THE INTERNATIONAL
TECHNICAL-ECONOMIC
JOURNAL

Contents

ENERGY

 

Murataeva G. A., Zakieva R. R., Murataev I. A.

Methods for the use of computers for solving problems of diagnostics of oil-filled electrical equipment in power industry development

 
7

Shamanov R. S., Lakhno A. V., Novikov E. V.

Мodernized method for charging battery batteries reversible current

 
12

Galiev R. M., Nigmetzyanova V. M.

Peculiarities of operation of passenger cars with combined energy installation

 
17

 

 

PROCESSES AND MACHINES OF AGROENGINEERING SYSTEMS

 

Belov A. A., Toporkov V. N., Vasiliev A. N.

Planning and conducting of a screening experiment research fertilizer whenin case of an electrohydraulic treatment solutions

 
22

Schmigel’ V. V., Uglovskiy A. S., Egorychev V. V.

Determination of the parameters of the electric field quail eggs based on the shape of the ellipsoid

 
29

Uglovskiy A. S., Schmigel’ V. V., Sotskaya E. V.

The determination of the field strength of a corona discharge for bulbous flower crops in greenhouses

 
36

Kabdin N. E., Andreev S. A.

Ensuring the uniformity of microwave processing of agricultural materials in volumetric resonator

 
42

Morozov N. M., Tsoy L. M., Rassakazov A. N.

The prospects of moving pig-to-date and digital technology

 
50

Antonova U. Yu., Leonov O. A.

The method of determining control points in the technological process of repair of cylinder liners

 
59

Novikov E. V., Lakhno A. V., Shamanov R. S.

Influence of the structure on the strength characteristics of composite materials and products of mechanical engineering

 
66

 

 

SAFETY OF HUMAN ACTIVITIES

 

Kalashnikova O. A., Shamshura S. A., Finochenko T. A., Chukarin A. N.

Experimental study of noise at the site milling of pipes spars

 
72

Kuldoshina V. V., Zhogal’ A. V., Lupunchuk M. Y.

Modern approaches to solution of problems of utilization of snow

 
79

Mustafayev Zh. S., Kozykeeva A. T., Kalmashova A. N., Kireycheva L. V.

Effect of climate on the hydrological mode of water treatment in the basin of the river Esil

 
85

Shebeko А. Yu.

The influence of fluorinated hydrocarbons on the performance of fire danger stoichiometric mixtures of the combustible gas-oxidizer

 
95

 

 

ABSTRACTS OF ARTICLES INDEXED IN AGRIS

 

Abstracts

102

 

 

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ENERGY

 

 

 

УДК 621.31:004

G. A. MURATAEVA, Ph. D. of Engineering Sciences, Associate Professor

R. R. ZAKIEVA, Ph. D. of Pedagogical Sciences, Associate Professor

I. A. MURATAEV, Ph. D. of Engineering Sciences, Associate Professor

Federal State Budgetary Educational Institution of Higher Education "Kazan State Power University", Russian Federation, Kazan

 

METHODS FOR THE USE OF COMPUTERS FOR SOLVING PROBLEMS OF DIAGNOSTICS OF OIL-FILLED ELECTRICAL EQUIPMENT IN POWER INDUSTRY DEVELOPMENT

Abstract. Determination of the structural-group composition of transformer oil is one of the methods of diagnosis of electrical insulating liquid of electrical equipment. Transformer oil is characterized by an average ratio of structural groups - aromatic and naphthenic rings, paraffin chains. The existing methods of determining the structural group composition of oils are based on the chemical analysis of transformer oil. The article proposes a method for determining the structural group composition of transformer oils by the intensity of the individual absorption bands in the near infrared region. The concentrations and absorption coefficients of each component of the groups are unknown. Finding the absorption coefficients of the components of the transformer oil groups is performed using the methods of the theory of experimental planning. The plan of factors can be formed by changing the concentration of aromatic, paraffin and naphthenic components of transformer oil or by diluting the initial oil with a testing diluent. Benzene can be used as a diluent. Determination of the desired concentration of the structural group composition will require three experiments, on the basis of which a system of equations is formed. Finding unknown variables in the resulting system of equations is carried out using a package of computer applications. On the basis of the stated technique the software for the computer for the purpose of automation of process of determination of structural group structure of transformer oil is developed. Experimental studies have shown that the technique can be used as a method for determining the structural group composition of transformer oil that does not require chemical reagents. The developed computer software allows to automate the process of determining the concentration of transformer oil components in the diagnosis of oil-filled electrical equipment.

Key words: transformer electrical equipment, diagnostics, structural group composition, computer program.

 

REFERENCES

1. Van-Nes K., Van-Vesten Kh. Sostav maslyanykh fraktsiy nefti i ikh analiz / Per. s angl. M. : Izd-vo inostr. lit.,1954. 463 p.

2. Lipshteyn R. A., Shakhnovich M. I. Transformatornoe maslo. M. : Energoatomizdat, 1983. 296 p.

3. Svi P. M. Metody i sredstva diagnostiki oborudovaniya vysokogo napryazheniya. M. : Energoatomizdat, 1992. 240 p.

4. Oreshenkova E. G. Spektral'nyy analiz : Ucheb. dlya tekhnikumov po spets. "Analiticheskaya khimiya". M. : Vysshaya shkola, 1982. 375 p.

5. Sidnyaev N. I., Vilisova N. T. Vvedenie v teoriyu planirovaniya eksperimenta: uchebnoe posobie dlya vuzov. M. : MGTU im. N. E. Baumana, 2011. 463 p.

6. Vasil'ev V. P. Analiticheskaya khimiya. V 2-kh ch. Chast' 2. Fiziko-khimicheskie metody analiza. M. : Vysshaya shkola, 1989. 384 p.

7. Murataeva G. A. Kontrol' sostoyaniya transformatornogo masla metodami spektroskopii v vidimoy i infrakrasnoy oblastyakh: dis. kand. tekhn. nauk / Murataeva Galiya Amirovna / Kazanskiy gosudarstvennyy energeticheskiy universitet. Kazan', 2011.

8. Sbornik rasporyaditel'nykh materialov po ekspluatatsii energosistem. Elektrotekhnicheskaya chast'. 5-e izd., pererab. i dop. M. : SPO ORGRES, 1992. Ch. 2.

9. RD 34.45-51.300–97. Ob'em i normy ispytaniy elektrooborudovaniya. 6-e izd., pererab. i dop. M. : ENAS, 2001.

10. RD 34.43.105–89. Metodicheskie ukazaniya po ekspluatatsii transformatornykh masel. M. : Soyuztekhenergo, 1989.

 

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УДК 621.311.61.001.76 

R. S. SHAMANOV, Ph. D. of Engineering Sciences, Associate Professor

A. V. LAKHNO, Ph. D. of Engineering Sciences, Associate Professor

Federal State Budgetary Educational Institution of Higher Education "Penza State University of Architecture and Construction", the Russian Federation, Penza

E. V. NOVIKOV, Ph. D. of Engineering Sciences, Associate Professor

Federal State Budgetary Educational Institution of Higher Education "Russian State Agrarian University – Moscow Agricultural Academy named after K. A. Timiryazev", Russian Federation, Moscow

 

MODERNIZED METHOD FOR CHARGING BATTERY BATTERIES REVERSIBLE CURRENT

Abstract. The methods of battery charging (battery) are considered. Their advantages and disadvantages are revealed. The disadvantage of the method of charging the battery at a constant current is the need to regulate and control the charging current, as well as intensive gas release at the end of the charge and the inability to remove deep sulfation of the plates and restore the lost capacity. With this method, the density of the charging current decreases with the charge, while the intensity of the decay of crystalline sulfate decreases, which makes this method ineffective for restoring the battery capacity. A modernized method of charging with a reversible current is proposed, which allows to quickly charge the battery to the nominal voltage and to intensify the process of battery desulfatation. With this charge, the discharge current time is recalculated in each cycle so that the voltage on the battery tends to the nominal. To implement the modernized method, a charger has been developed that allows using software to set the optimal charge parameters required for a specific battery. The developed charger independently selects the optimal modes of charge and discharge pulses depending on the characteristics of the connected battery; produces a battery charge that is completely discharged, and does not allow an increase in voltage above the nominal one when charging; has electronic protection against short circuit and reverse polarity when connecting the battery.

Key words: battery, plate sulfation, nominal voltage, charger, capacity recovery, reverse current. the optimal charging parameters.

 

REFERENCES

1. Yutt V. E. Elektrooborudovanie avtomobiley: Uchebnik dlya vuzov. 4-e izd., pererab. i dop. M. : Goryachaya liniya, 2006. 440 p.

2. Akimov S. V., Chizhov Yu. P. Elektrooborudovanie avtomobiley: Uchebnik dlya vuzov. M. : ZAO «KZhI «Za rulem», 2004. 384 p.

3. Elektrooborudovanie avtomobiley: Spravochnik / A. V. Akimov, O. A. Akimov, S. V. Akimov i dr.; Pod red. Yu. P. Chizhkova. M. : Transport. 1993. 223 p.

4. Zaryadnye ustroystva. Vypusk 2: Informatsionnyy obzor dlya avtolyubiteley / Sost. A. G. Khodasevich, T. I. Khodasevich. M. : NT Press, 2005. 192 p.

5. Pat. 133985 Rossiyskaya Federatsiya, MPK7 H 02 J 7/00. Zaryadnoe ustroystvo dlya akkumulya-tornykh batarey / Shamanov R. S., Frantsev S. M., Vikulov V. I.; № 2013107265/07; zayavl. 19.02.2013 ; opubl. 27.10.2013, Byul. № 30.

6. Zaryadnovosstanovitel'noe ustroystvo dlya avtomobil'nykh akkumulyatornykh batarey / Frantsev S. M., Shamanov R. S., Perekusikhina I. A. // Internet-zhurnal Naukovedenie. 2014. № 2(21). pp. 145–153.

 

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УДК 692.331.017-083

R. M. GALIEV, Ph. D. of Engineering Sciences, Associate Professor

V. M. NIGMETZYANOVA, Senior Lecturer Federal

State Autonomous Educational Institution of Higher Education "Kazan (Volga region) Federal University", Russian Federation, Kazan


PECULIARITIES OF OPERATION OF PASSENGER CARS WITH COMBINED ENERGY INSTALLATION 

Abstract. This article discusses the prospects for the production of cars with a combined power plant. In the process, the authors analyzed the operation of internal combustion engines and electric motors, noted the advantages and disadvantages of the engines. Comparison in percentage of the use of cars with a combined power plant abroad and in Russia; power of the internal combustion engine and electric motor as part of a combined power plant. The power comparison table will allow to take into account technical parameters at the service stations when purchasing the necessary equipment for diagnosing, and the table of the efficiency of use of an electric motor in a vehicle with a combined power plant will allow to calculate the difference in cost and fuel consumption and calculate the payback of a vehicle with an electric motor. The reasons for the cheapness of cars with a combined power plant in the secondary market are considered, remedial methods are proposed, and diagnostic methods are proposed for diagnosing such cars. 

Key words: passenger cars, internal combustion engines, electric motor, combined power plant, operation, service stations, secondary market.

 

REFRENCES

1. Umnyashkin V. A., Fil'kin N. M., Galiev R. M. Elektromekhanicheskaya transmissiya legkovogo avtomobilya // Trudy II mezhdunarodnoy nauchno-prakticheskoy konferentsii «Avtomobil' i tekhnosfera» (JCATS'2001). Kazan' : KGTU KAI, 2001. рр. 433−437.

2. Skol'ko avtomobiley zaregistrirovano v Rossii [Elektronnyy resurs]. URL: http://www.1gai.ru/publ/514260-skolko-avtomobiley-aregistrirovano-v-rossii.html (data obrashcheniya: 21.01.2018).

3. Rakov V. A. Razvitie mirovogo avtoparka gibridnykh avtomobiley // Sovremennaya tekhnika i tekhnologii. 2013. № 7 [Elektronnyy resurs]. URL: http://technology.snauka.ru/2013/07/2136 (data obrashcheniya: 18.11.2017).

4. Gibridnye avtomobili: schitaem ekonomiyu v kilometrakh [Elektronnyy resurs]. URL: http://www.kolesa.ru/article/gibridnye-avtomobili-schitaem-jekonomiju-v-kilometrah (data obrashcheniya: 30.01.2018.)

5. Federal'nyy zakon ot 10.12.1995 № 196 – FZ (red. ot 26.07.2017) «O bezopasnosti dorozhnogo dvizheniya», stat'ya 16. p. 2. [Elektronnyy resurs]. URL: http://base.garant.ru/10105643/ (data obrashcheniya: 18.11.2017).

6. Galiev R. M., Nigmetzyanova V. M. Silovye privody legkovogo avtomobilya s gibridnoy silovoy ustanovkoy // Mezhdunarodnyy tekhniko-ekonomicheskiy zhurnal. 2017. № 4. рр. 95−99.

7. Galiev R. M., Nigmetzyanova V. M. Razrabotka legkovogo avtomobilya s kombinirovannoy energeticheskoy ustanovkoy // Itogovaya nauchnaya konferentsiya: sbornik dokladov. Naberezhnye Chelny : Izdatel'sko-poligraficheskiy tsentr Naberezhnochelninskogo instituta K(P)FU, 2014. рр. 178−182.

 

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PROCESSES AND MACHINES

OF AGROENGINEERING SYSTEMS

 

 

 

УДК 631.17:635.9

A. S. UGLOVSKIY, Ph. D. in Engineering Sciences, Senior Lecturer

V. V. SCHMIGEL’, Advanced Doctor in Engineering Sciences, Professor

E. V. SOTSKAYA, Postgraduate Student

Federal State Budgetary Educational Institution of Higher Education "Yaroslavl State Agricultural Academy", Russian Federation, Yaroslavl

 

THE DETERMINATION OF THE FIELD STRENGTH OF A CORONA DISCHARGE FOR BULBOUS FLOWER CROPS IN GREENHOUSES

Abstract. In many cases, two-electrode and multi-electrode systems with different electrode potentials are used in the corona discharge field. The article presents the procedure and results of numerical analysis of the corona discharge field in a two-electrode system consisting of corona electrodes placed in a frame and grounding plates of a device for growing flower bulbs. The Elcut electric field analysis algorithm consists of two stages. Stage # 1 contains the approach of the electrostatic field without space charges. The result of this stage - the separatrix equation dividing the field into two areas: the area of the electric flow between the corona electrode and the flat electrode (sedimentary) and the area occupied by the flow between the two flat electrodes. Step 2 involves numerical analysis of the field in both areas. The numerical model is based on the assumption that the spatial charge of the corona discharge field does not change the position and shape of the separatrix. The simulation results are confirmed experimentally. The proposed method of analysis makes it possible to predict the behavior of a multielectrode corona system using the finite element method.

Key words: electric field, corona discharge, dielectric permeability, separatrix, polar coordinate system.

 

REFERENCES

1. Sotskaya E. V. Primenenie polya koronnogo razryada i razlichnogo vida osveshcheniya dlya tsvetochnykh lukovichnykh kul'tur v zashchishchennom grunte // Vestnik APK Verkhnevolzh'ya. 2017. № 4 (40). pp. 88–93.

2. Deng X., Adamiak K. The electric corona discharge in the triode system, IEEE Trans. Industry Appl., vol. 35, no. 4, pp. 767–773, 1999 [Online]. Available: http://dx.doi.org/10.1109/28.777183.

3. Miksta J., Zebrauskas S. “Analysis of the electric field in three electrode system with corona discharge”, Material science, vol. 16, no. 1–3, pp. 287–292, 1990.

4. Mckeown M., Trabelsi S., Tollner E. Nelson, & S.O. (2012). Dielectric spectroscopy measurements for moisture prediction in vidalia onions. Journal of Food Engineering., 111, 505-510.

5. Rafiroiu D., Morar R., Atten P., Dascalescu L. “Premises for the mathematical modeling of the combined corona-electrostatic field of roll-type separators”, IEEE Trans. Industry Appl., vol. 36, no. 5, pp. 1260–1266, 2000 [Online]. Available: http://dx.doi.org/10.1109/28.871273/.

6. Dumitran L. M., Atten P., Notingher P. V., Dascalescu L. 2-D corona field computation in configurations with ionising and nonionising electrodes, Journal of Electrostat., vol. 64, no. 3–4, pp. 176–186, 2006 [Online]. Available: http://dx.doi.org/10.1016/j.elstat.2005.05.005.

 

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УДК 631.3:621.43.004.67 

U. Yu. ANTONOVA, Postgraduate student

O. A. LEONOV, Advanced Doctor in Engineering Sciences, Professor, Research Scientist

Federal State Budgetary Educational Institution of Higher Education "Russian State Agrarian University – Moscow Agricultural Academy named after K. A. Timiryazev", Russian Federation, Moscow

 

THE METHOD OF DETERMINING CONTROL POINTS IN THE TECHNOLOGICAL PROCESS OF REPAIR OF CYLINDER LINERS

Abstract. Units and machine parts after overhaul must have a certain quality. The quality of refurbished machines, their units and aggregates is determined by the degree of conformity of their properties standards for new cars and parts, similar to evaluate the quality of the repair. The quality of repair is a complex multidimensional task. To solve it, it is necessary to take into account many interrelated factors: the design of machines, units, operating conditions, manufacturing technologies, quality of maintenance, as well as a number of other circumstances. To ensure continuous and dynamic quality management at the repair facility, a technical control scheme should be developed that identifies the parts and process operations to be monitored. On the example of the technological process of repair of the cylinder liner, a technique for assigning control points to assess the quality of the process at its stages is developed. Control point – the place of inspection to determine the presence of defects in the part. According to the results of the control, it is concluded whether the item is subject to further operation, repair, or the item is unusable and is subject to sending it to scrap. For each control point, the appropriate measuring instruments are selected. The technique of the final control of cylinder liners is presented, in which it is proposed to evaluate the quality of the part by the average size, taking into account the greatest ovality and taper. The use of recommended control points will improve the quality of products after major repairs.

Key words: repair, quality, cylinder liner, control points, defecation, metrological support, selective assembly, defective products.

 

REFERENCES

1. Erokhin M. N. Vzaimosvyaz' tochnosti i nadezhnosti soedineniy pri remonte sel'skokhozyaystvennoy tekhniki // Vestnik FGOU VPO MGAU. 2006. № 2. рр. 22−25.

2. Leonov O. A., Bondareva G. I., Shkaruba N. Zh. Kachestvo sel'skokhozyaystvennoy tekhniki i kontrol' pri ee proizvodstve i remonte // Traktory i sel'khozmashiny. 2016. № 3. рр. 30−32.

3. Bondareva G. I. Sostavlyayushchie kachestva remonta // Sel'skiy mekhanizator. 2016. № 7. рр. 2−4.

4. Leonov O. A., Bondareva G. I., Shkaruba N. Zh. i dr. Razrabotka sistemy menedzhmenta kachestva dlya predpriyatiy tekhnicheskogo servisa. M. : RGAU–MSKhA, 2016. 161 p.

5. Erokhin M. N. Osobennosti obespecheniya kachestva remonta sel'skokhozyaystvennoy tekhniki na sovremennom etape // Vestnik FGOU VPO MGAU. 2005. № 1. рр. 9−12.

6. Leonov O. A., Temasova G. N. Protsessnyy podkhod pri raschete zatrat na kachestvo dlya remontnykh predpriyatiy // Vestnik FGOU VPO MGAU. 2007. № 2. рр. 94−98.

7. Leonov O. A., Temasova G. N. Metodologiya otsenki zatrat na kachestvo dlya predpriyatiy // Vestnik FGOU VPO MGAU. 2007. № 5. рр. 23−27.

8. Leonov O. A., Temasova G. N. Postroenie funktsional'noy modeli protsessa «Tekhnicheskoe obsluzhivanie i remont sel'skokhozyaystvennoy tekhniki» s pozitsii trebovaniy mezhdunarodnykh standartov na sistemy menedzhmenta kachestva // Vestnik FGOU VPO MGAU. 2009. № 7. рр. 35−40.

9. Karpuzov V. V., Samordin A. N. Postanovka menedzhmenta protsessov servisnogo predpriyatiya APK // Trudy GOSNITI. 2013. T. 111. № 1. рр. 171−175.

10. Bondareva G. I. Postroenie sovremennoy sistemy kachestva na predpriyatiyakh tekhnicheskogo servisa // Sel'skiy mekhanizator. 2017. № 8. рр. 34−35.

11. Leonov O. A., Shkaruba N. Zh., Vergazova Yu. G., Antonova U. Yu. Metrologicheskoe obespechenie kontrolya gil'z tsilindrov pri remonte dizeley // Vestnik Baranovichskogo gosudarstvennogo universiteta. Seriya: Tekhnicheskie nauki. 2018. № 6. рр. 104−109.

12. Bondareva G. I. Vkhodnoy kontrol' i metrologicheskoe obespechenie na predpriyatiyakh tekhnicheskogo servisa // Sel'skiy mekhanizator. 2017. № 4. рр. 36−38.

13. Leonov O. A., Shkaruba N. Zh. Raschet zatrat na kontrol' tekhnologicheskikh protsessov remontnogo proizvodstva // Vestnik FGOU VPO MGAU. 2004. № 5. рр. 75−77.

14. Leonov O. A., Shkaruba N. Zh. Issledovanie zatrat i poter' pri kontrole sheek kolenchatogo vala v usloviyakh remontnogo proizvodstva // Vestnik FGOU VPO MGAU. 2013. № 2. рр. 71−74.

15. Svid. 2018619746 Rossiyskaya Federatsiya. Svidetel'stvo ob ofitsial'noy registratsii programmy dlya EVM. Opredelenie tekhniko-ekonomicheskoy effektivnosti sredstv izmereniya / U. Yu. Antonova, O. A. Leonov, M. A. Ibodullaeva; zayavitel' i pravoobladatel' FGBOU VO RGAU-MSKhA imeni K. A. Timiryazeva; opubl. 20.06.2018.

16. Leonov O. A., Antonova U. Yu. Metodika rascheta ekonomii ot ispol'zovaniya bolee tochnogo sredstva izmereniy pri izgotovlenii i remonte mashin // Vestnik FGOU VPO MGAU. 2018. № 4(86). рр. 42−46.

17. Leonov O. A., Shkaruba N. Zh. Metody i sredstva izmereniy. M. : RGAU–MSKhA, 2014. 256 p.

18. Golinitskiy P. V., Toygambaev S. K. Izmerenie i kontrol' detaley transportnykh i transportno-tekhnologicheskikh kompleksov. M. : Kompaniya Sputnik +, 2018. 154 p.

 

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УДК 621:621.763-192

E. V. NOVIKOV, Ph. D. of Engineering Sciences, Associate Professor

Federal State Budgetary Educational Institution of Higher Education "Russian State Agrarian University – Moscow Agricultural Academy named after K. A. Timiryazev", Russian Federation, Moscow

A. V. LAKHNO, Ph. D. of Engineering Sciences, Associate Professor

R. S. SHAMANOV, Ph. D. of Engineering Sciences, Associate Professor

Federal State Budgetary Educational Institution of Higher Education "Penza State University of Architecture and Construction", Russian Federation, Penza


INFLUENCE OF THE STRUCTURE ON THE STRENGTH CHARACTERISTICS OF COMPOSITE MATERIALS AND PRODUCTS OF MECHANICAL ENGINEERING

Abstract. The influence of the structure on the strength characteristics of polymer composite materials is considered. The problem of determining the relationship between the structure and properties of materials is based on the choice of characteristics corresponding to the studied properties. The most interesting are the structural-sensitive characteristics, such as strength, hardness, porosity, the level of values of which is determined by various elements of the structure. The increase in physical and mechanical properties of filled composite materials is associated with the formation of their optimal structure, the necessary feature of which is the presence of a spatial framework of filler particles and the film phase of the matrix. The creation of enhanced dispersion-filled composites is associated with the combination of relatively rigid and strong particles of small size 1...1000 μm with matrix materials. At the stage of technological impact composite systems have the properties of fluidity, which when cured into a solid state. In the polymer composite there is a spontaneous transition of filler particles into clusters, accompanied by the separation of the matrix phases. It is shown that to describe the state of the structure of polymer composite materials it is necessary to enter the value of the degree of phase separation, and to assess the hardening of the polymer composite material through the indicators of the state of the structure to use the value of the order parameter. It is shown on the model system that the formation of isolated clusters, the formation of percolation framework and transition to lattice packing occurs with increasing concentration of the filler. an increase in strength.

Key words: optimal design, composite material, strength, the particles of filler, film phase, an isolated cluster of the percolation framework.

 

REFRENCES

1. Bobryshev A. N., Erofeev V. T., Kozomazov V. N. Fizika i sinergetika dispersno-neuporyadochennykh kondensirovannykh kompozitnykh sistem. SPb., 2012. 476 p.

2. Bobryshev A. N., Lakhno A. V., Voronov P. V., Bobryshev A. A,. Novikov E. V. Analiz kriticheskogo soderzhaniya napolnitelya v kompozite s pozitsiy teorii perkolyatsii // Mezhdunarodnyy tekhniko-ekonomicheskiy zhurnal. 2013. № 6. рр. 93−98.

3. Shafigullin L. N. Issledovanie vysokotekhnologichnykh kompozitsionnykh materialov s zadannymi fiziko-mekhanicheskimi svoystvami dlya izdeliy mashinostroeniya: dis. kand. tekhn. nauk / Shafigullin Lenar Nurgaleevich. Naberezhnye Chelny , 2009. 227 p.

4. Chudaev A. E. Avtomatizatsiya rascheta prochnosti kompozitsionnykh materialov // Nauchno-metodicheskiy elektronnyy zhurnal «Kontsept». 2016. T. 17. рр. 564–568. URL: http://e-koncept.ru/2016/46288.htm.

5. Lakhno A. V., Bobryshev A. N., Zubarev P. A., Petrenko V. O., Novikov E. V. Nekotorye aspekty usileniya polimernykh kompozitov // Mezhdunarodnyy tekhniko-ekonomicheskiy zhurnal. 2012. № 5. рр. 100–105.

6. Novikov E. V., Lakhno A. V., Bobryshev A. N., Zubarev P. A. Klastero- i treshchinoobrazovanie v kompozitakh // Mezhdunarodnyy tekhniko-ekonomicheskiy zhurnal. 2012. № 5. рр. 96–99.

7. Bobryshev A. N., Lakhno A. V., Kozomazov R. V., Bobryshev A. A. Struktura i svoystva dispersno-napolnennykh kompozitnykh materialov. Penza : Izd-vo PGUAS, 2012. 160 p.

 

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SAFETY OF HUMAN ACTIVITIES

 

 

 

УДК 628.517

O. A. KALASHNIKOVA, Ph. D. of Engineering Sciences

Rostov Helicopter Production Complex Public Joint Stock Company "Rostvertol", Russian Federation, Rostov-On-Don

S. A. SHAMSHUR, Advanced Doctor in Engineering Sciences, Researcher

Federal State Budgetary Educational Institution of Higher Education "Don State Technical University", the Russian Federation, Rostov-On-Don

T. A. FINOCHENKO, Ph. D. of Engineering Sciences, Associate Professor

A. N. CHUKARIN, Advanced Doctor in Engineering Sciences, Professor Sciences, Head of Department

Federal State Budgetary Educational Institution of Higher Education "Rostov State University of Railway Engineering", Russian Federation, Rostov-On-Don

 

EXPERIMENTAL STUDY OF NOISE AT THE SITE MILLING OF PIPES SPARS

Abstract. The article deals with the experimental data of vibroacoustic characteristics on the site of longitudinal milling machines when milling long products such as beams and shells (for example, milling spars) on the machines of the model KU-191 and the machine longitudinal milling with a movable portal model FP-141. On the longitudinal milling machines processed a wide range of products under different cutting conditions. Bending stiffness significantly affects the intensity of the milling process. The milling process is characterized by significant changes in the spectrum of the emitted noise, and the formation of noise is determined by the acoustic radiation of the workpiece and the cutting tool. When cutting the nature of the noise spectrum varies significantly. In the high-frequency part of the spectrum, the intensity of sound radiation increases significantly. The studies have helped to identify identical patterns in the spectral composition of noise in machines of different models, which allows to develop a common approach to the modeling of vibroacoustic dynamics of these units. Therefore, on the basis of experimental data processing, the dependences of level changes with varying depth of cut and feed are obtained. The regression dependences of the frequency-dependent coefficients of the vibrational energy losses of both the products of the shell type (for example, spars) and the technological subsystem "product – support device", on the basis of which the calculations of the vibration and noise spectra are performed, are experimentally obtained. The results of theoretical studies have shown that noise reduction can be achieved by selecting the loss factors of the spar and the device support, located between the brackets.

Key words: milling machines, vibro-acoustic characteristics, noise spectra, the maximum allowable levels.

 

REFERENCES

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2. Meskhi B. Ch. Uluchshenie usloviy truda operatorov metallorezhushchikh i derevoobrabatyvayushchikh stankov za schet snizheniya shuma v rabochey zone (teoriya i praktika) / DGTU. Rostov-na-Donu, 2003. 131 p.

3. Ivanov N. I. Osnovy vibroakustiki. SPb. : Politekhnika, 2000. 482 p.

4. Finochenko T. A., Meskhi B. Ch. Issledovanie vibroakusticheskikh kharakteristik maloshumnogo mekhanizma podderzhki prutka // Vestnik RGUPS. 2009. № 4. рр. 27−30.

 

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УДК 551.578.4.002.8

V. V. KULDOSHINA, Ph. D. of Engineering Sciences, Associate Professor

A. V. ZHOGAL’, Teacher

M. Y. LUPUNCHUK, Postgraduate Student

Budget Institution of Higher Education of Khanty-Mansiysk Autonomous Okrug – Yugra "Surgut State University", Russian Federation, Surgut

 

MODERN APPROACHES TO SOLUTION OF PROBLEMS OF UTILIZATION OF SNOW

Abstract. In this study the problem of snow mass utilization in Khanty-Mansiysk Autonomous Okrug - Ugra is considered. The characteristic of the territory of Khanty-Mansiysk Autonomous Okrug - Ugra, as well as its climatic features. The urgency of problems connected with utilization of snow masses is determined. When writing the work took into account a number of economic and environmental factors affecting the choice of methods of snow removal. Identified as the most promising technological methods of processing and snow removal for settlements and actually used in the Khanty-Mansiysk Autonomous Okrug-Ugra. A no-export method of snow storage, in which snow is stored in the shafts in the raft lane until the end of the winter period. And the export method, in which snow is exported to the places of its storage, this method is the most common in the Khanty-Mansiysk Autonomous Okrug-Ugra, but at the same time the most expensive. For the purpose of complex improvement of an ecological situation in article the polluting substances containing in snow masses are considered. Analyzed and recycling options snow when using snow-melting stations and stationary engineering-equipped snow fall points. It is concluded that the use of stationary snow melting equipment with the use of drainage stations for the removal of treated melt water is most acceptable in the settlements.

Key words: snowpack, snow disposal, snow dump, fact.

 

REFERENCES

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9. Prognozirovanie ekologicheskogo sostoyaniya pridorozhnoy polosy v zimniy period / O. V. Ryabova [i dr.]. Voronezh : VGLTA, 2005. 67 p.

10. Ukhin D. V. Obosnovanie ekonomicheski tselesoobraznogo sposoba utilizatsii snega s ochistkoy taloy vody // Vestnik VolGASU. Ser. Stroitel'stvo i arkhitektura. 2009. Vyp. № 16 (35). рр. 172–176.

11. Rossiyskaya Federatsiya. Zakony. Ob okhrane okruzhayushchey sredy : feder. zakon : [prinyat Gos. Dumoy 20.12.2001 g. : po sost. na 27.12.2009]. M. : Knorus, 2010. 64 p.

 

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УДК 543.061

A. Yu. SHEBEKO, Ph. D. of Engineering, Head of Department

Federal State Budgetary Institution "All-Russian Research Institute of Fire Protection" EMERCOM of Russia, Russian Federation, Balashikha

 
THE INFLUENCE OF FLUORINATED HYDROCARBONS ON THE PERFORMANCE OF FIRE DANGER STOICHIOMETRIC MIXTURES OF THE COMBUSTIBLE GAS – OXIDIZER

Abstract. The study of combustion characteristics of fuel–oxidant–fluorinated hydrocarbon mixtures of near-stoichiometric composition was carried out. The oxidizer was a mixture of nitrogen and oxygen containing O2 in an amount of 15, 20.6 (air) and 25 % (vol.). Studied such deterrents as triptorelin CHF3, C2HF5 pentaverate and perforatin C4F10. Experiments were conducted on an experimental stand with a reaction chamber volume of 4.2 L. the Combustible mixture in the reaction vessel was set by the partial pressures after the preliminary evacuation of the vessel. Burnable nichrome wire with a diameter of 0.3 mm was used as an ignition source (supply voltage – 42 V). The pressure in the volume of the reaction vessel was measured using a high-speed sensor. As parameters characterizing the phlegmatizing ability of inhibitors, the normal combustion rate, the maximum rate of explosion pressure increase and the maximum explosion pressure were studied. It was found that fluorinated hydrocarbons can exhibit both inhibitory and promotional effects. It was found that the promotional effect was to increase the maximum pressure of the explosion, if a small amount of fluorinated hydrocarbon was added to the combustible mixture. In this case, the maximum explosion pressure and the normal burning rate are significantly reduced. Significant differences in the influence of fluorinated hydrocarbons on near-stoichiometric and near-boundary flames were revealed. The interpretation of the experimental results was carried out.

Key words: calostemmateae mixture, the normal rate of combustion of near-limit mixture, the oxidizing environment, the maximum rate of pressure rise of the explosion, the maximum explosion pressure. 

 

REFRENCES

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8. On inhibition and promotion of methane combustion by fluorinated hydrocarbons in oxidizers with different oxygen content / Yu. N. Shebeko, A. Yu. Shebeko, V. V. Azatyan, Navzenya // Proceedings of the Sixth International Seminar on Fire and Explosion Hazards. Leeds, Research Publishing, 2010. pp. 621−631.

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10. Vliyanie khladonov na kharakteristiki goreniya gazovozdushnykh smesey v zamknutom sosude / V. V. Azatyan, Yu. N. Shebeko, V. Yu. Navtsenya, S. N. Kopylov i dr. // Pozharovzryvobezopasnost'. 1998. T.7. № 3. pp. 8−18.

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12. The influence of halogenated fire suppressants on the combustion of C1 – C2 hydrocarbons / V. Babushok [et al.] // Proceedings of Halon Alternatives Technical Working Conference (HOTWC). USA: Albuquerque, 1996. pp. 271–282.

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