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5
Jul

Kokoreva O.G., Shlapak L.S. Metallographic study results in static-pulsed hardening of heavy duty machine parts surfaces

Metallographic study results in static-pulsed hardening of heavy duty machine parts surfaces

Kokoreva O.G., Shlapak L.S.

The paper presents the results of microstructural studies as a comparative quantitative analysis of sample microsections produced of 110G13L steel grade and hardened by the static-pulsed treatment. The research was done at the central laboratory of «Murom Switch Works». The grain size is determined in accordance with GOST 5639-82 standard values. A quantitative assessment of sample microstructure characteristics depending on the static-pulsed mode hardening is presented. Microstructure grain size dynamics on the sample hardened surface depth is considered. Microstructural study confirming theoretical hypotheses within the surface hardening mechanism development by means of the surface-plastic technique is performed. Structural changes mechanism in the samples produced of HMS in static-pulsed treatment is studied. The research proves that the reason for hardening is austenite grain fragmentation into smaller blocks and grain twinning.

Keywords: microstructure, grain size, heavy-loaded surface static-pulse treatment, surface hardening, durability, depth of the hardened layer.

References

  1. Kirichek A.V., Kokoreva O.G., Lazutkin A.G., Soloviev D.L. Static-pulse treatment and equipment for its implementation // STIN, 1999, № 6. – P. 20-24.
  2. Kirichek A.V., Soloviev D.L. Ways of strengthening the dynamic surface plastic deformation // Forging and stamping production, 2001, № 7. – P. 28-32.
  3. Smelyanskiy V.M. Mechanical hardening of surface plastic deformation. – Moscow: Mashinostroenie, 2002. – 300 p.
  4. Lazutkin A.G., Kokoreva O.G. Strengthening and shaping surfaces static-pulse processing // Precision technology and transport systems: Proceeding of the Internetional scientific and engineering Conference – Penza, 1998. Part 2. – P. 124-126.
  5. Kokoreva O.G. Technological opportunities static-pulse processing // Engineering technique, 2001, № 2. – P. 12-15.
  6. Kokoreva O.G. Results investigations of heavy-duty surfaces, hardened static-pulse method // Bulletin of mechanical engineering, 2010, № 3.
  7. Kirichek A.V., Soloviev D.L., Lazutkin A.G. Technology and equipment to static-width surface treatment of plastic deformation. – Moscow: Mashinostroenie, 2004.

«Engineering industry and life safety» №4 (18), 2013. Pages: 63-66

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Kokoreva Olga Grigorjevna – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: kokoreva_olga_2.11@mail.ru
Shlapak Lyudmila Sergeevna – Teacher, Murom Institute of Vladimir State University, Murom, Russia. E-mail: tms@mivlgu.ru

5
Jul

Ermoshenko Y.V., Bolshakov R.S., Kaimov E.V. Dynamic response in the vibration-protection system assessment

Dynamic response in the vibration-protection system assessment

Ermoshenko Y.V., Bolshakov R.S., Kaimov E.V.

The paper considers dynamic response identification method in mechanical vibration systems. Dynamic reactions between inertial-mass and connecting elements (springs and dampers) as well as reactions in contacts with bearing surfaces are determined on the basis of obtaining reduced rigidities. These parameters are determined during the transformation of structural models of initial design schemes. The approach under discussion is based on structural concept of mechanical vibration systems. They are transformed into corresponding structural schemes of automatic control systems. When you select an object for the constraint force calculation as the second-order integrator which corresponds to the object to protect in vibration-proof systems, for example, the feedback physically corresponds to the dynamic response. The examples are given. The technique for performing required changes and obtaining analytical relations for dynamic connection response determination is developed.

Keywords: method of definition of dynamic reactions at vibration influences, vibroprotection systems, transfer functions.

References

  1. Vibration technology : a guide in 6 vols. Vol. 6. Protection against vibration and shock / ed. K.V. Frolov. – Moscow: Mashinostroenie, 1981. – 456 p.
  2. Eliseev S.V., Khomenko A.P. The problem of vibration isolation and vibration technical objects in the works Irkutsk Mechanics School // Modern technologies. System analysis. Modelling, 2005, № 5. – P. 6-26 .
  3. Harris C.M., Piersol A.G. Shock and vibration Handbook. Fifth Edition. McGraw – Hill. New York, 2002. ISBN 0-07-137081-1.
  4. Eliseev S.V., Dimov A.V. Formalization describing relationships in complex systems, vibration isolation with additional elements // Modern technologies. System analysis. Modelling, 2004, № 3. – P. 10.
  5. Khomenko A.P., Eliseev S.V., Ermoshenko Y.V. Methodological basis for solving the problems of dynamics. Mechatronic approaches (Part I) // Modern technologies. System analysis. Modelling, 2012, № 4. – P. 1-20.
  6. Eliseev S.V., Dimov A.V. Some features of the structural representations of two-mass vibrating systems // Modern technologies. System analysis. Modelling, 2006, № 6. – P. 46-54.
  7. Belokobylskiy S.V., Eliseev S.V., Sitov I.S. Interaction through links mass-inertion element in the theory of mechanical chains // Systems. Methods. Technology, 2012, № 2. – P. 7-15.
  8. Eliseev S.V., Moscowskiy A.O., Bolshakov R.S., Savchenko A.A. Integration capabilities methods of circuit theory and the theory of automatic control in the dynamics of machines // techomag.edu.ru: Science and education: e- Science technical publication, 2012, № 6. URL. http://technomag.edu.ru/doc/378699.html.

«Engineering industry and life safety» №4 (18), 2013. Pages: 50-62

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Ermoshenko Yulia Vladimirovna – Ph.D., Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: ermosh_emf@irgups.ru
Bolshakov Roman Sergeevich – Graduate student, Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: bolshakov_rs@mail.ru
Kaimov Evgeniy Vitaljevich – Graduate student, Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: eugen-kaimov@yandex.ru

5
Jul

Sharapov R.V. Conformity algorithm for exogenous processes monitoring data

Conformity algorithm for exogenous processes monitoring data

Sharapov R.V.

The paper deals with conformity of exogenous processes monitoring data obtained from different sources. To provide sharing data with different accuracy and measurement error, an algorithm for its conformity is present-ed. The algorithm involves bringing data to a single measurement unit. Data with varying accuracy is brought to single accuracy and order. Accuracy is determined by taking into account the measurement interval. For con-formal processing data, having different error, a three-item combination of «value, accuracy, measuring inter-val» is applied. Error value can significantly change the measurement data. For this reason, when calculating the trend lines (process dynamics) from various sources data, it is necessary to perform the estimation based on the three values rather than on a specific value.

Keywords: exogenous processes, monitoring, data, data processing, error, matching.

References

  1. Sharapov R.V.The transition from the technical to the natural-technical systems // Engineering industry and life safety, 2012, № 2. – P.43-46.
  2. Sharapov R.V. Monitoring exogenous processes // Engineering industry and life safety, 2012, № 2. – P.39-42.
  3. Sharapov R.V.Indicators for monitoring and assessment of karst processes // Engineering industry and life safety, 2013, № 1. – P.28-34.
  4. Sharapov R.V.On the conformity of monitoring data obtained from various sources// Engineering industry and life safety, 2013, № 4. – P.43-46.
  5. Sharapov R.V.Some problems of exogenous processes monitoring // Fundamental research, 2013, № 1-2. –P. 444-447.
  6. SharapovR.V., Sharapova E.V.The problem of integration of digital collections of the state of ecosystems // Engineering industry and life safety,2009, № 6. – P.75-78.
  7. Sharapov R.V. Determination of karst collapse intensity from incomplete data // Engineering industry and life safety, 2013, № 2. – P.36-40.

«Engineering industry and life safety» №4 (18), 2013. Pages: 47-49

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Sharapov Ruslan Vladimirovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: info@vanta.ru

5
Jul

Sharapov R.V. On the conformity of monitoring data obtained from various sources

On the conformity of monitoring data obtained from various sources

Sharapov R.V.

The paper deals with the issues of processing data obtained from different sources. This data formats are different and can be received by means of different devices using various techniques. Furthermore, data may have different accuracy and measurement error. This complicates their sharing and can lead to significant errors. That is why, it is advisable to apply three-item combinations of «value, error, measurement interval», converting and bringing the combinations to common measurement units, if necessary, instead of using direct indicator readings taken from one source or another. This solution enables us to provide sufficient adequacy of data, collected from various sources, to the practical situation. In addition, the measurement error record enables us to assess the processes dynamics more accurately. So, you can filter value instability in the error zone and identify really significant changes.

Keywords: exogenous processes, monitoring, data, data processing, error, information source.

References

  1. Sharapov R.V. Monitoring exogenous processes // Engineering industry and life safety, 2012, № 2. – P.39-42.
  2. Sharapov R.V.The transition from the technical to the natural-technical systems // Engineering industry and life safety, 2012, № 2. – P.43-46.
  3. Dimakova N.A., Sharapov R.V. The problem of groundwater pollution // Modern high technologies, 2013, № 2. – P. 79-82.
  4. Sharapov R.V.Principles of groundwater monitoring // Engineering industry and life safety, 2012, № 3. – P.27-30.
  5. Sharapov R.V.The structure of the groundwater monitoring system// Engineering industry and life safety, 2012, № 4. – P.20-23.
  6. Sharapov R.V. The generalized structure of the groundwater monitoring system // 13 international multidisciplinary scientific geoconference SGEM2013. Water resources. Forest, marine and ocean ecosystems. Conference proceedings. 16-22 June 2013, Albena, Bulgaria, 2013. P. 389-392.
  7. Novitskiy P.V., Zograph I.A. Estimation of errors of measurement results. – Moskow: Energoatomizdat, 1990.
  8. Granovskiy V.A., Siraya T.N. Methods of experimental data processing. – Leningrad: Energoatomizdat, 1990.

«Engineering industry and life safety» №4 (18), 2013. Pages: 43-46

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Sharapov Ruslan Vladimirovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: info@vanta.ru

5
Jul

Orekhov A.A., Dorofeev N.V. Formation of water bodies quality criterion in geoelectric monitoring method

Formation of water bodies quality criterion in geoelectric monitoring method

Orekhov A.A., Dorofeev N.V.

The article presents formation of water body integral quality criterion in geoelectric monitoring method. To fulfill this task it is necessary to consider the operational principles of water body quality geoelectric monitoring method, to consider the performance standards according to the requirements of the state standards and to develop an algorithm for water body quality control facilities in geoelectric monitoring. The resulting water body quality integral criterion includes the following indicators: transfer function deviation of the water body geoelectric section under study from the initial default value, water solution conductivity in the body, the pollutant salts content in the solution, the total solution salinity level in the body under study, the solution hardness in the test body. The resulting algorithm can be applied to environmental monitoring systems employing conductometric or geoelectric controlling techniques of water bodies.

Keywords: environmental monitoring, geoelectric control, surface and underground water, conductivity.

References

  1. SanPin 2.1.5.980-00. Hygienic requirements for the protection of surface waters sanitary rules and norms.
  2. Orekhov A.A., Dorofeev N.V. The organizational structure of geo-environmental monitoring geodynamic objects // Technology of technosphere security, 2012, № 4 (44). – P. 4-8.
  3. 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.
  4. PC SOP RT 002-1-003-94 Rapid methods of quality control of natural and waste water and distilled water according to their conductivity. Guidelines. – Kazan, 1995.

«Engineering industry and life safety» №4 (18), 2013. Pages: 39-42

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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

4
Jul

Dorofeev N.V., Orekhov A.A., Romanov R.V. Effectiveness evaluation of automated environmental groundwater monitoring system

Effectiveness evaluation of automated environmental groundwater monitoring systemal

Dorofeev N.V., Orekhov A.A., Romanov R.V.

The paper presents the effectiveness dependence of the long-term automated environmental groundwater monitoring system, based on the aeration zone geoelectric monitoring method as well as on the number of contactless transformer sensors and the distance between them. The equipment costs and the area occupied by the system are considered as well. The basic criteria for evaluating the automated control and monitoring system effectiveness are described. The choice of the statistical criterion for evaluating the effectiveness of similar systems as a basic one is reasoned. According to the results, the optimum number of contactless transformer sensors in the environmental groundwater monitoring system is determined to come at eight. The optimal distance between the sensors is specified as 30 meters. In accordance with these parameters, the system efficiency formula is found. The efficiency calculation was carried out for the multi-electrode setup.

Keywords: groundwater monitoring system, monitoring system, geo-ecology, geo-ecological monitoring, unsaturated zone.

References

  1. Orekhov A.A., Dorofeev N.V. Information-measuring system for monitoring geodynamic geoelectric objects // Radio Engineering and Telecommunication Systems, 2012, № 2. – P. 60-62.
  2. Orekhov A.A., Dorofeev N.V. Algorithm for correcting the influence of interference on the hydrological monitoring geodynamic objects // Algorithms, methods and data processing systems, 2012, № 22. – P. 74-78.
  3. Dorofeev N.V.,Orekhov A.A. Increase the efficiency of the geodynamic control through the introduction of new geoelectric models // Engineering industry and life safety, 2012, № 3. – P. 11-14.
  4. GOST 24.702-85 Effectiveness of automated control systems. Basic provisions.
  5. Kasatkin A.S., Kuzmin I.V. Evaluating the effectiveness of automated control systems. – Moscow: Energiya, 1967. – 80 p.
  6. Alexandrov A.G. Optimal and adaptive systems // Tutorial. – M.: Higher School, 1989. – 263 p.
  7. Orekhov A.A., Dorofeev N.V. Investigation of influence of groundwater regime on geodynamic control objects // Algorithms, methods and data processing systems, 2012, № 21. – P. 46-52.

«Engineering industry and life safety» №4 (18), 2013. Pages: 35-38

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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
Romanov Roman Vyacheslavovich – Graduate student, Murom Institute of Vladimir State Uni-versity, Murom, Russia. E-mail: romanov.roman.5@yandex.ru

4
Jul

Dorofeev N.V., Orekhov A.A., Romanov R.V. Correction algorithm of geodynamic monitoring system probing signal

Correction algorithm of geodynamic monitoring system probing signal

Dorofeev N.V., Orekhov A.A., Romanov R.V.

The paper considers the correction algorithm of geodynamic monitoring system probing signal developed on the basis of equipotential geoelectric method. The described correction algorithm is designed for processing data received from temperature and humidity sensors, proximity transformer sensors in order to reduce the influence of temperature and hydrological interference on the performance of geodynamic monitoring system of subsurface soil. The correction algorithm under discussion can be easily employed in existing geodynamic monitoring systems after the introduction of minor changes to them. For the correction algorithm operation you must have a geoelectric section study area; a geoelectric model of the geological study area section, taking into account soils electromagnetic properties; soil database, their properties and their dependences on temperature and humidity.

Keywords: geoelectric monitoring system, monitoring system, geoecology, geo-ecological monitoring, forecasting.

References

  1. Orekhov A.A., Dorofeev N.V. Information-measuring system for monitoring geodynamic geoelectric objects // Radio Engineering and Telecommunication Systems, 2012, № 2. – P. 60-62.
  2. Dorofeev N.V.,Orekhov A.A. Increase the efficiency of the geodynamic control through the introduction of new geoelectric models // Engineering industry and life safety, 2012, № 3. – P. 11-14.
  3. Instanes A. Arctic Climate Impact As-sessment – Scientific Report, 2006, chapter 16.
  4. Orekhov A.A., Dorofeev N.V. Investigation of influence of groundwater regime on geodynamic control objects // Algorithms, methods and data processing systems, 2012, № 21. – P. 46-52.
  5. Kamshilin A.N., Kuzichkin O.R., Tsaplev A.V. Study the effects of climate interference in multichannel measurement device geoelectric signals // Radiotechnology, 2008, № 9. – P. 129-133.
  6. Tsaplev A.V., Kuzichkin O.R. Application of regression processing to compensate for thermal interference in the geoelectric monitoring // Listening to the radio industry, 2012, № 2. – P. 147-153.
  7. Orekhov A.A., Dorofeev N.V. Algorithm for correcting the influence of interference on the hydrological monitoring geodynamic objects // Algorithms, methods and data processing systems, 2012, № 22. – P. 74-78.

«Engineering industry and life safety» №4 (18), 2013. Pages: 31-34

Download full text:Dorofeev N.V., Orekhov A.A., Romanov R.V. Correction algorithm of geodynamic monitoring system probing signal

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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
Romanov Roman Vyacheslavovich – Graduate student, Murom Institute of Vladimir State Uni-versity, Murom, Russia. E-mail: romanov.roman.5@yandex.ru

4
Jul

Sereda S.N. Analysis of efficiency of the ecological risk reduction methods

Analysis of efficiency of the ecological risk reduction methods

Sereda S.N.

The aim of work is the system analysis of the efficiency of strategies to provide the required level of the system safety and the reduction of the ecological risk. Environmental and economic feasibility of the proposed solutions, which increase the level of the system safety, are based on the estimation such factors as a probability of accidents, a reliability, a value of damage, the cost of the environmental protection measures and the life safety of workers. The criteria of evaluation of the effectiveness, which take into account both an environmental and an economic indicators, is introduced. The results of the analysis of the typical solutions, which are widely used in practice, are given, such as, the reservation of the system elements, the implementation of the control and protection systems from hazards, the automation of the control processes, the organizational measures on the improvement of the working conditions.

Keywords: model of accident, probability of accident, environmental risk.

References

  1. Belov P.G. System analysis and modeling of the dangerous processes in techosphere. – Moscow: Academia, 2003. – 512 p.
  2. Belov S.V. Life safety and Environmental protection (techno sphere safety). – Moscow: Uratis, 2011. – 680 p.
  3. Krass M.S. Modeling of ecologo-econo-mics systems. – Moscow: Infra-M, 2010. – 272 p.
  4. Pereezdchikov I.V. The Analysis of the dangerous of industrial systems Men-mashine-environment and the defense base. – Moscow: CNORUS, 2011. – 784 p.
  5. RD 03-418-01. Methodical recommendations to the risk analysis of the dangerous industrial objects. Documents of interfiled application on the application of the safety engineering. Gostechnadzor of Russia, 2001. – 20 p.
  6. Sereda S.N. Optimization of the technological processes safety indicators // Engineering industry and life safety, 2011, № 2. – P. 26-30.
  7. Sereda S.N. Estimation of the ecological risk with fuzzy models // Engineering industry and life safety, 2013, № 3. – P. 15-20.
  8. Shubin R.A. Reliability of technical systems and technogenic risk. – Tambov: FGBOU VPO «TGTU», 2012. – 80 p.

«Engineering industry and life safety» №4 (18), 2013. Pages: 25-30

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Sereda Sergey Nikolaevich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: sereda-2010@mail.ru

4
Jul

Kalinichenko M.V. Some aspects of the resonance absorbers employment in urban areas

Some aspects of the resonance absorbers employment in urban areas

Kalinichenko M.V.

The paper presents possible provisions used to reduce acoustic-noise load on urban areas residents. The issues of applying noise-control options like sound-absorbing and soundproofing screens as well as resonance absorbers are considered. Calculation options of some key parameters for sound-absorbing devices are presented. According to the results of laboratory studies of resonator sound-absorbing properties effectiveness we can say that silencing polyharmonic resonators turn out to be the most effective ones. It is possible to design a resonator with sufficient uniform acoustic-frequency response that provides sound absorption either across the range or across the noise maximum intensity range. The most viable option to use such a resonator is its combination with an acoustic screen by assembling them into a single unit. In this case, the protective functions performed by the screen will be complemented by the absorption of the incident sound wave on the screen which will reduce the level of the reflected signal.

Keywords: noise, noise pollution, soundproofing screen, resonance absorber.

References

  1. Minina N.N. Noise reduction in road building. Abstract of the thesis for the degree of Ph.D. – S.Pb., 2006.
  2. Ivanov N.I. Protecting the public from high noise exposure // Supplement to «Safety life», 2011, № 10.
  3. Kalinichenko M.V. Some aspects of the problem of pollution in urban areas motor vehicles (for example, Murom) // Ecology and Industry of Russia, 2012, № 12. – Pp. 54-59.
  4. Ivanov N.I., Semenov N.G., Tyurina N.V. Acoustic screens to reduce noise in residential areas // Supplement to «Safety life», 2012, № 4.
  5. Bulkin V.V., Belyaev V.E., Sergeev V.N. Engineering design elements of RES in terms of mechanical and acoustic effects / Edited by V.V. Bulkin. – Murom: Polygraphic center MI VlSU, 2004. – 131 p .
  6. Ivanov N.I. Engineering Acoustics . Theory and practice of noise control: a tutorial. – Moscow: University Book, Logos, 2008. – 424 p.
  7. Application for PM, № 2013121429/03, E01F8/00. Noise reducing screen / Bulkin V.V., Kalinichenko M.V., Filkov D.E., Shtykov E.A. – Priority from 07.05.2013.
  8. Application for PM, № 2013121443/03 , E01F8/00. Silencer / Bulkin V.V., Kalinichenko M.V. – Priority from 07.05.2013.

«Engineering industry and life safety» №4 (18), 2013. Pages: 18-24

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Kalinichenko Marina Valerjevna – Teacher, Murom Institute of Vladimir State University, Murom, Russia. E-mail: marinakali@mail.ru

4
Jul

Ermolaeva V.A. The effect of contact pressure welding process on the atmospheric air composition

The effect of contact pressure welding process on the atmospheric air composition

Ermolaeva V.A.

The paper considers the process of contact pressure welding as a source of industrial and environmental haz-ards. It analyzes the technological process impact on the environment. Production hazardous and harmful fac-tors are identified. Welding fume composition is analyzed. The paper presents the calculation of total and max-imum single pollutant emissions as well as the comparison of the actual emission values and MPE. The distance from the emission source, where ground-level pollutant concentration reaches its maximum value, is calculated. Pollutant dispersion in the atmosphere is calculated. MPC maximum-one-time excess of manganese, carbon monoxide and nitrogen dioxide is determined. The main types of dust collection devices and their application are analyzed. The choice of the possible methods for cleaning polluted air is reasoned. It is advisable to develop a local ventilation system and to clean dusty gas mixture through the electrostatic filter.

Keywords: contact welding, diffusion of pollutants.

References

  1. Ermolaeva V.A., Kozikova I.V. Calculation of theoretically necessary thickness of a layer and volume of the catalyst for clearing of gas emissions of difficult structure // Engineering industry and life safety, 2011, № 1. − P.4-7.
  2. Ermolaeva V.A. Theoretical bases of process of crushing by manufacture of medical products // Engineering industry and life safety, 2011, № 2. − P.14-16.
  3. Bebneva S.I., Ermolaeva V.A. The problems of industrial process safety production of oxygen from the air // Advances in current natural sciences, 2011, № 7. − P.78.
  4. Kozikova I.V., Ermolaeva V.A. The use of a catalytic method of neutralization of organic impurities in gas emissions of complex composition // Advances in current natural sciences, 2011, № 7. − P. 123.
  5. Free document library // www.norm-load.ru
  6. Building portal StroyPlan.ru // www.stroyplan.ru

«Engineering industry and life safety» №4 (18), 2013. Pages: 12-17

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Ermolaeva Vera Anatoljevna – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: ermolaevava2013@mail.ru

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