Vol 9, No 1-1 (2015)


Transport bioenergetics

Apelinsky D.V.


The article discusses the problem of finding alternative energy supply for the transport. The paper substantiates the ecological and economic feasibility of transfer of vehicles power plants to be powered by biomass made fuel. Experimental studies were conducted for methods of rational use of some biological energy carriers as partial substitutes for petroleum-based fuels.
Izvestiya MGTU MAMI. 2015;9(1-1):5-14
pages 5-14 views

Estimation of traction and dynamic properties of an 8×8 car with individual wheel drives on a chassis dynamometer

Kotiev G.O., Gorelov V.A., Zakharov A.Y.


The paper presents a new principle or real load condition simulation during vehicle testing on a chassis dynamometer. The authors developed a mathematical model of an 8 × 8 car dynamics on the stand and on the road. The results of modeling simulation proved the efficiency of the proposed approach to stand management on the example of an 8 × 8 car with individual wheel drive. The article also grounds the directions for further research, based on the present principles.
Izvestiya MGTU MAMI. 2015;9(1-1):14-25
pages 14-25 views

Simulation of gear change in transmissions of agricultural tractors

Gorodetskiy K.I., Shuvaev D.N., Alendeev E.M., Muratova S.K., Melnikov A.Y.


The paper deals with the gearshift modeling process in transmissions of agricultural tractors and the method of sectionally continuously variation of tractor speed, based on the rational choice of using only a small range of adjustment characteristics of the engine where the power does not drop below minimal and fuel economy is maintained.
Izvestiya MGTU MAMI. 2015;9(1-1):25-31
pages 25-31 views

Investigation of effect of cyclic fuel delivery on start mode of small-sized diesel engine CH8,5 / 11

Dadilov A.S.


The article considers the possibility of improving starting characteristics of small-size diesel engine type CH8,5/11 by replacing vortex combustion chamber by piston combustion chamber. The authors present the formulas for determination of optimum amount of cycle fuel supply in diesel engine start mode, fuel vaporization in start mode in volume and from the wall of a cylindrical combustion chamber. Results of experimental studies show the influence of cycle fuel supply on duration of small-sized diesel start-up.
Izvestiya MGTU MAMI. 2015;9(1-1):32-39
pages 32-39 views

Efficiency of a hybrid power plant at emergency braking

Dementyev Y.V., Krutashov A.V., Deev O.I.


The article describes the efficiency of the hybrid power plant with function of asymmetric changing of power flow when braking on surfaces with different friction coefficient.
Izvestiya MGTU MAMI. 2015;9(1-1):39-43
pages 39-43 views

Determination of fuel consumption of light commercial truck on a given route

Kravets V.N., Musarsky R.A., Moshkov P.C., Toropov E.I.


The article presents the results of calculation and experimental determination of fuel consumption of a light commercial truck on a country road route.
Izvestiya MGTU MAMI. 2015;9(1-1):43-48
pages 43-48 views

Pneumohydraulic suspension of high-speed tracked vehicles

Krumboldt L.N., Golovashkin F.P.


The article describes the design features of pneumohydraulic suspensions of high-speed tracked vehicles, as well as their calibration and design calculations.
Izvestiya MGTU MAMI. 2015;9(1-1):49-57
pages 49-57 views

Optimal design of cable subway lines in a highly urbanized city environment

Lagerev A.V., Lagerev I.A.


The paper formulated and solved the problem of conventional nonlinear technical and economic optimization of placement and height of intermediate support structures for design of cable subway lines in highly urbanized city environment.
Izvestiya MGTU MAMI. 2015;9(1-1):57-65
pages 57-65 views

Bending torsion in the V-belt drives

Martynov V.K.


The paper deals with the possible appearance of bending torsion of belt in of belt transmissions, especially for wide variable with corrugations. For similar V-belts loading in transmission - as flexible rods of open profile - imposes its own specificity in considering of new torque to the defined in the existing theory based on the hypothesis of plane sections. Results increase opportunities for description of the processes in transmission, giving them proper assessment.
Izvestiya MGTU MAMI. 2015;9(1-1):65-71
pages 65-71 views

Irrigated nozzles for air treatment in cabins of tractors and agricultural machinery

Mikhailov V.A., Sharipova N.N.


The article describes the design of regular structure flat-slit irrigated nozzles of porous plastic plates with hills with various nature of airflow in their channels. It is shown that the intensification of heat and mass transfer (turbulence due to the artificial movement of air in the channels) provides a significant reduction in the size of the nozzle when the desired effectiveness of lowering the temperature of the processed air and acceptable aerodynamic drag.
Izvestiya MGTU MAMI. 2015;9(1-1):71-77
pages 71-77 views

Research of supporting off-road ability with front and rear wheels track mismatch

Ostretsov A.V., Sharipov V.M., Bernatsky V.V., Esakov A.E., Mordasov A.S.


The results of studies of the influence of mismatch of front and rear wheels tracks of 4x2 and 4x4 vehicles on their supporting off-road ability. Evaluation of off-road ability was carried out using the results of experimental studies of cars, as well as the calculation method using a mathematical model of a car on deformable support surface. Value of mismatch is characterized by a coefficient of track mismatch.
Izvestiya MGTU MAMI. 2015;9(1-1):78-83
pages 78-83 views

Formation of control logic of electric drive transistor inverter

Prokhorov V.A.


The article deals with the creation of optimal control logic for semiconductor switches transistor inverter for induction motor frequency control in order to eliminate through current in inverter racks. The author gives a particular version of the circuit to solve this problem.
Izvestiya MGTU MAMI. 2015;9(1-1):83-86
pages 83-86 views

The amplitude-frequency characteristics and transfer functions of electromechanical wheel drive mover of rolling type

Sergeev A.I.


The article discusses relation of amplitude-frequency characteristics and transfer functions of electromechanical drive of rolling type wheeled mover. The paper defined overall transfer function considering impact of the phenomenon of formation of the contact surface and transfer functions under the perturbation and stress management. This allows the simulation and identifies energy efficiency as well as the parameters and characteristics of the onboard information-measuring system at the design stage.
Izvestiya MGTU MAMI. 2015;9(1-1):86-90
pages 86-90 views

Velocity influence of the input block device action on the processes in the actuator pneumocylinder

Alekseev D.P., Chulyunin A.Y., Sheypak A.A.


The investigation of the gas-dynamic processes in a pneumocylinder with two-way action on the base of the computational fluid dynamics methods are carried out in this work. To describe gas movement three-dimensional Navier-Stokes equations averaged according to Reynolds are used. A shock-wave structure in piston cavity of the pneumocylinder is studied. The estimation of the velocity influence of the pressure increase on the shock-block structure of the flow and pneumocylinder characteristics is carried out.
Izvestiya MGTU MAMI. 2015;9(1-1):90-94
pages 90-94 views

Performance test of electric starter systems with capacitive energy storage in cars

Shmatkov Y.M., Klimov D.S.


The article deals with the results of experimental studies of electric starter with batteries and capacitive energy storage. Estimation of efficiency of electric starter by using energy storage at low temperatures is conducted.
Izvestiya MGTU MAMI. 2015;9(1-1):94-98
pages 94-98 views

Situational analysis of hydraulic control systems by stationary and mobile objects

Shumilov I.S.


The article describes the design requirements for the design of the hydraulic control system of stationary and mobile objects, the basic design requirements for hydraulic stationary and mobile objects, ensuring the reliability of the hydraulic control system of stationary and mobile objects.
Izvestiya MGTU MAMI. 2015;9(1-1):98-112
pages 98-112 views

System messages and non-system evaluating drivability

Katanaev N.T., Lepeshkin A.V.


Оn the issue of Work associated with the concepts of controllability and observability wheeled and tracked vehicles. Based on the analysis of algorithmic schemes of man-machine system "car driver"-Wednesday-considers the direct evaluation of dynamic properties of an object, as well as the integral evaluation of manageability that are systemic in nature.
Izvestiya MGTU MAMI. 2015;9(1-1):112-116
pages 112-116 views

Layout solutions and transmission failures of off-road vehicles with low pressure tires

Lyachenko M.V., Shekhovtsov V.V., Migunov A.I., Chebanenko A.P.


The article analyzes the layout solutions for transmissions vehicles on low pressure tires. It is shown that in most cases their transmissions are assembled from finished units of vehicles in production in Russia. Thus wheel drive becomes complicated, transmission components’ life time decreases and typical operational failures appear. The paper presents statistical data on failures of TREKOL-39041 vehicles operated in the Volgograd region, as well as the listed shortcomings of the existing method of calculation of ratios of transmissions.
Izvestiya MGTU MAMI. 2015;9(1-1):116-123
pages 116-123 views

Six generations of ploughing tractors from STZ-1 to AGROMASH-150TG. 85 years of Volgograd Tractor Plant

Kosenko V.V.


The article is devoted to the 85th anniversary of the first domestic tractor of Stalingrad (now Volgograd) Tractor Plant. There are shown the stages of development and improvement of its products - agricultural utility tractors.
Izvestiya MGTU MAMI. 2015;9(1-1):123-129
pages 123-129 views

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