Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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2201 kb

THEORETICAL JUSTIFICATION OF THE PARAMETERS OF A CYLINDRICAL PLOW FLOOR BOARD

abstract 1361802005 issue 136 pp. 55 – 70 28.02.2018 ru 51
The article considers the dependencies of the constructive parameters of the field board in the form of a cylindrical drum on the physical and mechanical properties of the soil. Expressions have been obtained for calculating the radius of the cylinder, as well as the size of the arm for installing the cylinder relative to the sock of the field board. The limits of the use of field boards data on the hulls of plows
217 kb

EXPERT METHOD OF FACTOR ANALYSIS OF OPERATIONAL RELIABILITY OF COMBINE HARVESTERS

abstract 1361802006 issue 136 pp. 71 – 86 28.02.2018 ru 61
The article reveals the main empirical factors that increase the efficiency of technological systems of grain harvesting. The work shows interrelation and subordination of empirical factors in the practice of operational reliability of grain harvesters, which underlies scientific research. We have defined the basic (key empirical factors) that allowed to develop a conceptual model (paradigm) research. The article reveals a technique, establishing the rules of application of the method of expert assessments to identify organizational and technical factors that have the most significant impact on improving the reliability of grain harvesters
294 kb

INFLUENCE OF THE TECHNOLOGY OF TILLAGE ON THE MOISTURE OF THE PRO-CESSED LAYER

abstract 1351801002 issue 135 pp. 50 – 57 31.01.2018 ru 75
Currently in the South of Russia, the most acute problem of accumulation and preservation of productive moisture in arable layer of soil. This fact has a decisive influence on the yield of agricultural crops. The need to study the dynamics of accumulation of moisture of the treated soil due to the fact that at the first stage of development plants are very sensitive to moisture content in the rooting zone of the soil. Practically the regulation of the moisture content of the processed layer may correct the influence of soil tillage aggregates with different types of working bodies. The work was performed in FSRI of the «ASC «Donskoy» (Zernograd, Rostov area), in the conditions of stationary experience (4,3 ha), 2013-2015, where explores various technologies of soil treatment, including no treatment. To obtain comparable results the same selected set (rotation) of crops (winter wheat, spring barley, pea, vapor). As a result of researches it is established that on steam background (76,1-46,2 mm) content of productive moisture is more than two times higher than on other backgrounds (of 30,6-46,2 mm). This allows us to talk about the effectiveness of the fallow field from the point of view of accumulation of moisture. The analysis of statistical data allows making a conclusion about the impact of crops on the dynamics of productive moisture. On the other hand, the rating statistics of the received data with backgrounds treated with different technologies did not allow to find significant advantages to any of them, as the area under the curve ROС analysis does not exceed the value of 0,6. Therefore, the studied backgrounds in the period of the research have equal influence on the moisture content of the treated soil layer
6624 kb

THEORETICAL FOUNDATIONS OF SYSTEMIC - COGNITIVE MODELING OF PROCESSES AND MACHINES IN AGRO-ENGINEERING SYSTEMS

abstract 1351801001 issue 135 pp. 1 – 49 31.01.2018 ru 62
Processes and machines of Agro-engineering systems with good reason can be considered as complex multiparameter natural and technical systems. In these systems there are numerous and diverse physical, chemical and biological processes. On the one hand, these processes have a significant impact on the performance of these systems. On the other hand, they are extremely difficult to describe in the form of meaningful analytical models based on equations. As a result, the development of meaningful analytical models is associated with a large number of simplifying assumptions that reduce the validity of these models. However, mathematical modeling of processes and machines of Agro-engineering systems is necessary for the development of both their designs and application technologies. Thus, there is a problem that is proposed to be solved with the use of phenomenological information and cognitive models. These models are based on the theory of information and describe the simulated system purely externally as a "black box", but it is meaningful. System-cognitive models can be built directly on the basis of empirical data using the intellectual system called "Eidos". This is done by model technology and methodology and is much less time-consuming and much faster than the development of meaningful analytical models. On the other hand, phenomenological system-cognitive models can be sufficient to determine rational design features and parameters of processes and machines of Agro-engineering systems. In addition, such phenomenological models can be considered as a first step in the development of meaningful analytical models. A numerical example is given
1932 kb

MECHANIZATION PRODUCTION PROCESSES STRATEGY OF HIGH QUALITY WHEAT GRAIN +)

abstract 1351801007 issue 135 pp. 80 – 91 31.01.2018 ru 89
The production system analysis of high-quality winter wheat grain was done and the problem solution methods based on mechanization production processes strategy through a new generation of equipment and innovative improvement of machine technologies were outlined. Deterioration of grain quality indicators in the country was marked: the proportion of strong wheat is not more than 0.5% of commodity grain resources, and about 80% of exportable parties is wheat of 4...5 classes. Thus, it is possible due to the process mechanization to raise the grain quality. A well-known method of functional-cost analysis was applied to ground machine technological operations, which are the first to be developed in order to improve the wheat quality in the entire technological system, the demand for which is reduced abroad. The basic technological principles of production of high-quality grain were designed. They have three subsystems: the structure of the wheat varieties for the agricultural producer, the previous crops for wheat, features of cultivation technology of valuable varieties on the basis of intelligent manufacturing systems machines. The mechanization of high quality grain production processes was proposed. It can provide engine technology improvement due to rational composition machine-tractor units of new generation. They allow abandoning the outdated usual items of machinery used in their system and dramatically raise labor productivity due to the combination of operations, quality of work, yield and reduce costs. The features of mechanization on harvesting and post-harvest grain refinement are reflected with the aim of improving its quality. Applied to various forms of management, intellectual grain sorting means of mechanization recommended, which contribute to an increase in wheat quality. The impact of "neveika" technology with the completion of a heap at the stationary place on the grain quality improvement was marked
196 kb

USE OF MECHANICAL CLEANING AND COLOR SORTING OF SEED GRAIN AND CORN COBS IN MODERN TECHNOLOGIES

abstract 1351801014 issue 135 pp. 158 – 168 31.01.2018 ru 82
Special aspects of grain heap and corn cobs trapping by modern mechanisms and plants with photoelements have been considered, also the main ways of their functional developing are disclosed
275 kb

ANALYSIS METHODS TO INCREASE THE CHARGING VOLTAGE OF THE ALTERNATOR

abstract 1351801015 issue 135 pp. 169 – 179 31.01.2018 ru 60
The article considers the problem of insufficient charging voltage during the joint operation of the battery and alternator. A comparative analysis of the proposed ways of increasing the charging voltage of the generator
398 kb

STUDY OF THE SHOCK PULSE IN EDGES OF THE PLANETARY DRUM OF A THRESHING DEVICE OF THE GRAIN MASS

abstract 1351801020 issue 135 pp. 188 – 199 31.01.2018 ru 52
One of the factors of the destruction of the bonds of grain with the hit when threshing the bread mass with a shock-vibrating threshing device is the impact of the roll edge on the bread mass. The very word "blow" without a clarifying supplement can have various meanings associated with various branches of science. Its meaning expresses the idea of a sudden fact; although in different branches of knowledge it is not identified. We have considered only certain aspects of the physical impact associated with the impact of the working organs of machines and the material being processed. The article presents a study of the impact pulse of a threshing device on bread mass. To reveal the essence of phenomena when a working organ is impacted by grain, a graph analytical method is used. Dependences allowing determining the impact pulse of the milk roll edge on the bread mass, geometric and kinematic parameters of the threshing device are obtained, and also can be used to determine the energy costs
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