Engineering industry and life safety. №4 (14), 2012
Zelinskiy V.V. Plastic equilibrium of the surface layer of the friction
Plastic equilibrium of the surface layer of the friction
Zelinskiy V.V.
The topicality of researches devoted to interaction of surfaces in the process of friction on the small size of the actual contact area is substantiated. That interaction occurs into tribomates of many machines, and mechanisms as well as in the process of technological running-in. In relation to the plain bearings by the method of slip lines is shown, that at plastic deformation of micro-roughness is convergence and overlap of the deformed parts under them. The modeling of real interaction by the introduction of the hard cone with a certain sizes into plastic half-space, subjected to one of the conditions of plasticity is considered. The basic equations from the results of mathematical modeling of interaction of rubbing surfaces, obtained on the basis of the fundamental assumptions of the theory of plasticity are presented. Evaluation of the results of mathematical modeling on the correspondence of the results of the experiments, established by the method of x-ray structural analysis is given.
Keywords: deformation, surface, plasticity, modeling, micro-roughness, material, slip.
References
- Zelinskiy V.V. Communication between the parameters tribocontact during running // New materials and technologies in mechanical engineering research institute. Volume 1. – Bryansk, 2002. – P. 41-44.
- Zelinskiy V.V. Phenomenological bases of the isofriction running-in of supports of the slip of machines. Part 1 // Engineering industry and life safety, 2009, № 6. – P. 117-121.
- Zelinskiy V.V. Phenomenological bases of the isofriction running-in of supports of the slip of machines. Part 2 // Engineering industry and life safety, 2011, № 3. – P. 48-52.
«Engineering industry and life safety» №4 (14), 2012. Pages: 46-49
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Zelinskiy Viktor Vasiljevich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: selvil46@yandex.ru
Telkov I.A. Stability of the indenter at smoothing non-ferrous metals
Stability of the indenter at smoothing non-ferrous metals
Telkov I.A.
For modern production requires a high performance metal cutting and superficial plastic deformation (SPD). The process SPD at high speeds is accompanied by vibrations and processes of oscillatory. These processes reduce the quality of the machined surfaces. The transition from a stable position of the indenter for smoothing to the vibrating almost unnoticeable. This is especially pronounced in the processing of materials such as aluminum, copper, titanium and their alloys. The results of experimental studies to determine the boundary of technological of factors of machining, appropriate of sustainable process smoothing nonferrous metals. Describes a method of finding a simplified of stability criterion of the indenter for smoothing of parts of non-ferrous metals.
Keywords: fluctuation, stability.
References
- Kudinov V.A. Machine dynamics. – M: Mashinostroenie, 1967. – 360 p.
- Telkov I.A. Regular component of the profile of the roughness after superficial plastic deformation // Engineering industry and life safety, 2011, № 1 (8). – P. 73-76.
- Telkov I.A. Self-oscillatory movement of the indenter in the direction of the velocity at the surface plastic deformation // Engineering industry and life safety, 2012, № 2. – P. 73-76.
«Engineering industry and life safety» №4 (14), 2012. Pages: 62-65
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Telkov Ivan Anatoljevich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: telkoviv@yandex.ru
Barinov S.V. The evaluation criteria of contact-fatigue failure of machine parts
The evaluation criteria of contact-fatigue failure of machine parts
Barinov S.V.
The article raises the question of evaluation criteria of contact-fatigue failure of machine parts. In addition to the traditional criteria – contact strength and contact fatigue, to include additional parameters, it is proposed to introduce additional parameters: contact resistance chipping ΔI, the relative area of chipping ΔS, the relative number of chipping Δn, the maximum relative chipping area ΔSmax, minimum relative chipping area ΔSmin. The input parameters allow better display picture wearing the action of cyclic loads of contact, to assess durability of the samples after hardening, compare the size and number of chipping on hardened and not reinforced surface. The proposed indicators can be calculated as in manual mode, using, for example, a digital image chipping and Compass program, and in the semi-based application on the basis of computer programs for metallographic analysis.
Keywords: contact resistance, contact fatigue, chipping resistance contact, testing, chipping, fracture.
References
- Kirichek A.V., Soloviev D.L., Barinov S.V., Silantyev S.A. Increased contact fatigue machine parts heterogeneous strain hardened static and pulse processing // Strengthening technology and coatings, 2008, № 7(43). – P. 9-15.
- Solovyov D.L., Kirichek A.V., Barinov S.V. Increased durability of machine parts creating heterogeneous case hardened structure // Heavy Engineering, 2010, № 7. – P. 4-7.
- Kirichek A.V., Soloviev D.L., Barinov S.V., Tarasov D.E. Experimental setup for investigation of contact-fatigue wear of machine parts // News OrelGTU. Series «Fundamental and applied problems of Engineering and Technology», 2009, № 3-2/275 (561). – P. 7-13.
- Barinov S.V., Silantyev S.A., Solovyov D.L., Medvedev M.N. Equipment for research material to resist chipping contact // Engineering industry and life safety, 2010, № 7. – P. 87-88.
«Engineering industry and life safety» №4 (14), 2012. Pages: 28-31
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Barinov Sergey Vladimirovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: box64@rambler.ru
Sharapov R.V. The structure of the groundwater monitoring system
The structure of the groundwater monitoring system
Sharapov R.V.
In this paper we propose the structure of the groundwater monitoring system. The monitoring system includes observation subsystem, subsystem of receiving data, storage subsystem, the subsystem assessment of groundwater, prediction subsystem. Subsystem of receiving data contains modules for automatic and manual receiving data, pre-processing, data conversion and data validation modules. Data validation module can detect errors in the stage of receiving data and send corrective action in observation subsystem. Storage subsystem contains a database of observations and database of models. Database of models used to make predictions changes in the state of groundwater. Subsystem assessment analyzes information from a database of observations and generates reports.
Keywords: monitoring, groundwater.
References
- The concept of groundwater state monitoring. – M: Ministry of Natural Resources, 1992. – 12 p.
- Guidelines on the organization and production of observation mode level, pressure and flow of groundwater. – M: VSEGINGEO, 1983.
- Guidance on the production of observation mode, the temperature of groundwater. – M: VSEGINGEO, 1983.
- Sharapov R.V. Monitoring exogenous processes // Engineering industry and life safety. 2012, № 2. – P.39-42.
- Sharapov R.V. The transition from the technical to the natural-technical systems // Engineering industry and life safety. 2012, № 2. – P.43-46.
- Sharapov R.V. Principles of groundwater monitoring // Engineering industry and life safety. 2012, № 3. – P.27-30.
- Shestakov V.M. Groundwater monitoring – the principles, methods, problem // Geoecology. 1993, № 6. – P. 3-12.
«Engineering industry and life safety» №4 (14), 2012. Pages: 20-23
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Sharapov Ruslan Vladimirovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: info@vanta.ru
Muradov I.B., Krjukov D.B., Kazantsev I.A., Shatalov N.V. Noise machines reduction through the use of piezoelectric ceramic transducers
Noise machines reduction through the use of piezoelectric ceramic transducers
Muradov I.B., Krjukov D.B., Kazantsev I.A., Shatalov N.V.
A scheme is proposed, in which the locations of the noise sources, special housings with ferroelectric ceramics coating that through direct and inverse piezoelectric record an acoustic signal with built-in microprocessor analyzes it and generates a response in anti-acoustic wave. As the technology of coatings applied ferroelectric ceramics gas-dynamic spraying. In this paper the dependence of the acoustic power of the change in the area of the electrode surface and the polarization voltage. To increase the effectiveness of noise reduction of working arrangements, where their amplitude – frequency characteristics are very different from each other, including the width of the preferred frequencies proposed multicell design ferroelectric ceramics layer.
Keywords: piezoelectric effect, acoustic power, frequency response, resonance frequency.
References
- Sverdlin G.M. Sonar transmitters and antennas. – L: Shipbuilding, 1988. – 147 p.
- Sverdlin G.M. Applied Underwater Acoustics. – L.: Shipbuilding, 1990. – 320 p.
- Rimsky-Korsakov A.V. Electroacoustics. – M.: Communications, 1973. – 272 p.
«Engineering industry and life safety» №4 (14), 2012. Pages: 55-57
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Muradov Ilya Borisovich – Ph.D., Penza State University, Penza, Russia. E-mail: mibweld@yandex.ru
Krjukov Dmitriy Borisovich – Ph.D., Penza State University, Penza, Russia. E-mail: mibweld@yandex.ru
Kazantsev Igor Alekseevich – Ph.D., Penza State University, Penza, Russia. E-mail: mibweld@yandex.ru
Shatalov Nikolay Vladimirovich – Student, Penza State University, Penza, Russia. E-mail: mibweld@yandex.ru
Orekhov A.A., Dorofeev N.V. Geoelectric modeling underground water objects
Geoelectric modeling underground water objects
Orekhov A.A., Dorofeev N.V.
The geoelectric model of underground water objects is constructed in this work. The ecological condition of superficial and underground water objects can be estimated in real time by means of the systems of geoelectric control constructed on the basis of multipole electric systems. The constructed model is based on the analysis of transfer function of the geoelectric cut represented in the form of consistently connected RC-circuits. Change of transfer function values testifies to change of a chemical composition or a hydrodynamic mode of aeration zone and the first water-bearing horizon. The assessment of layers parameters – specific resistance and specific dielectric permeability – is made by means of the specialized algorithms applied to these purposes in geophysics. The presented geoelectric model is intended for further application in the system of environmental monitoring constructed on the basis of the geoelectric probing methods.
Keywords: environmental monitoring, gydrogeoecology, conductometry, geoelectric control, geodynamic object, conductivity.
References
- Hydrogeology. Ed. V.M. Shestakov, M.S. Orlov. – M: MoscowStateUniversity Press, 1984 – 317 p.
- Waite J.R. Geoelektromagnetizm. – M: Nedra, 1987. – 235 p.
- Kuzichkin O.R. Data processing algorithms in the multi-polar electro radar systems // Radio Engineering, 2007, № 6. – P. 60-63.
- Kuzichkin O.R. The algorithm for generating the optimal probing radar signals in electric monitoring // Radio Engineering, 2006, № 6. – P. 119-122.
- Kuzichkin O.R., Orekhov A.A. Design of the measuring path of the geoelectric monitoring // Design and technology of electronic means, 2011, № 1. – P. 25-30.
- Kuzichkin O.R., Tsaplev A.V. Polarization characteristics of electromagnetic radar signals and analysis in Geomonitoring system // Radio Engineering, 2006, № 11. – P. 86-90.
- Orekhov A.A., Dorofeev N.V. Geoelectric method of quality control water objects // Engineering industry and life safety, 2012, № 2. – P. 33-35.
- Orekhov A.A., Dorofeev N.V. The system for ecological monitoring water objects based on the method of geoelectrical controls // Engineering industry and life safety, 2012, № 2. – P. 36-38.
«Engineering industry and life safety» №4 (14), 2012. Pages: 16-19
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Orekhov Aleksandr Aleksandrovich – teacher, Murom Institute of Vladimir State University, Murom, Russia. E-mail: alexorems@yandex.ru
Dorofeev Nikolay Viktorovich – Ph.D., Murom Institute of Vladimir State University Murom, Russia. E-mail: DorofeevNV@yandex.ru
Karpov A.V. Definition of structural steels machinability
Definition of structural steels machinability
Karpov A.V.
One of the important problems of mechanical engineering is to improve the workability of construction materials, including carbon and alloy steels. In this case, the quantitative characteristic of workability, as technological properties of the material is normal and is often difficult to realize in a variation of physical and mechanical properties of the material pieces within the party or non-guaranteed (and even unknown) properties of the workpiece material. Knowledge of the true values of workability will calculate the optimum cutting speed in the processing of procurement and thus ensure the best performance in compliance with the optimum period of life of the tool. The paper analyzes the difficulties of the existing approaches to machinability of structural materials and offers a new experimental method for rapid determination of workability, which is based on the use of specific indicators of cutting and simply implemented in the procurement department or mechanical plot. The proposed rapid method of avoiding costly and time-consuming tests showed good agreement with the reference values of the coefficient of workability of carbon and alloy steels brands.
Keywords: cutting materials, machinability of materials by cutting, cutting the specific work.
References
- Ignatov S.N., Karpov A.V., Raspopin A.P. Evaluating the effectiveness of treatment using the blade of the dimensionless energy criterion // STIN, 2004, № 12. – P. 23-26.
- Karpov A.V.To the question of management of cutting process on the basis of power laws of deformation and destruction of solid materials // Engineering industry and life safety, 2011, № 1. – P. 37-49.
- Karpov A.V. Optimization of сutting processes on the basis of the energy patterns of materials deformation and fracture // Engineering industry and life safety, 2012, № 1. – P. 58-64.
- Karpov A.V. Energy efficiency of cutting // Bulletin PNIPU. Engineering, materials science, 2012, Volume 14, Number 1. – P. 51-59.
- Ordinartsev I.A, Filippov G.V., Shevchenko A.N. Reference toolmaker – L: Mechanical Engineering, 1987. – 846 p.
«Engineering industry and life safety» №4 (14), 2012. Pages: 50-54
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Karpov Aleksey Vladimirovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: krash75@mail.ru
Dorofeev N.V., Orekhov A.A. Increased reliability of geodynamic control system through the use of new techniques for measuring and monitoring
Increased reliability of geodynamic control system through the use of new techniques for measuring and monitoring
Dorofeev N.V., Orekhov A.A.
In this paper the method of increasing the reliability of the geodynamic control through the introduction of new methods of measurement and control. The proposed method is based on the equipotential geoelectric method to the registration of the phase characteristics of an elliptically polarized field and contactless transformer sensors. The proposed changes can not only get rid of the shortcomings inherent in the electric survey equipment, but also by elements of the measuring path redundancy to improve the reliability of the system. Schemes of combin-ing the elements of the measuring path of geodynamic control and graphics probability of failure-free operation of the system geodynamic control before and after the application of a technique. We show that the proposed method of measurement and control increases mean time to failure with probability 0.9, and 2.25 times of 6.75 years.
Keywords: geoelectric monitoring system, monitoring system, geo-ecology, geo-ecological monitoring, equipotential resistivity method, reliability, increased reliability.
References
- Dorofeev N.V., Orekhov A.A.Exchange of information in the system of the geodynamic control // Technology of Technosphere Safety, 2012, № 4 (44).
- Orekhov A.A., Dorofeev N.V. Information-measuring system for geoelectrical monitoring of geodynamic objects // Radio Engineering and Telecommunication Systems, 2012, № 2.
- Orekhov A.A., Dorofeev N.V. The organizational structure of geo-environmental monitoring of geodynamic objects // Technology of Technosphere Safety, 2012, № 4 (44).
- Kuzichkin O.R., Kuligin M.N., Kalinkina N.E. Register of geodynamics surface roughness in electrical prospecting equipotential method // Methods and means of communication and information processing. Vol. 1. – St. Petersburg: Gidrometeoizdat – 2001.
- Orekhov A.A., Dorofeev N.V. Geoelectric method of quality control water objects // Engineering industry and life safety, 2012, №2. – P. 33-35.
«Engineering industry and life safety» №4 (14), 2012. Pages: 12-15
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Dorofeev Nikolay Viktorovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: DorofeevNV@yandex.ru
Orekhov Aleksandr Aleksandrovich – teacher, Murom Institute of Vladimir State University, Murom, Russia. E-mail: alexorems@yandex.ru
Lieberman J.L., Gorbunova L.N. Device for removing icicles on the perimeter of the roof of the building
Device for removing icicles on the perimeter of the roof of the building
Lieberman J.L., Gorbunova L.N.
Given reasons for the formation of icing on the roofs of the buildings at the temperature of external air from-1–2°C to 8-10°C degrees. Under the influence of solar radiation or heat produced from the roof, the snow melts, the water flows down to the edge of the roof, where, coming into contact with a cold surface, air, freezes and forms ice «cap». The ice here, gradually accumulating, forms the ice, from which in the subsequent «germinate» icicles. Icicles often fall, causing injury to people, damaging the roof, facades of buildings, con-structions, vehicles, destroying the drainage pipes, etc. There are the following main directions of preventing the formation of icicles: improvement of drainage of water from the roofs of buildings; decrease the intensity of snow melting on the main plane of the building roofs, gutters, etc.; reduction of the weight of snow, which can accumulate on the roof; the use of devices and devices for the removal of icing. Proposed device for removal of icicles on the perimeter of the roof of the building.
Keywords: icicle frost.
References
- Antipenko A.I., Antipenko A.A. Tool for removing ice dams from the eaves of the roof // Russia Patent № 2096567, E04D 13/076, 20.11.97.
- Gorbunova L.N., Lieberman J.L. Device to remove icicles along building roof perimetre // Russia Patent № 2422600, E04D 13/076, 27.06.11.
«Engineering industry and life safety» №4 (14), 2012. Pages: 8-11
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Lieberman Jakov Lvovich – Ph.D., Ural Federal University, Ekaterinburg, Russia. E-mail: Yakov-Liberman@List.ru
Gorbunova Lyubov Nikolaevna – Ph.D., Siberian Federal University, Krasnoyarsk, Russia. E-mail: Brigitta_81@mail.ru
