Purpose of the development: Разработка физико-химических моделей разрушения, статистических, критериальных уравнений износостойкости, которые одновременно учитывают среды (кислое, щелочное или нейтральное), его коррозийные свойства и интенсивность нагрузки фрикционного контакта при трении, энергию взаимодействия среды с поверхностью при кавитации; Обеспечение надежности и длительного срока эксплуатации контактных соединений деталей в условиях вибрации. Определение потенциально опасных резонансных режимов работы механических узлов. Создание новых методов и технологий повышения вибрационной стойкости механических контактов; Разработка эффективных методов ускоренных испытаний износостойкости контактных поверхностей деталей машин на основе решения зносоконтактних задач для количественной оценки эффективности технологий укрепления, повышения износостойкости и условий смазки.

Recommended application field: The results can be used in machine building, instrument-making to ensure reliability, long service life of mechanical components, machine parts and structures that operate in a vibration in the design of precision instruments in the systems of precision mechanics and automatic control - solutions for precision positioning of elements of these systems in the presence of background vibration.

Technical characteristic: A detailed systematization of contact mechanics problems and methods of their solutions as without drift, and with regard to the demolition. The technology of increasing vibration resistance and damping ability of the contact surfaces on the basis of surface irradiation by nanosecond pulses of Nd: YAG laser with an optical power density of -10 - 10 W/m2. Sound criteria and the basic equations of destruction surfaces at microshock load. The new technology of chemical and thermal processing of metals.

Advantages over analogues: In the course of the project is planned to obtain new scientific and practical results, namely, to obtain new data on the impact of KASS for wear process and the destruction of working surfaces, which will provide an opportunity on the basis of the provisions of the physico-chemical mechanics of materials to develop a science-based framework for analyzing and studying the processes CMH materials; based on the structure of the energy theory of wear, the hydrodynamic theory of shock waves and the equations of non-homogeneous continua in the elastic plastic field for the criteria and the basic equations kavіtatsіyno erozіynoї-wear materials, develop methodology for determining the corrosive factor in CMH metals by computer processing of the polarization curves resulting obtain analytical dependencies and relationships between corrosive and mechanical factors of destruction, which, in turn, will make it possible to develop methods for assessing prediction of durability of equipment parts, to establish the relationship between the composition, structure, reinforced layer parameters of the crystal structure and durability of hardened parts as they CMH; standpoint of the theory of dislocations invited to consider the cyclical nature of energy intensity of the surface layers of metals and their wear resistance at CMH in hostile environments, based on the previous intensification of metal surfaces is necessary to develop new methods and technologies CTO. Materials for the research to prepare for the Ph.D. defense.

The development stage readiness: tested in laboratory condition

Technical and economic effect: We obtain statistical data on the reliability and durability of the components used in their wear at the cash register allows the food industry, in particular, to carry out a comprehensive study of wear parts of centrifugal pumps. The ways and methods of rapid determination of wear resistance of materials at CMH, and valuation methodologies for durability polimerkompozitsiynih protection, thermal diffusion and reinforced coatings allow science-based approach to the selection of restorative techniques, new methods and technologies for CTO. Developed in the course of the recommendations on the selection of materials and the use of restorative technology machining equipment will improve their durability. Introduction of new methods of thermal diffusion chromium plating and other ways to strengthen the permit based on the methods of correlation analysis and graph theory to obtain the regression equation, which will enable to forecast the durability of the coatings. The results can be used in machine building, instrument-making to ensure reliability, long service life of mechanical components, machine parts and structures that operate in a vibration in the design of precision instruments in the systems of precision mechanics and automatic control - solutions for precision positioning of elements of these systems in the presence of background vibration. The methods for calculating the resonant characteristics of the mechanical contact of the compounds may be used in the design of dry-friction dampers, shock absorbers, investigations of fretting compounds. Application of the results will help to solve a number of problems of identification of parameters of nonlinear vibration systems contact, non-destructive quality control of mechanical connections. Perhaps the patenting of methods and technologies to increase the resistance of contact interfaces in terms of vibration. It is expected that with the help of the developed techniques to create new anti-friction and lubricants for different friction machines become more efficient. Receipt of the results, methodologies and technologies developed will be implemented to strengthen the enterprises of Ukraine and the region by signing economic agreements, as well as used in the educational process at the university training for professions: "The equipment and food processing industries," "Technology and equipment renewal and increase the wear resistance of machines and Structures "," Mechanical Engineering "and in the preparation of doctoral and master's theses. The results will be in the nature of recommendations for the creation of test methods and systems analysis lubrication conditions for different branches of engineering. It is expected that with the help of the developed techniques to create new anti-friction lubricants for different friction machines become more efficient. For the results of the work were obtained 2 patents, published 20 papers presented to the protection doctoral thesis Dihi OV Experiments on the topic "theoretical methods of contact mechanics and wear of the friction surfaces lubricated." Fundamentally new technology of surface strengthening allow 2-6 times increase longevity myasopodribnyuyuchih cutting machines by LLC "Meat yard skirts," pumps in 2 times to increase the longevity of the pumps at the enterprises of JSC "Khmelnytsky macaroni factory" JSC, "Khmelnitsky sugar factory," FG " BARKOSOFT AGRO ".

Description of the development:
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The analysis of machine components and manufacturing equipment, suggests that its lack of reliability and durability, in many cases, predefined intense corrosion and mechanical wear (CMH) parts when exposed to corrosion-active media (KASS). Intensive research is focused on the study of failure mechanisms in the loading conditions of frictional contact friction and cavitation are held in many countries, where work on issues related to CMH improve the wear resistance of materials in contact with aggressive media. Therefore, the investigation of processes CMH, particularly in food production technology environments especially for Ukraine and Khmelnytsky region, where food and food processing industry is developing rapidly. The economic importance of improving the reliability and durability demonstrated by the fact that for 10 years for the repair of food enterprises of Ukraine spent funds that are equal to the total value of fixed assets.       Work on the creation of methods and systems for testing wear underway in KNU for the past 10-15 years. At present, increase the wear resistance of friction is achieved mainly through the establishment and improvement of new materials and lubrication conditions. Mechanics of contact interaction of surfaces in our time is the basis for the creation of materials. In this connection, the establishment of the contact surfaces of mechanical interaction, including blurred, and it is based on the development of testing methods is feasible.      Analysis and synthesis of fracture surfaces in the presence of corrosion-active media in friction and cavitation, based on current scientific research and experimental data allows us to consider ASM metals as a process which is based on a fatigue-electrochemical nature. As a result of the pulsed nature of the wear can be divided into two components of the potential (constant and variable part). As a result of galvanic corrosion occurring minerals contribute to the anodic dissolution of the active metal, which contributes to facilitate fracture. That is why the work is planned to be paid considerable attention to the influence of the variable part of the wear resistance of the friction surfaces when the CMH at the box office.      Reliability and long service life of mechanical connections for parts subject to vibration can be achieved while avoiding the resonance modes. Calculation of the contact resonance parameters should be carried out within the framework of models of nonlinear vibration systems. Vibration resistance is due to the contact surfaces including stress state of the surface layers, the surface microgeometry, elastic moduli of the material. By changing these values ??poverhnevoyuobrobkoy, laser doping of temper and could significantly improve the oper ^ characteristics of contact connections in terms of vibration.    In the course of the project is planned to obtain new scientific and practical results, namely, to obtain new data on the impact of KASS for wear process and the destruction of working surfaces, which will provide an opportunity on the basis of the provisions of the physico-chemical mechanics of materials to develop a science-based framework for analyzing and studying the processes CMH materials; based on the structure of the energy theory of wear, the hydrodynamic theory of shock waves and the equations of non-homogeneous continua in the elastic plastic field for the criteria and the basic equations kavіtatsіyno erozіynoї-wear materials, develop methodology for determining the corrosive factor in CMH metals by computer processing of the polarization curves resulting obtain analytical dependencies and relationships between corrosive and mechanical factors of destruction, which, in turn, will make it possible to develop methods for assessing prediction of durability of equipment parts, to establish the relationship between the composition, structure, reinforced layer parameters of the crystal structure and durability of hardened parts as they CMH; standpoint of the theory of dislocations invited to consider the cyclical nature of energy intensity of the surface layers of metals and their wear resistance at CMH in hostile environments, based on the previous intensification of metal surfaces is necessary to develop new methods and technologies CTO. Materials for the research to prepare for the Ph.D. defense. New methods for calculating the resonant characteristics of the contact details of interfaces in a dynamic vibration load, based on the use of quasi-static displacements contact dependencies on external forces. New ways to build the first and higher approximations and solution of equations of motion of nonlinear contact oscillating systems, which, unlike existing solutions tribologichni take into account the characteristics of contact surfaces. Quantitative calculation of the conditions the integrity of connections for parts due to vibration - the output contact beyond the previous limit offset tangential vibrations of a gap in the normal angular vibration. A new description of the dynamics of the forced vibration of the oscillator su: friction, which is fundamentally different from the existing models based on Coulomb's law, and vikorista these results in tribology. Experimental verification of the possibilities and conditions zastosuva developed theoretical models to ensure the integrity of contact connections in order to avoid resonance vibration modes. Increased vibration resistance of surfaces due to mechanical Comte millisecond and nanosecond pulsed laser processing.      The results will be in the nature of recommendations for the creation of test methods and systems analysis lubrication conditions for different branches of engineering.      It is expected that with the help of the developed techniques to create new anti-friction lubricants for different friction machines become more efficient.      For the results of the work were obtained 2 patents, published 20 papers presented to the protection doctoral thesis Dihi OV Experiments on the topic "theoretical methods of contact mechanics and wear of the friction surfaces lubricated." Fundamentally new technology of surface strengthening allow 2-6 times increase longevity myasopodribnyuyuchih cutting machines by LLC "Meat yard skirts," pumps in 2 times to increase the longevity of the pumps at the enterprises of JSC "Khmelnytsky macaroni factory" JSC, "Khmelnitsky sugar factory," FG " BARKOSOFT AGRO ".    We obtain statistical data on the reliability and durability of the components used in their wear at the cash register allows the food industry, in particular, to carry out a comprehensive study of wear parts of centrifugal pumps. The ways and methods of rapid determination of wear resistance of materials at CMH, and valuation methodologies for durability polimerkompozitsiynih protection, thermal diffusion and reinforced coatings allow science-based approach to the selection of restorative techniques, new methods and technologies for CTO.      Developed in the course of the recommendations on the selection of materials and the use of restorative technology machining equipment will improve their durability. Introduction of new methods of thermal diffusion chromium plating and other ways to strengthen the permit based on the methods of correlation analysis and graph theory to obtain the regression equation, which will enable to forecast the durability of the coatings.      The results can be used in machine building, instrument-making to ensure reliability, long service life of mechanical components, machine parts and structures that operate in a vibration in the design of precision instruments in the systems of precision mechanics and automatic control - solutions for precision positioning of elements of these systems in the presence of background vibration. The methods for calculating the resonant characteristics of the mechanical contact of the compounds may be used in the design of dry-friction dampers, shock absorbers, investigations of fretting compounds. Application of the results will help to solve a number of problems of identification of parameters of nonlinear vibration systems contact, non-destructive quality control of mechanical connections. Perhaps the patenting of methods and technologies to increase the resistance of contact interfaces in terms of vibration. It is expected that with the help of the developed techniques to create new anti-friction and lubricants for different friction machines become more efficient.       The results, methods and elaborate enhancement technology will be introduced at the enterprises of Ukraine and the region by signing economic agreements, as well as used in the educational process at the university training for professions: "The equipment and food processing industries," "Technology and equipment renewal and increase the wear resistance of machines and Structures "," Mechanical Engineering "and in the preparation of doctoral and master's theses.

Information about newness of the development:
there are inventor's certificate -- 5 items
there are Ukrainian patents -- 2 items

corresponds technical description
Conforms to technical characteristic

Possibility of transfer abroad:
Licence's sale
Combinated reduction to industrial level

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua