Vol 76, No 12 (2009)
- Year: 2009
- Articles: 21
- URL: https://bakhtiniada.ru/0321-4443/issue/view/3776
Articles
An analysis of market segment of wheeled 0,6 class tractors
Abstract
Технологическая потребность АПК Российской Федерации в с.-х. колесных тракторах кл. 0,6 составляет 44,9 тыс. эт. ед., однако существующий платежеспособный спрос на рынке не обеспечивает не только увеличения парка, но и обновления уже существующего.
Traktory i sel hozmashiny. 2009;76(12):3-4
3-4
4-6
Combined unit for once-over tillage
Traktory i sel hozmashiny. 2009;76(12):52-
52-
Registration of seeds going out from seed distributor of precision seed drill
Abstract
For the registering of sown seeds by the sowing apparatuses of precise sowing it is suggested to use a pneumatic device with a piezocrystal quartz sensor, which ensures registration, formation and processing of electrical signals, caused by the shock of seeds against the receiving area with the quartz sensor.
Traktory i sel hozmashiny. 2009;76(12):7-11
7-11
Potato loader
Abstract
The design and principle of work of two-phase feeder for the loader of continuous action for loading potatoes are brought. Optimum values regime and design data of working organs of a feeder and their influence on the twisting moment and drive capacity are installed. The analysis of two-phase feeder work is presented at a variation of levels of each pair of researched factors.
Traktory i sel hozmashiny. 2009;76(12):11-13
11-13
Runner of the centripetal fan
Abstract
Given clause is devoted to the problem of profitability, reduction of the cost price of processing, dimensions, metal consumption and increase of productivity of centre swift fans. In work the design of the essentially new and economic centripetal fan is presented.
Traktory i sel hozmashiny. 2009;76(12):13-14
13-14
Mathematic model of interaction of the wheeled skidding portage system with account for nonholonomic constraints
Abstract
Is developed procedure and mathematical model of the estimation of interaction of wheel logging tractor with the bundle of wood by dragging taking into account nonholonomic constraints at the contact points of tires and crown of the skidding bundle of wood with the bearing surface, that make it possible to reveal the important special features of dynamic processes proceeding in this case and to reduce the degree of the divergence of the results of theoretical and experimental studies.
Traktory i sel hozmashiny. 2009;76(12):14-19
14-19
20-22
Mathematic simulation and calculation of soil compaction by the work of wheeled tractor and after its stop
Abstract
The modification of the stressedly-deformed state and the density of viscoelastic sandy-loam soil as a result of the sequential passages of the wheel tractor with the different speeds on the soil were investigated. Viscoelastic properties of the soil are described with the first order differential equation connecting the compressive stress, the speed of the change of the compressing stress and relative deformation of the compression in the vertical direction. A method of calculation of the deforming indices and the compacting of the soil because of the creep after tractor has stopped was offered. In the computing experiments, the calculated data which characterize the influence of the row of factors on the viscoelastic properties of the soil and the compressing action of the tractor on the soil was obtained.
Traktory i sel hozmashiny. 2009;76(12):22-27
22-27
To derivation of equations of thermodynamic and indicator efficiency for ДВС (internal combustion engine)
Abstract
Предложен метод вывода термодинамических уравнений и уравнения индикаторного КПД для ДВС. В качестве исходного принимается уравнение теплового баланса. Представленные в таблицах данные свидетельствуют о наглядности и нетрудоемкости вывода уравнений.
Traktory i sel hozmashiny. 2009;76(12):28-29
28-29
29-31
31-35
Mathematic simulation of separating potato tubers on the roll-and-disk surface
Abstract
The paper presents a mathematical method for calculation of the optimal slope of the directing disk to the rotation axis of roller-and-disk sorting tool. Analysis of the obtained results shows that the choice of rational parameters and operation modes of the above tool improves the grading accuracy and lowers the tuber damage thus raising efficiency of potato grading machines.
Traktory i sel hozmashiny. 2009;76(12):36-37
36-37
Simulation of grain destruction process with the use of computer
Abstract
The article aims at examining the grain destruction process. This process is widely used in manufacture of mixed fodders. Current methods are not optimal, as they take into account separate aspects of the process. Also there is no specialized software for modeling. The article presents a computer program in Delphi, which allows to model the grain destruction process and to explain the functional relations between its parameters. This program will be most useful for determination of boundary values of researched parameters.
Traktory i sel hozmashiny. 2009;76(12):38-39
38-39
40-42
About the frictional oscillations
Abstract
Frictional oscillations fundamentals of machine and mechanism friction units are examined, taking into account their harmonic and relaxation character, roughness surface parameters, adhesion strength properties and sliding speed. The estimated value of frictional oscillations parameters applying to friction units is given.
Traktory i sel hozmashiny. 2009;76(12):42-44
42-44
Motorless thermal stand for studying cyclic strength of pistons
Abstract
Results of work on creation of the motorless thermal stand, which allows to determine experimentally the thermal stability of pistons at a cyclic transient thermal load, are stated. The way of installation of thermocouples and the results of temperature measurement of the piston at the created stand are described.
Traktory i sel hozmashiny. 2009;76(12):44-46
44-46
One-channel stand for testing ТНВД (high-pressure fuel pump) of modern diesels
Abstract
The scientific researches were carried by testing modern fuel system on one-channel bench. Influence of the bench characteristics on the fuel-handling and structure for testing of quality functioning actuators was described in this article.
Traktory i sel hozmashiny. 2009;76(12):46-48
46-48
Improving technology of defecation residues application by the use of cyclic action loaders
Abstract
Due to absence of continuous action loaders on farms of МПК-Ф-1 type, widely used cycle action loaders are offered to apply defecation residues. To increase efficiency of these loaders the scheme of working process in the field is improved. A new method of technology elements rational parameters calculation is given.
Traktory i sel hozmashiny. 2009;76(12):49-50
49-50
50-52
List of articles published in our journal in 2009
Traktory i sel hozmashiny. 2009;76(12):53-56
53-56