement, and radio engineering intend to improve quality and competitiveness of their products, so they develop, implement and certify quality management system. The authors propose improvement of safety in these enterprises by integrating aspects of safety into the quality management system.
Izvestiya MGTU MAMI. 2009;3(1):118-121
118-121
Monitoring of Microarc Oxidation Process with Application of personal computer
Abstract
The article considers monitoring of the microarc oxidation process via PC. A series of computer programs is developed. The obtained results allow to assess the sustainability of the process in various modes and at different stages of the process of oxidation and to determine the time of transition to a dangerous regime.
Izvestiya MGTU MAMI. 2009;3(1):121-123
121-123
Vibration of the Cross-section of a Nonrigid Hollow Cylinder Unit under Combined Treatment by Cutting and Surface Plastic Deformation
Abstract
The process of combined machining by cutting and surface plastic deformation of nonrigid smooth hollow cylinder parts leads to creation of radial, bending and complex twisting oscillations of cross-sectional view of the part blank. These oscillations have an effect on dimension parameters of the combined machining of parts.
Izvestiya MGTU MAMI. 2009;3(1):124-127
124-127
Determination Peculiarities of Static and Ddynamic Quality Index of Basic Parts
Abstract
In modern machine-tool industry welded base constructions are rather widely used. The calculation is realized, as a rule, without the consideration of weld joints and the change of material properties in heat-affected area. In this project the task of development and check of effective simulation of base details on the basis of Finite elements method is solved.
Izvestiya MGTU MAMI. 2009;3(1):127-134
127-134
Statistical Analysis of Accuracy for Electrochemical Working of a Compressor Blade
Abstract
The article is about statistical investigation of accuracy achieved with electrochemical machining of gas turbine engine compressor blades. On the base of received data the authors propose improvement the output technical characteristics of ECM operation. It is shown that dimensional accuracy approximately 0.1 mm and surface efficiency nearby Ra = 1,6 mcm are reliably realized during ECM.
Izvestiya MGTU MAMI. 2009;3(1):134-138
134-138
Organization of On-line Information Analysis in the System of Decision Making by Results of Factory Testing of Products
Abstract
The article is about peculiarities and principle of operative information analysis in the system of decision making support for industrial testing of devices are considered. The main goal of the device assessment is to select devices capable of utilization. The information analysis orientates on detection and consequent tracking of the joint tendency of device parameter changing. The vector autoregression which connects current and past values of parameters is used to model the devices during their industrial testing.
Izvestiya MGTU MAMI. 2009;3(1):138-144
138-144
Innovative research and development based on of 3D parametric modeling technology
Abstract
The paper presents the results of innovative research and development based on of 3D parametric modeling technology. Due to the time-saving for R&D, the use of three-dimensional models makes it possible to hasten the preproduction process and to increase the competitive ability of new products. Some examples of the developed projects are presented.
Izvestiya MGTU MAMI. 2009;3(1):144-147
144-147
Manufacturing Capabilities of Brushes with Abrasive Polymeric Fibres
Abstract
Abrasive-polymeric brushes have been known since 80s. They were successfully applied at internal surface machining for deflashing of leading edges in hydraulic distributor bores. Authors conducted operation of deflashing on milled crown of caps by means of brushes with abrasive polymeric fibres. Selected operation modes ensured high quality and reduced time of treatment.
Izvestiya MGTU MAMI. 2009;3(1):148-151
148-151
Principles of Extruding Forging Die Design
Abstract
This paper is about die design principles according to technical, social and economic demands by example of development of cold forging procedure ball pin body. Authors analyzed metal flow kinematics under product shaping on forging transitions with computer modeling. There are local effects going with forming process, including distribution and changing of specific forces on die walls and punch and pusher faces.
Izvestiya MGTU MAMI. 2009;3(1):151-156
151-156
Efficiency of Risk Reducing Measures (ferric impurity removal) for Safety Operation. Residual Risk.
Abstract
There were introduced and analyzed such concepts as reduction of risk (including relative risk), and residual risk, that depends on removal from working medium ferroimpurities. There were found functional relatives with argument as efficiency of ferroimpurities removal and residual fraction of ferroimpurities in the working medium.
Izvestiya MGTU MAMI. 2009;3(1):156-160
156-160
Ways of Energy Intensity Reducing for Hydrocutting of Sheet And Roll Nonmetallic Material
Abstract
The article is about the analysis of modern ways of cutting of nonmetallic materials with application of energy of high-speed liquid streams with instructions of their merits and demerits. New ways of cutting of sheet and rolled materials, based on application of energy of high-speed liquid streams allow to lower power consumption of existing processes considerably.
Izvestiya MGTU MAMI. 2009;3(1):160-165
160-165
Application of Probabilistic Approach to Describe the Kinetic Curves of Dissolution And Leaching of Magnetite
Abstract
Proposed kinetic analysis of the processes of dissolution is based on use of principles of synergetics, fractal geometry, heterogeneous kinetics, using probabilistic approaches to the description of the interaction of oxide with a solution. The authors investigated in details the mechanisms of dissolution of magnetite and other oxides of iron in sour environments with the purpose to determine the mathematical equations that describe the kinetic curves of dissolution and leaching of magnetite.
Izvestiya MGTU MAMI. 2009;3(1):166-173
166-173
Basic Regularities of Electrochemical Behavior of Steel 10 in the Anodic Polarization in Sulfate And Carbonate Solutions at Different Ph Environments
Abstract
The effect of carbonate ions for the type of polarization curves under anode polarization in carbonaceous solutions under different pH environments is investigated. The existence of two peaks on the curves of current-potential is shown. The substantiation of influence of carbonate ions on the anodic process is given. The mathematical model of dissolution of iron in carbonaceous solutions is offered .The mechanism of the description of polarizing curves of dissolution of iron in neutral and alkaline conditions is given.
Izvestiya MGTU MAMI. 2009;3(1):173-179
173-179
The Computerized Means for the Automation of Qualifying Operations Based on Labview Technology
Abstract
The problems of the high-precision and automated control are actual for all branches of modern mechanical engineering. Modern trends dictate necessity to create the highly effective computerized information-measuring systems. One of the most effective means of establishing computerized systems of gathering and data processing is the software LabVIEW. The program of gathering and data processing from laser measuring system (LMS) with module application of data gathering PCI-1202H created by ICP DAS is described in Lab VIEW.There are modules of the program, created in the graphical programming language G (J). The methods of programming of computerized measuring systems are described. The results of experimental studies of created LMS with the computerized system of gathering and data processing are shown.
Izvestiya MGTU MAMI. 2009;3(1):179-185
179-185
The Films with Low Dielectric Permittivity on the Basis of Lyotropic Liquid Crystals
Abstract
The possibility of preparation of solid porous films with low dielectric constant for use in nanoelectronics was demonstrated on example of the CTAB/TEOS/NaSal and CTAB/TEOS/TCS-2 novel precursor solutions. The dielectric constant and mechanical modules of these films were measured. The possibility of use of supercritical CO2 for improvement of the film characteristics was shown.
Izvestiya MGTU MAMI. 2009;3(1):185-192
185-192
Role Play As a Means of Shaping the Social And Cultural Competence of Students-Economists in the Technical University
Abstract
This paper describes the theoretical and practical components of formation of cross-cultural competence for students-economists by using a role-playing game. There are conditions that ensure the maximum efficiency of this kind of student's speech activity. Analysis of the procedural part of the linguistic interactions in role-playing games are provided. The characteristic of language material taking into account features of foreign language teaching in the conditions of technical university is given.
Izvestiya MGTU MAMI. 2009;3(1):193-196
193-196
Possible Risks in the Implementation of Major International Projects (by Example of the Black Sea Ring Road)
Abstract
In this paper the authors attempt to analyze the three main types of risks: financial and macroeconomic, geopolitical, and international, as well as technological and environmental. At the same time, the authors make the market optimistic that the creation of a modern transport infrastructure is so urgent problem that the Black Sea state, in any case be forced to take its decision within their territories, even without linking it with the unified plan.
Izvestiya MGTU MAMI. 2009;3(1):196-200
196-200
Directions of Activization of Universities in the Process of Building a Sustainable Competitiveness
Abstract
The questions focused on optimum use of innovative potential at integration processes of universities with manufacture and research organizations. Proposed to strengthen the role of Academic Boards and Councils for the Protection of doctoral and master's theses in the field of scientific expertise and innovative management functions, as well as advance training. Attention focuses on the distribution of system of confidential management in institutions and formation of the management of innovation development.
Izvestiya MGTU MAMI. 2009;3(1):200-205
200-205
Controllability and Stability in Macroeconomic System
Abstract
The problem of stability and controllability of economic facilities in industrial cycle development are investigated. The authors made estimation of vehicle manufacture growth dynamics in various phases of development of an industrial cycle. The reasons of unsustainable development processes in the economy are revealed.
Izvestiya MGTU MAMI. 2009;3(1):206-210
206-210
Practical Realisation of the Innovative Approach to Foreign Language Training in Non-linguistic Universities
Abstract
It is obvious that during the intensive process of informatization of education, new approaches, methods, new teaching materials are developed. The objective of this article focus on such methods as training in collaboration, project method, learning problems, notably : discussion, role-play problem orientation, etc. Because they're the most effective methods for the formation of linguistic and communicative competence of students at not language universities on material of socio-technical issues of the Internet, which is a priority today.
Izvestiya MGTU MAMI. 2009;3(1):210-215
210-215
Estimation of Real Cost of Assets as the Factor of Anticipatory Management Today
Abstract
The article discusses issues related to the valuation of the assets of the company, shows the significance of the degree of objectivity of such assessment for the country's economy and anticipating crisis situations. The valuation of assets, used by Russian companies are studied. Methods to improve the objectivity of this evaluation to improve management are proposed.
Izvestiya MGTU MAMI. 2009;3(1):215-220
215-220
220-223
The Formalization of Evaluation Indicators of Long-Term Forecasting Conditions of Trucks Russian Market
Abstract
The authors propose a formalization of the measurement of indicators of long-term prediction market of the trucks Russian market which based on market research. It's provide the use of modifications of inter-sectoral balance model, a multifactor regression model, the model flexibility and data-processing model.
Izvestiya MGTU MAMI. 2009;3(1):223-228
223-228
Economic Background for Making Hybrid Vehicles
Abstract
This paper deals with economic preconditions of creation of cars with a hybrid power installation. The results of the tests confirming decrease of the expense of fuel and toxicity of fulfilled gases of experimental car MAMI with a hybrid power installation on fuel profitability and toxicity of fulfilled gases are resulted.
Izvestiya MGTU MAMI. 2009;3(1):228-230
228-230
230-233
Some Problems of Higher Education in the Modern World
Abstract
The article analyses the level of mathematical preparation of graduates from the Russian schools. Problems of students' adaptation to the university education are considered. Problems of the transition to the two-level system of professional training are discussed.
Izvestiya MGTU MAMI. 2009;3(1):234-238
234-238
Preparation of a Modern Specialist in Higher Vocational Education
Abstract
The connection between the economic and cultural state of the society and the educational system is analyzed in the article. The question of professionally competent engineering staff in the context of the requirements of the modern society are discussed and suggests the ways to resolve it.
Izvestiya MGTU MAMI. 2009;3(1):238-242
238-242
242-249
Modern Technologies for Training of Engineers at the Technology of Mechanical Engineering Department
249-252
Innovative Technology and Training Teachers for Secondary Education
Abstract
This article discusses the possibility of combining traditional and modern information technologies in educational process. A program of the course «Modern technologies of training» for the professional development of teachers is offered. Necessity of introduction on faculty of improvement of professional skill teachers of a rate "Information networks and telecommunications" is proved.
Izvestiya MGTU MAMI. 2009;3(1):252-256
252-256
Substantiation for the Innovative Training for Industrial Enterprises Specialist
Abstract
The article shows the need for the development of enterprises based on innovation introduction. The aggravation of a personnel situation in the industry of the Russian Federation is noted. It's considering the problem of interaction between enterprises and universities and suggests some solutions by means of creation the corporate education space.
Izvestiya MGTU MAMI. 2009;3(1):256-262
256-262
262-264