Kuban State Technological University
Author list of organization
List of articles written by the authors of the organization
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Description
In the article we have shown how to synthesize an automatic position control of the executive body of an electric drive with speeddependent moment of resistance
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Description
In recent years, Russia has paid great attention to the theoretical and practical aspects of conservation. Since electric drives consume about 70% of electrici-ty generated, the most substantial savings achieved by using variable speed drives AC and DC. In this article, for the positional DC drive with speed-dependent resistance torque we have developed three energy-saving diagrams for large movements: with a speed limit of the drive; restricted maximum current anchor chain and speed electric motor; restricted maximum and minimum values of the current anchor chain of the motor and the speed of the drive. We have developed software to determine the parameters of energy saving diagrams for large movements of the executive body of the electric DC depending on the speed torque resistance. For the considered energy saving diagrams, which provide large movement of the executive body of the electric DC, depending on the speed of the moment of resistance, it is necessary to provide the following condition – the maximum speed of the executive body of the drive must be equal to the maximum allowable speed value. We have also defined analytical dependences, allowing calculating the consumption of the electric power drive by moving its executive body, in accordance with the proposed diagrams. Realization of the developed positional control DC motor with speed-dependent torque resistance will lead to energy savings
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DETERMINATION OF INVESTMENT APPEAL OF INDUSTRIAL ORGANIZATIONS FOR GOOD GOVERNANCE
DescriptionRussian industry is almost completely exhausted the potential for extensive growth model. Due to this background, the increasing the importance of improving the efficiency of the companies in the industry, which by definition involves the need to increase investment activity in the industrial business becomes very important. The problem arises due to identifying the elements of investment attractiveness for further exposure to the companies in the sector and attracting investment capital. This article is devoted directly to the issues of determining factors of investment attractiveness of an industrial company. The emphasis in the article has been made on the allocation of domestic and foreign investment attractiveness, each of which is formed by a number of aspects. Also, it has identified and characterized the key elements that make up the internal and external investment attractiveness. Thus, the investment attractiveness of the internal environment of an industrial company is represented as a top-management, quality of personnel, quality of business processes, the quality of sales and quality of the financial system. Investment attractiveness of the environment can be formed by conjuncture target markets, the availability of capital, public policy, competition, barriers to entry, innovative pressure locally limited preferential treatment. The article also gives a brief description of how each of the elements mentioned above influence the integrated investment attractiveness
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Description
Based on the analysis of the phase composition, the average grain size measured by high resolution electron microscopy and multifractal parameterization structure shows the relationship of coating properties with their structural-phase state. The regularities of the evolution of the structural parameters and multifractal characteristics of the surface layers of materials with shape memory can predict the properties of the composition of the "steel-coating". On the basis of experimental studies, it has been shown that mechanical activation of powders of materials with shape memory effect based on TiNiTa makes it possible to create an effective technology training sprayed material which will generate nano-structured surface layers by high-speed flame spraying. The influence of the mechanical activation of TiNiTa powder on the quality of surface layers formed by high-speed flame spraying was investigated, and a significant improvement in the structure of the surface layer was found, with reduced porosity, high adhesion, and, consequently, increased functionality and mechanical properties. The evolution of the structure at all stages of surface modification based on the fractal approach multifractal parameterization method, which is based on qualitative analysis and instrumental methods in addition to classic microstructure parameters like grain size and specific area related to the physical and mechanical properties, is quantitative information. It was established experimentally that after high-speed flame spraying, the performance characteristics of mechanically activated shape memory TiNiTa powder improved: cyclic durability under high-cycle fatigue increased by about 35.6%, and the wear resistance increased by 3.6 times
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Description
A thermal physical and mathematical model of laser cladding with TiNi on steel was developed which allows us to monitor the formation of the structure and the properties of the surface layer. A description of the model included assumptions and simplifications; analysis of the energy balance; numerical modeling of thermal processes; evaluation of the temperature distribution; experimental verification of the obtained solutions. The composition of the steel and TiNi alloy was examined as a two-layer material with different thermal characteristics. The energy balance of the system was described with a heat equation in a three-dimensional form. The main channels of the radiation energy costs were taken into account: absorption surface of the product, loss owed to the reflection surface, energy absorbed by the coating which did not come down to the base material. To solve the differential equation of heat conduction we used the Fourier integral method. In assessing the temperature distribution we have reviewed a dimensional problem when exposed to a point source of the Gaussian distribution in a pulsed mode. Computer calculations used MathCAD graphs of temperature changes at different depths of the TiNi layer and the steel substrate. The results obtained allowed us to develop the recommendations for optimizing the technological parameters of laser cladding of TiNi. The simulation of thermal processes significantly reduces the time and resources required to develop the technology, allowing prediction of the quality of the surface layer during the development of the technology and promoting the adoption of efficient technical and technological solutions
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CRISES IN THE EVOLUTION OF ECONOMIC SYSTEMS OF INHOMOGENEOUS
DescriptionRealities of today have defined a new stage of development which can be characterized as the entry of world economic system in a condition of crisis. Recognizing that development of economic systems means continuous violation of macroeconomic balance - a necessary condition of development. In this context transition processes are considered as a natural, state of society and economy in the course of its evolution. Characteristic feature of a market economy is recurrence of economic development. Recurrence is a form of development of economy as whole, the movement from one macroeconomic balance to another. Recurrence can be as one of ways of self-regulation of market economy. As line of recurrence is the movement not around, and on a spiral, it likes a form of progressive development. The main phase of a business cycle is crisis during which the broken proportions of a social production are restored. For crisis the following signs are characteristic: growth of mass of unrealized production; increase of loan percent; decrease in the share price, etc. All this is of the capital and control of business activity that leads to falling of profit, crisis of non-payments, and is frequent also to bankruptcy. The article is devoted to research of specific non-uniform economic systems, identification of the factors of heterogeneity promoting development of crises of heterogeneity
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ANALYSIS OF IMPACT RESISTANCE OF CHAIN ACCORDING TO SPROCKET LUG PROFILE
DescriptionThe possibility of using involute sprockets, more technologically advanced in manufacturing, compared with sprockets with straight, convex-concave profile of the lug on the criterion shock resistance circuit, the maximum permissible speed of the drive sprocket for bush roller chain drives and gears with a toothed chain. The comparative analysis of researches of operation of roller and tooth chain gearings with various steps and types of profiles of sprockets showed that in all cases with increase in a step of a chain the coefficient of speed of blow increases, and the increase in number of lugs at sprockets reduces the speed of blow of the hinge about sprockets tooth. Value of coefficient of speed of blow for couple an evolvent sprockets - a gear chain is much less than value of coefficient of speed of blow for couple a plug-roller chain –sprockets of any profile. Less noise during the work of tooth chain gearings is due to evolvent sprockets. As a result of researches it is established that on kinetic energy of impact of sprockets and the hinge of a chain, sprockets with an evolvent profile can be applied on an equal basis with the sprockets having concave-convex or rectilinear profiles of lugs. Respectively, evolvent sprockets can be used both in chain transfers with roller and with gear chains
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Description
Innovative tools of intercompany and strategic planning are designed to form interconnected tasks structural units of industrial enterprises and complexes in the sought after amount based on the cost of production of interdependent. Intercompany planning has no tools based on chain planning with cyclic calculations. Allocation of factors affecting business performance is a mandatory procedure in the development of innovative tools and intercompany strategic planning in industrial plants and complexes. Factors determining the efficiency of intercompany and strategic planning at industrial enterprises and complexes require detailed classification. The article examines the factors that determine the effectiveness of intercompany and strategic planning. The classification of factors, that are offered, which can form a conceptual framework of business development strategy for a long period of time, based on the use of interrelated production plans for the following criteria: conceptual, stabilization and functional. The developed classification of factors, which determines the efficiency of intercompany and strategic planning, allows us to: generate the concept of strategic business development; establish the optimum parameters of the structure and volume of internal and external supply, to determine the required size of lending and investment; achieve stabilization of interests of the economy and the level of investment attractiveness of the business, etc. Based on it, becomes possible to develop a methodology and logical approach to the formation of innovative tools intercompany and strategic planning at industrial enterprises (complexes)
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Description
In Russia, as well as in foreign practice, classic yogurts are more required. Depending on the value of imported dry starters, the proposed technology allowing reduction in their quantities in yogurt technology is very crucial. It will affect the cost of the finished products. In yogurt technology, the possibility of using physical techniques, with the purpose of intensifying the process of producing yogurt, is very little reflected. Pre-activation of the leaven by electromagnetic field – lower frequency before fermenting in the production of yogurt is one of the technological tricks that speed up the fermenting process and reduce the quantity of starters. The advantage of the proposed technology is its ease of implementation, not requiring additional cost of electricity and also enhanced maximum reduction of additional chemicals which are used as raw materials to create a special environment for the growth of microorganisms belonging to the leaven. In this work, the overview of the existing principles for accelerating the fermentation process of milk is given. In this work, the research results of accelerating technology of fermenting milk for yogurt are presented. Mathematical process of experimental data enables the optimization, fermentation process using leaven FD-DVS YF-L812 10Yo-Flex. The optimal temperature and duration for the maximum acceleration of the process of obtaining yogurt at a given frequency of electromagnetic field are identified. We have given organoleptic characteristics of yoghurt prepared using the activated ferment
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THE FEATURES OF TRAINING WITH ADVANCED STUDY OF FOREIGN LANGUAGES FOR INDUSTRIAL JOINT COMPANIES
DescriptionThis article deals with the problems of system development of professional education and enhanced training in foreign languages for the Russian-German (Swiss, French) joint venture companies. We have shown new perspectives and possibilities improving work efficiency in staff training in relation with the new Russian Federation Federal Law of Education, creation basic universities departments in enterprises, ligitation new network forms for the implementation of network programs. We have also presented some measures to improve the quality of education, to attract highly qualified specialists of enterprises, the use of their scientific and technical base, ties companies with leading foreign organizations, the use of new educational technologies, assessment of professional competence of students in educational programs. At present the main role is played by foreign language, possession of which at this stage is an essential attribute of a successful specialist. The article has an analysis of existing methods and training courses in foreign languages and proposes a system of training of foreign language on the basis of educational industrial cluster which allows using not only the faculty of universities and training facilities, but the full potential of joint ventures, including foreign training. The proposed system involves learning a foreign language training in the following courses: general business, specialized business, intensive English, business training and other. The substantive content of special courses focused on professional activities with the use of interactive teaching methods, such as role-playing, methods for solving situational problems, methods of design activity that contributes to the development of skills to analyze, compare facts and events, to learn independently, to work in teams, to express and defend their point of view