Vol 1, No 1 (2013)

Articles

Development and research of a high-performance fan for a liquid-cooling system of a truck turbo diesel

Andreyenkov A.A., Kostyukov A.V.

Abstract

On the basis of performed mathematical study of fan units the authors defined the parameters of a high-performance fan of diagonal type for a liquid-cooling system of a 397 kW turbo-diesel of a heavy-duty vehicle and estimated its fuel consumption at nominal power mode.
Izvestiya MGTU MAMI. 2013;1(1):6-10
pages 6-10 views

Structural alterations of an engine when switching to gasoline-ethanol fuels

Basilevkin E.V., Egorov V.N., Runovskiy K.S.

Abstract

The article examines the structural alterations in various systems of internal combustion engines with spark ignition, which are required when switching engine to gasoline-ethanol fuel with different concentrations of ethanol.
Izvestiya MGTU MAMI. 2013;1(1):10-14
pages 10-14 views

Mathematical problems of calculating the multi-zone models of a cycle of internal combustion engine with spark ignition

Apelinskiy D.V., Shenderovskiy I.M., Runovskiy K.S.

Abstract

The article describes the features of mathematical models of internal combustion engine cycles which do not allow to put ordinary differential equations (ODE) of these models in the Cauchy form. The authors proposed a stable algorithm of numerical integration of ODE systems that are not solved with respect to derivatives, using Hermite splines and methods of nonlinear programming.
Izvestiya MGTU MAMI. 2013;1(1):15-22
pages 15-22 views

Use of FDK-124 coordinate photodetectors in laser analyzers of gas pollution by harmful impurities

Ashcheulnikov E.K., Klimova E.V., Tarasova L.I.

Abstract

The article considers the application of laser light sources in exhaust gas mixture analyzers of automotive internal combustion engines. The authors show functional diagram of the installation where it is possible to carry out experiments on testing and selection of lasers for use in analyzers of gases contaminated by impurities. The possibility of using the coordinate photodetectors of FDK-124 type in analyzers of gas, polluted by microparticles, is presented as well.
Izvestiya MGTU MAMI. 2013;1(1):22-28
pages 22-28 views

Influence of parameters and conditions of rolling of elastic wheels on their power and kinematic characteristics

Balabina T.A., Balovnev N.P., Ivanov V.A., Chepurnoy S.I.

Abstract

The article considers the effects occurring in contact of an elastic wheel with rigid base; the issues of kinematics and mechanics of rolling of elastic wheels with cylindrical and toroidal shape of a cap on a rigid base during the rectilinear and curvilinear motion, with lateral skid and without it, on rigid drums. The authors identified relationships not known earlier, influence of parameters and conditions of wheel rolling on its power and kinematic characteristics.
Izvestiya MGTU MAMI. 2013;1(1):28-32
pages 28-32 views

Determination of camber and toe angles ratio for elastic wheels, providing the lowest rolling resistance

Balabina T.A., Mamayev A.N., Chepurnoy S.I.

Abstract

The authors consider issues of kinematics and mechanics of rolling of elastic wheel set with various camber and toe angles.
Izvestiya MGTU MAMI. 2013;1(1):32-37
pages 32-37 views

Mathematical model of heat transfer in the exhaust system of gasoline engine

Bell S.S., Erokhov V.I.

Abstract

The authors consider theoretical processes of heat exchange in the exhaust system of gasoline engine. From the results of calculations of the mathematical model of heat transfer processes, it is concluded that a detailed analysis of the dynamics of combustion of fuels requires strict consideration of all physical processes including processes of convective heat transfer between live gas and products of combustion and structural elements of a shell.
Izvestiya MGTU MAMI. 2013;1(1):37-41
pages 37-41 views

Computer-aided designing of turbine blades with parabolic contours

Vinogradov L.V., Kostyukov A.V.

Abstract

In the paper the authors study the problem of turbine blades design. For computer-aided design in Mathcad the application program was developed as an element of the CAD system. A blade is shaped by three parabolas: back side– by one parabola, and pressure side – by two parabolas prescribing the maximum thickness of the profile. The program was tested on more than 30 profiles of blades for gas turbine engines.
Izvestiya MGTU MAMI. 2013;1(1):41-47
pages 41-47 views

Features of construction of static characteristics of independent suspensions of all-terrain vehicles by means of a spatial model

Gorobtsov A.S., Kartsov S.K., Polyakov Y.A.

Abstract

The spatial model of all-terrain vehicle was designed to obtain static characteristics of independent suspensions considering actual suspension kinematics and features of its mounting on a vehicle.
Izvestiya MGTU MAMI. 2013;1(1):47-52
pages 47-52 views

Method of generation a torque in hybrid and combined powerplants

Grabovskiy A.A., Maksyashev I.A.

Abstract

The paper presents theoretical study of possible ways of torque generating in hybrid and combined powerplants with possible changes of efficiency and environmental indicators.
Izvestiya MGTU MAMI. 2013;1(1):52-60
pages 52-60 views

Estimation of efficiency of internal combustion engine in terms of quality index of system operation

Grabovskiy A.A.

Abstract

The author presents the methodology of estimation of the quality of operation of internal combustion engines as a part of a complex anthropotechnical system. System’s factor of safety was calculated as well as the numerical values of quality level of the entire system and its subsystems. The conclusions are about the need of improvement of the internal combustion engines.
Izvestiya MGTU MAMI. 2013;1(1):60-67
pages 60-67 views

Formation of diesel engine load curves by means of shutdown of operating cycles

Grishin D.K., Patrakhaltsev N.N., Emmil M.V.

Abstract

The way of the formation of diesel engine load curves by means of shutdown of operating cycles is considered in the paper. The authors give the corresponding relations of the internal combustion engine theory and dependence plot of the number of working cylinders and the total number of engine cylinders.
Izvestiya MGTU MAMI. 2013;1(1):67-70
pages 67-70 views

Cooling of rotary heat exchanger frame

Dementyev A.A., Kostyukov A.V.

Abstract

The paper presents the results of the design study of a cooling system of rotary heat exchanger frame. The analysis of the existing frame cooling systems of heat exchangers is performed.
Izvestiya MGTU MAMI. 2013;1(1):70-73
pages 70-73 views

Stabilization of thermal stress in tires of vehicle track rollers

Derzhanskiy V.B., Taratorkin I.A., Taratorkin A.I.

Abstract

The article provides a rationale method for stabilizing thermal stress in tires of vehicles track rollers by choosing the angle of suspension unit setting.
Izvestiya MGTU MAMI. 2013;1(1):73-78
pages 73-78 views

The use of oxygenates in motor fuels for internal combustion engines with spark ignition

Egorov V.N., Vasilevkin E.V., Apelinskiy A.V.

Abstract

The article considers the most promising oxygenates used in motor fuels to improve the energy and environmental performance of internal combustion engine with spark ignition.
Izvestiya MGTU MAMI. 2013;1(1):78-82
pages 78-82 views

Non-contact gesture control systems as a basis for building of H2C-interfaces in automatic control systems

Idiatullov T.T., Chabanenko E.B., Nechushkina M.A.

Abstract

The authors consider the problems of creation and operation of human oriented control systems that use contactless gestural interfaces. There is an analysis of existing approaches done and assumptions about the most effective approaches to the construction of such systems.
Izvestiya MGTU MAMI. 2013;1(1):82-87
pages 82-87 views

Ways to improve safety of vehicles using the parameters of angular orientation of steering wheels

Krasavin P.A., Lukyanov M.N., Nadezhdin V.S., Rybakova M.R.

Abstract

In the paper the authors put forward the concept of increasing active safety of automobiles by mean of forced speed reduction in the curvilinear motion taking into account the angles of the axes of steering wheels and the roll of unsprung masses. The authors provide the proof of the concept by the criteria of maneuver maximum speed with limitation by roll-over resistance.
Izvestiya MGTU MAMI. 2013;1(1):88-91
pages 88-91 views

Control of air pressure in the tires of cars

Krasavin P.A., Smirnov A.O., Timayev D.M.

Abstract

In the paper the authors put forward the concept of increasing active safety of vehicles by controlling the air pressure in the tires of cars. The authors consider that the control of the air pressure in the tires is necessary because it directly affects the performance in handling and stability, especially automobiles.
Izvestiya MGTU MAMI. 2013;1(1):91-96
pages 91-96 views

Hydrostatic drive in transmissions of special self-propelled vehicles

Krumboldt L.N., Golovashkin F.P., Strelkov A.G.

Abstract

The authors analyzed the working principle of hydrostatic transmission with adjustable hydraulic machines. A method for determining the range of variation of the transmission ratio of the controlled hydraulic machines with power loss is presented as well. There are mechanical properties of hydrostatic transmission with adjustable hydraulic machines with sequential mode acceleration of its driven member. There is considered full flow transmission of a utility tractor "BIMA-300" (France), and its evaluation is given.
Izvestiya MGTU MAMI. 2013;1(1):96-104
pages 96-104 views

The method of selection of the main elements of the hydrostatic transmission wheeled machine

Kyrmaev R.K., Kruglov S.M., Lepeshkin A.V., Medvedev A.S., Kuru D.S.

Abstract

The article presents a method of calculation that is proposed for use when selecting the main elements hydrostatic transmission of drive wheels self-propelled machines.
Izvestiya MGTU MAMI. 2013;1(1):104-109
pages 104-109 views

Improving of starting characteristics of petrol-ethanol internal combustion engines during cold start and warm-up

Lavrov S.V., Abramov A.A.

Abstract

The article deals with methods to improve the starting characteristics of internal combustion engines with spark ignition running on petrol-ethanol fuels with different concentrations of ethanol.
Izvestiya MGTU MAMI. 2013;1(1):109-112
pages 109-112 views

Study of oscillations of the automobile power plant

Lomakin V.V., Yemelyanov A.E.

Abstract

The article describes an estimated model of a vehicle powerplant. This model takes into account the fluctuations of the power unit along and around the three axes and considers the impact of the transmission to the whole picture of the oscillations of the power unit. The mathematical description of the computational model of the power unit is presented on the example of a small class car.
Izvestiya MGTU MAMI. 2013;1(1):112-114
pages 112-114 views

Assessment of impact of reactive units to oscillations of an automobile power plant

Lomakin V.V., Yemelyanov A.E.

Abstract

+7 (495) 223-05-23, eae@list.ru The article summarizes the estimated model of a vehicle powerplant. This model takes into account the oscillations of the power unit along and around the three axes and considers impact of the transmission to the whole picture of the oscillations of the power unit. The mathematical description of the computational model of the power unit is presented on the example of a small class car.
Izvestiya MGTU MAMI. 2013;1(1):114-117
pages 114-117 views

Engineering materials for pistons of internal combustion engines

Makarov A.R., Smirnov S.V., Osokin S.V., Pyatov I.S., Vrublevskaya Y.I., Finkelberg L.A.

Abstract

This article provides an overview of modern construction materials for production of pistons for internal combustion engines including composites. A comparison of mechanical and thermal properties of these materials is presented. It is reported on the experience of production of pistons made from carbon composite in Russia.
Izvestiya MGTU MAMI. 2013;1(1):118-125
pages 118-125 views

Engineering method of calculation of gasdynamic foil bearings of turbocompressors

Merkulov V.I., Plykin M.E., Tischenko I.V.

Abstract

In the article there is considered the engineering method of calculation of gasdynamic foil bearings. There are executed calculations according with this method and there is executed the comparison of results which were received by other authors.
Izvestiya MGTU MAMI. 2013;1(1):126-132
pages 126-132 views

Endurance testing of tractor friction clutches

Mikhaylov V.A., Sharipova N.N., Esenovsky-Lozhkov M.Y.

Abstract

The authors offer the technique of forced life testing of tractor friction clutches imitating their mode of loading in actual operation. The forcing of endurance bench-testing of friction clutches according to the proposed method compared to the common performance is increased by 6 ... 10 times depending on the design of friction pairs, materials and conditions of loading operation.
Izvestiya MGTU MAMI. 2013;1(1):133-141
pages 133-141 views

Determination of rational gear ratio of inter-wheel differential while upgrading the transmission of multi-purpose vehicle

Murog I.A.

Abstract

The paper proposes a method of determination of rational gear ratio of inter-wheel differential of all-wheel drive vehicles and evaluation of the effectiveness of its use to improve the performance of vehicles.
Izvestiya MGTU MAMI. 2013;1(1):141-145
pages 141-145 views

Segmentation of the market for agricultural tractors for its analysis and forecasting

Mininzon V.I., Parfenov A.P.

Abstract

The authors offer a method of segmentation of the market for agricultural tractors according to their pulling force and power, allowing more effectively analyze and predict the market comparing to conventional methods of segmentation according to engine power of a tractor.
Izvestiya MGTU MAMI. 2013;1(1):145-153
pages 145-153 views

LED lighting of automobiles and tractors

Pakhomova E.E., Gorkin V.P.

Abstract

The article considers the possibilities of application of high-brightness semiconductor light-emitting diodes in lighting systems of automobiles and tractors. There are shown the main parameters of LEDs and circuit diagrams of their connection.
Izvestiya MGTU MAMI. 2013;1(1):153-158
pages 153-158 views

Aerodynamic drag of radiator in unsteady air flow

Petrov A.P.

Abstract

Nonuniform distribution of velocity of cooling air over the front surface of a radiator increases its drag. The paper analyzes the factors affecting the increase of aerodynamic drag under the influence of unsteady air flow. The degree of drag change depends on aerodynamic properties of radiator core, namely, the curvature of the graph of aerodynamic characteristics of a radiator and nonuniform air velocity field over the front of a radiator. In actual use, increase of drag of a radiator can be more than 20%.
Izvestiya MGTU MAMI. 2013;1(1):158-162
pages 158-162 views

Multilevel integrated quality management system for electrical equipment at automobile lifecycle stages

Pimkina E.S., Kozlovskiy V.N., Maleyev R.A.

Abstract

The paper provides a description of a multilevel quality management system at stages of lifecycle on the example of electrical equipment of an automobile.
Izvestiya MGTU MAMI. 2013;1(1):162-166
pages 162-166 views

Simulating management system as a tool to control quality stability of production of electromechanical transducers

Polyakova E.V., Kozlovskiy V.N., Maleyev R.A.

Abstract

The paper provides a description of the simulation management system for control of manufacturing process of electromechanical transducers, designed for stabilizing the reliability of production.
Izvestiya MGTU MAMI. 2013;1(1):166-171
pages 166-171 views

Apparatus for production of methyl ether from vegetable oil

Belov V.P., Zuyev N.S., Pugachev I.O., Apelinskiy A.V.

Abstract

This article is devoted to the study of existing methods and systems for production methyl ethers of fatty acids from rapeseed oil. Analyses and comparison are also mentioned. The description of production plant for production of methyl ethers from vegetable oil is given in the article. The authors describe its principle of operation taking into account rapeseed oil and production of methyl ethers from rapeseed oil. The advantages and disadvantages of each method and plant are indicated as well.
Izvestiya MGTU MAMI. 2013;1(1):171-179
pages 171-179 views

Analysis of kinematic and power parameters of rolling wheel propulsor

Sergeev A.I., Esakov A.E., Kruglov S.M., Cherniy I.V.

Abstract

The authors consider the relationship between kinematic parameters and energy properties of rolling wheel propulsor. The authors solve the problem of the existence of solutions for three-dimensional system "rolling wheel propulsor - bearing surface" when forming a bearing surface. The research also establishes the relationship between the speed of motion of the system and the nature of vibrations affecting ride comfort of a vehicle.
Izvestiya MGTU MAMI. 2013;1(1):179-184
pages 179-184 views

Design and manufacture of test bench for simulation of movement of a vehicle driven by electric motor

Serebryakov V.V., Baulina E.E., Kondrashov V.N.

Abstract

The article describes the stages of the project development, design and technological solutions in the production of units of the test bench for simulation of movement of a vehicle driven by electric motor.
Izvestiya MGTU MAMI. 2013;1(1):184-191
pages 184-191 views

Device for recording microprofiles of an automobile road

Stepanov I.S., Bernatskiy V.V.

Abstract

The article describes schematic diagrams of devices used to record microprofiles of automobile roads, their advantages and disadvantages. The authors propose construction diagram, free from most of the disadvantages.
Izvestiya MGTU MAMI. 2013;1(1):191-195
pages 191-195 views

Transients in hydraulic drive of a fan for engine cooling system of a vehicle

Trukhanov K.A.

Abstract

The article describes the mathematical model and the calculation of the transients in designed hydraulic drive of a vehicle cooling system. There is presented the verification of the mathematical model using results of test of hydraulic drive specially built for designed system. The author carried out the comparison of the calculated pressure transients with other ones obtained during the test of prototype of hydraulic drive for cooling of vehicle engine.
Izvestiya MGTU MAMI. 2013;1(1):195-204
pages 195-204 views

Generation of hydrogen containing gas on board a vehicle

Kamenev V.F., Fomin V.M., Apelinskiy D.V., Khergeledgi M.V.

Abstract

The strategy of improving the environmental quality of engines using hydrogen synthesis gas as means of chemical activation of workflow is discussed in the paper. The technologies for generating synthesis gas aboard a vehicle are also considered. The authors present the description of the experimental onboard system for producing hydrogen synthesis gas by thermochemical conversion of gasoline. The article contains the materials of its testing on a real car.
Izvestiya MGTU MAMI. 2013;1(1):204-212
pages 204-212 views

Use of biofuel compositions as an alternative to improve environmental and energy safety in transport

Fomin V.M., Apelinskiy D.V., Khergeledgi M.V.

Abstract

The paper considers problems of energy supply and improving of environmental safety in transport, as well as one of the alternatives of their total solution based on the use of binary biohydrocarbon fuels. The authors considered basic physical and chemical properties of some fuel compositions and their impact on the performance of an engine. The results of testing of engines operating on two-component fuels are presented in the article.
Izvestiya MGTU MAMI. 2013;1(1):212-217
pages 212-217 views

Simulation of random microprofile of road surface by the method of shaping filter

Chabunin I.S.

Abstract

The article considers the simulation of random microprofile of road surface by the method of shaping filter. Differential equations of the shaping filter for different correlation functions are obtained.
Izvestiya MGTU MAMI. 2013;1(1):218-224
pages 218-224 views

Simulation of microprofile of road by wheel track

Chabunin I.S.

Abstract

The article considers the simulation of random microprofile of road surface on various wheel tracks with help of the method of shaping filter. Differential equations of the shaping filter for an exponential correlation function are obtained.
Izvestiya MGTU MAMI. 2013;1(1):225-229
pages 225-229 views

General propositions for the integration of power supply system in a multiplex communication system of a vehicle

Chernov A.E., Akimov A.V.

Abstract

The article describes the basic principles for integrating power supply system in a multiplex system of a vehicle. Currently, the stage of integrated systems with saturation function in every particular system transforms to the stage of the information technology with integration of different “intelligent” systems in the information environment of a vehicle. Combined sharing of information from sensors creates prerequisites to the distribution of intelligence in the various systems of electrical equipment, in other words, the ability of systems to make decisions on corresponding hierarchical level.
Izvestiya MGTU MAMI. 2013;1(1):230-232
pages 230-232 views

The use of combined power units in vehicles and environmental safety

Shabanov A.V., Lomakin V.V., Shabanov A.A., Salnikov V.I.

Abstract

This article presents the analysis of trends of development of modern automobiles which shows that the most promising direction in solving energy and environmental problems in transport is the use of combined power units.
Izvestiya MGTU MAMI. 2013;1(1):232-239
pages 232-239 views

Self-exciting oscillations in clutches of automobiles and tractors

Sharipov V.M., Marinkin A.P., Sharipova N.N., Schetinin Y.S., Klimova E.V., Tarasova L.I.

Abstract

The authors present the experimental results proving that in the real exploitation of a vehicle or a tractor self-exciting oscillations do not occur in friction pairs of friction clutch. This refers to friction clutches with asbestos, asbestos-free polymer and sintered powder friction pads.
Izvestiya MGTU MAMI. 2013;1(1):239-242
pages 239-242 views

Estimation of parameters of clutch slipping for their various installation in tractor gearboxes when shifting without torque interruption

Sharipov V.M., Dmitriev M.I., Zenin A.S., Kruglov S.M., Malanin I.A.

Abstract

The article describes the method of calculation of the work and time of clutch slipping during gear shifting without torque interruption for any variations in the relative position of friction-clutch coupling in a tractor gearbox.
Izvestiya MGTU MAMI. 2013;1(1):242-248
pages 242-248 views

Electro-hydraulic devices for control of transmission frictional mechanisms

Shipilevskiy G.B., Strokov A.M.

Abstract

Electrohydraulic devices are widely applied for control of transmission frictional mechanisms containing multi-plate wet clutches or brakes. Depending on function and conditions of engaging there are devices of relay or proportional operation. The last one use electromagnets of proportional action where attractive force between rotor and stator depends only on current magnitude in a winding. Such devices can be direct action devices or servo-action ones.
Izvestiya MGTU MAMI. 2013;1(1):248-253
pages 248-253 views

Structure and dynamic of control of tractor electric drive

Shipilevskiy G.B., Novikov G.V.

Abstract

The authors consider the characteristics of operation regimes and control of tractors with electric drives taking into account dynamic properties of controlled objects and requirements to its quality. Objects are the traction drive, including a turn of a tracked tractor, drives of PTO and hydraulic system pumps, and the “engine-generator” system.
Izvestiya MGTU MAMI. 2013;1(1):254-262
pages 254-262 views

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