05.00.00 Technical science
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STUDY OF POLYMERIC MATERIALS PERFORMANCE IN FRICTION CONDITIONS WITH ICE AND SNOW
DescriptionThe problem of identifying of the most promising polymer materials for sledge sliding application. The comparison of materials is given: the bench tests of polyethylene, fluoroplast, steel and ultra high molecular weight polyethylene (UHMWPE) with different molecular weight and their composites are carried out. On the basis of research of polymeric samples on ice and snow friction in exploiting condition with the use of specially designed sledges was shown that GUR 4150 UHMWPE has the lowest mass volume and linear wear. Also in article the results of research of ice adhesion to different materials are presented. Adhesion research was carried out in low temperature conditions of air from -21oC up to -46oC and in cryocamera according method which was patented by Institute of oil and gas problems of SB RAS. The research showed that GUR 4150 UHMWPE has the lowest adhesion to ice. On the basis of obtained data the authors assumed that GUR 4150 is the most perspective materials for development of sledge sliding exploiting in Arctic conditions.
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RESEARCH OF WORK OF THE DESIGN ELEMENTS OF A HYDROSEEDER FOR CROPS OF VEGETABLE CULTURES
DescriptionThe analysis, choice and justification of the device intended for management of a stream of working liquid at hydroseeding, and also the results of the laboratory researches of its uniform expiration are presented in this article
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THE WORKING PROCESS RESEARCH OF VACUUM INFRA-RED DRYING PLANT FOR BEE-BREAD
DescriptionIn the present article, a technique for studying the influence of the parameters of a drying plant on the optimization criteria is described. The design of a laboratory plant for drying bee-bread is presented. An adequate empirical dependence of the effect of the parameters of the process under study on the residual moisture of bee-bread is established. An optimal combination of factors has been revealed, which makes it possible to minimize the residual moisture of bee-bread
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STUDY OF WORKFLOWS WITH HYDRAULIC CUTTERS TO LOWER HARDWOOD STUMPS AT FOREST SITES
DescriptionIn the article, the dynamic characteristics of frictiondual-tillage of a wood soil-cultivating mill as object of automatic control are presented
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RESEARCH THE FILLING PILE’S SETTLEMENT IN CLAY SOILS DURING REPEATED STATIC LOADING
DescriptionThe object of the study is bored piles and their joint work with clay soils. The analysis of the field of static tests of bored piles, arranged by continuous flight auger technology (CFA), was carried out by repeated loading. Curve of settlement and the rate of its development from the applied force was obtained. Linear relationship reducing the amount of settlement in the second cycle from residual displacements after unloading pile on the first cycle was found. There was a relationship increment of settlements in the second cycle from the involvement of the bottom end in the work
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RESEARCH DEVELOPMENT OF SUBCUTANEOUS FAT OF CHILDREN AND TEENAGERS WITH A PATHOLOGY OF OBESITY
DescriptionThe article presents the analysis of the degree of development of the subcutaneous fat of children and adolescents with the metabolic syndrome and its classification
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RESEARCH OF ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE DISTRIBUTION IN POLYMERELASTOMER COMPOSITE
DescriptionThe research of distribution of polyethylene in production of composites on a basis of butadiene - nitrile rubber and ultra high molecular weight polyethylene is presented in this work. The raised content of polyethylene on the surfaces of samples and products that causes surface effect of modifying and improvement of agressiveproof property and wears resistance is established
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THE RESEARCH OF THE REAL SYSTEMS OF THE PROCESS OF CHOICE THE KNOWLEDGE FROM THE AREA OF KNOWLEDGE
DescriptionWe have done the research of the possible connections in the real system of the process of choice the knowledge from the area of knowledge. It has been identified dependence the number of the straight con-nections in this system from the number of elements in the system. For this it was used an example to solve a particular scientific problem - the choosing the required method of optimization from the variety of optimization methods. In the real system of the process of choice the knowledge from the area of knowledge have been identified and researched various connections – the straight and reverse connections, the connection of generation and structural connections, the functioning connections. It became evident, as these connections are formed from the straight and reverse connections in the real system. For some connections were obtained quantitative relationships
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THE STUDY OF SELF-BALANCED POTATO SORTING MACHINE WITH LINEAR INDUCTION DRIVE
DescriptionIn the article we have considered the self-balanced potato sorting machine differing from existing designs of self-balanced potato sorting machines with an oscillatory electric drive. That drive uses a linear induction motor. As the counterbalancing device, the method of the duplicating mechanism is applied. The duplicating mechanism is a specular reflection of the main working body, and also participates in technological process. Its application in the drive of machine allows not only to increase efficiency of cleaning, drying and sorting of potatoes, but also to increase reliability of sorting installation that corresponds to the newest tendencies of development of technology. We have brought the mathematical model of the offered electric drive of potato sorting machine, which is implemented in the environment of object and visual modeling of Matlab |Simulink|. The mathematical model allows investigating influence of parameters of the linear induction electric drive on parameters of oscillatory process of working body in dynamics. The developed technique of research and the created experimental potato sorting machine with the linear induction drive have confirmed theoretical researches. The main kinematic sizes of machine and technical parameters of individual nodes are determined. It is shown, that the efficiency of inertial transportation can be increased for 20% in comparison with the classical drive from the motor of rotation. Results of research will allow to realize energetically and technologically effective potato sorting machines with the linear induction drive
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THE STUDY OF THE PROPERTIES OF BEDDING MATERIAL FOR ANIMALS OF THE NORTH CAUCASUS REGION
DescriptionThis article presents the results of moisture-absorbing properties of the bedding material depending on the type, size and time of moisture absorption