Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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1437 kb

ADVANCED TECHNOLOGIES AND MEANS OF CULTIVATION

abstract 1501906002 issue 150 pp. 0 – 0 28.06.2019 ru 63
Due to the disconnectedness of production processes, prevention of soil degradation and plant diseases, as well as the difficult establishment of functional dependencies between the parameters of the working bodies and the physicomechanical properties of the soil, the richness of foreign technology, there is the problem of creating innovative structural and technological solutions for basic soil tillage including for the purpose of import substitution. To solve it, KubGAU has developed: “Multifunctional plow” (patent of the Russian Federation No. 2618342); “Plow with rotary bar” (utility model RF patent No. 184196); “Multifunctional plow with a rotary bruce” (positive decision on the patent application of the Russian Federation). Formal models, schemes and descriptions are given
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
549 kb

CALCULATION OF THE VOLUME OF DE-LIVERED BIRD DUNG UNDER FERTILIZER IRRIGATIONS OF TOMATOES IN THE FIRST ROTATION AND CUCUMBERS IN THE SE-COND ROTATION

abstract 1411807001 issue 141 pp. 1 – 18 28.09.2018 ru 208
We have made calculations using the values of dung delivered after the analysis of laboratory research of the soil and irrigation water delivered with organic fertilizers. Based on the data on values of hydraulic resistance coefficients of mixer elements, mixing chamber and diffuser, we found diameters of pressure pipelines, reduced head of NGPR mixer, velocity of flow discharge from mixing nozzles and the mixing chamber. According to the design data of the pump head values, those of the mixer head, the head on inlet into the mixer and head in a reservoir of constant pressure a possibility was received to specify values of factors under studies on location of irrigation system and to test the design data with the help of the experimental value received. A low head system with hydraulic and geometric parameters of mixing is recommended for small farms
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
699 kb

DEVICE FOR PRE-SAMPLE PROCESSING OF SOIL

abstract 1381804004 issue 138 pp. 18 – 36 30.04.2018 ru 147
The considerable share in prime cost of products of agricultural production is made, now, by power expenses. It promotes that the considerable attention is given power - both resource-saving to the equipment and technologies. Thus, the modern science is faced by a global task – creation of cars and tools of new generation, high-economic, highly productive, less power-intensive and metal-consuming. One of the most power-intensive processes of production of agricultural production is processing of the soil. In this article on the basis of numerous researches use of rotary motion of the soil-cultivating working body allowing to improve a design of tillage machines, to reduce metal consumption, power consumption, to increase quality of work is offered. In this article, we offer the device for preseeding processing of the soil on a frame of which the working bodies in the form of flat disks with sharpening working in the horizontal plane, but with the accounting of an angle of deepening of working body are in chessboard order established. Rotary motion which promotes fuller cutting of rhizomes of weed plants and to improvement of quality of preseeding processing of the soil is forcibly transferred to working bodies. Justification of the offered device, constructive and technological schemes of the tool, conclusions and offers are given in the article
193 kb

EFFECT OF INITIAL CONDITIONS ON TRANSFORMER TRANSIENT CURRENTS

abstract 1421808001 issue 142 pp. 1 – 17 31.10.2018 ru 267
The article dwells on the features of the transition process in the transformer windings under non-zero conditions typical for the modes of drying the trans-former with low frequency currents. The article also shows the effect of non-zero conditions on the cur-rents in the windings and the heating of the windings
832 kb

EFFECTIVE WAYS TO REDUCE SOIL COM-PACTION TO PRESERVE ITS FERTILITY

abstract 1461902003 issue 146 pp. 0 – 0 28.02.2019 ru 28
New ways of solving reducing soil compaction problem are substantiated. Soil compaction destroys its structure, violates its water-air regime, and leads to erosion and reduced yield. The effectiveness of the presented directions, based on the analysis of the issue and the results of own research is confirmed by practical use in the crop production processes mechanization of intellectual engineering authors' developments, based on their inventions and well-known serial technology selected from Automated reference system "agricultural machinery". It was the synthesis of own research results and modern agricultural machinery best samples analysis that allowed us to form an effective system of machines that reduce the harmful soil compaction. This ensures soil fertility preservation and crop yield increase. The set of machines proposed in the system for soil processing, sowing, fertilizing, spraying and harvesting not only reduces soil compaction but also improves work quality, labor productivity and complexity of the work performed, harvest and reduces costs of all types (energy, money, labor). The basis of the problem solution consists of a combination of technological operations for one pass of the unit across the field, multifunctional units application in the system that performs tillage and seeding, fertilization and tillage, additional fertilizing of spike crops with simultaneous harrowing, harvesting with simultaneous stubbling or straw pressing etc., refusal to use heavy machinery in the fields, trucks, conversion tracked system on tractors, front and rear hydraulics for making multi-functional units, the use of fundamentally new machines and adaptations to them according to the inventions of the authors
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
215 kb

EXPERT METHOD OF FACTOR ANALYSIS OF OPERATIONAL RELIABILITY OF COMBINE HARVESTERS

abstract 1391805001 issue 139 pp. 1 – 16 31.05.2018 ru 184
The article reveals the main empirical factors that increase the efficiency of technological systems of grain harvesting. The article 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 developing a conceptual model (paradigm) of the research. The article provides 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
213 kb

FEATURES OF TECHNICAL RISK ASSESSMENT UNDER NON-DETERMINISTIC STOCHASTIC PARAMETERS

abstract 1461902002 issue 146 pp. 0 – 0 28.02.2019 ru 19
The article considers a variant of parametric representation of a complex product of single use in the process of its creation during tests, when structural failures of the product or its components in one or more parameters specified in the technical specification require modifications leading to a change in the general amount and repeating of the tests, but it is possible to reduce the volume of tests by taking into account a priori information. This is especially up-to-date while ensuring the reliability of complex single – use products, the components of which are first stages of ground tests, and only then as part of complex products-the stages of flight tests. Structural failure of any component of such a product at the stage of ground tests does not lead to such consequences as if it occurred during flight tests as part of the product. Meanwhile, the refinement of the component element of a single-use product, the structural failure of which occurred at the stage of flight tests as part of the product, and the assessment of its effectiveness, can be carried out at the stage of ground tests, in the case of consideration of a complex product in parametric form. This can significantly reduce the cost of flight testing of a complex product, in the case of effective completion of the component element of the product at the stage of ground tests, without a significant (temporary) decrease in the overall reliability of a complex single-use product
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