Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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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 88
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 59
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
331 kb

PARAMETERS OF CORN PREPARATION VALVE MILT

abstract 1361802001 issue 136 pp. 1 – 14 28.02.2018 ru 68
The purpose of this study is to determine the basic geometric parameters and the kinematic mode of operation of a roll mill intended for threshing corn cobs at the selection stage. Currently, for the threshing of the corn cobs on seeds at the selection stage, disk threshers of the type MKD-M are used in most cases. These devices practically do not injure the seeds, but it can reach 7-8%. In this case, the cob should be re-threshed, which significantly reduces productivity. One of the promising ways to increase the productivity of threshing corn cobs at the selection stage, while maintaining the minimum level of seed crushing, is the use of roller threshing devices. But there are no commercially available corn roller grinders to date. There are only prototypes. One of the most important requirements for corn threshers is the complete exclusion of seed mixing during the change of the treated cobs. Taking into account that the nomenclature of processed breeding numbers can include hundreds of titles, self-cleaning of working organs is extremely necessary to reduce manual labor costs. We have developed an experimental sample of a roller thresher with two horizontally arranged working elements, which showed a high quality of cob threshing in the course of prospecting studies. In the proposed design of the thresher, the problem of self-cleaning of working organs is absent. To determine the basic parameters of the roll mill, which ensures high quality of the cob threshing, we have conducted a full-factor experiment. The following factors were used as controlled factors: diameter of working elements (rolls) and rotation speed of their rotation. The remaining parameters of the grind were justified on the basis of our previous studies of the operation of corn threshers of various types. The criterion of optimization was the crushing of grain, and the quality of the restriction was used such an indicator as a grain of grain. The material for research was the cobs of the Krasnodar hybrid 425 MV. As a result of the studies, the following optimal parameters of the corn selection thresher were established: roll diameter - 152 mm; rotational speed of rollers - 767 min-1; the minimum clearance between rollers is 6 mm: the height of the protrusion of the working surface of the threshing roll is 10 mm
732 kb

COMPARATIVE ANALYSIS OF MAIN CONSTRUCTIVE CHARACTERISTICS OF SULFITATION APPARATUS OPERATED AT RUSSIAN SUGAR BEET FACTORIES

abstract 1361802002 issue 136 pp. 15 – 21 28.02.2018 ru 75
Sulphitation of semiproducts of sugar production has a significant influence on the course of processes in the refining of both sugar beet and cane sugar. The insufficient degree of adsorption of sulfurous anhydride has a negative impact on the environment as well as on the technical staff, if it gets into production premises, caused not so much by contingencies, but by shortcomings in the equipment used. In the article, we describe the main types of constructions of sulphitation devices used in the sugar industry, their drafts are shown, their advantages and disadvantages are considered
189 kb

USE OF RADIOACTIVE AGROBIOTECHNOLOGIES IN STORING AND PROCESSING OF PLANT MATERIALS

abstract 1361802003 issue 136 pp. 22 – 35 28.02.2018 ru 97
The article analyzes the patented in different countries methods of using of the ionizing radiation in processes of storing and processing of plant materials. Description of nature of the radioactive treatment and the ionizing radiation is given; examples of possible sources of the ionizing radiation are listed. Advantages and disadvantages of the radioactive treatment are shown. The patent search in databases of the WIPO was carried out. Patents, registered in countries like Korea, China, Japan, etc., were analyzed. Methods, realization of which allows sterilizing of material and increasing its storing period, and also improving its processing, were systematized. The carried out survey of the patent documentation revealed, that at the present time there is quite a number of methods of using of the ionizing radiation in storing and processing of plant materials, which can be explained by the fact, that irradiation allows to solve quite effectively a number of important tasks, such as sterilizing the material and modifying chemical substances in its content. In the article it is also shown, that, nevertheless, issues of safety and quality of irradiated products have not yet been fully resolved. In the end, the conclusion was made about the relevance of further research in this field
1456 kb

OPTIMIZATION OF THE GEOMETRICAL SIZES AND KINEMATIC CHARACTERISTICS OF A SCREW CUTTING DEVICE

abstract 1361802004 issue 136 pp. 36 – 54 28.02.2018 ru 67
The article presents the results of optimization of the angle of inclination and pitch of the cutting segment, the frequency of rotation of the screw when cutting stems of crops of different biometric characteristics of the proposed screw cutting device
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