Locomotive Reliability Assessment Method

Locomotive Reliability Assessment Method

Pavel Gubarev, Dmitry Glazunov, Vladimir Krotov

download PDF

Abstract. The authors describe the analysis of the current state of the problem under consideration. A definition of “averaged failure flow parameter” is given. The periods of traction rolling stock life cycle are considered. The assumption of event distribution laws exponentiality is introduced, which makes it possible to obtain expressions of the main reliability indices in the analytical form. The work of depot service locomotives to ensure the required reliability and readiness of the rolling stock during their normal operation has been assessed. The introduction of the term “readiness” into the modern practice of traction rolling stock reliability estimation is considered. The initial data for calculating the indexes of locomotive uptime and readiness are presented. Calculated values of readiness and no-failure indices of electric locomotives in operation are obtained. The calculated values of internal and technical availability coefficients are compared with similar indicators established by technical specifications. Control procedures were performed to determine the compliance of each set of locomotives (EP1, 2ES4K) with the uptime requirements. As a result of comparing the calculated values of internal and technical availability factors (for electric locomotives EP1 and 2ES4K with analogous values set by specifications (EP1 and 2ES4K) it was determined that the surveyed locomotives comply with the established availability requirements. As a result of control procedures to determine the compliance of each set of EP1 and 2ES4K locomotives with the uptime requirements, it was determined that the set of 2ES4K electric locomotives for the run in question does not fully comply with the uptime requirement. And the set of EP1 electric locomotives meets the reliability requirements, but the error value is higher than 20%. To clarify both events, it is necessary to increase the mileage interval of the locomotives and repeat the procedure for determining compliance with the uptime requirements. The method of assessing the uptime and readiness of locomotives during their normal operation makes it possible to identify existing shortcomings in the operation of rolling stock and to form measures to improve the quality of rolling stock operation.

Rolling Stock, Diagnostic Methods, Electrical Equipment, Reliability, Repair, Technical Diagnostics

Published online 1/5/2022, 8 pages
Copyright © 2022 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Pavel Gubarev, Dmitry Glazunov, Vladimir Krotov, Locomotive Reliability Assessment Method, Materials Research Proceedings, Vol. 21, pp 109-116, 2022

DOI: https://doi.org/10.21741/9781644901755-20

The article was published as article 20 of the book Modern Trends in Manufacturing Technologies and Equipment

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] Teptikov N.R., Mashnin D.V. Principles of maintenance and repair processes organization for electric locomotives // Actual problems of railway transport development and young scientists’ role in their solution: Collection of scientific papers. Rostov n/D.: RGUPS, 2000. С. 79-80.
[2] Lyabakh N. N., Teptikov N. R., Matvienko V. P. Problems of Technical Diagnostics of Electric Rolling Stock // Integration of Branch and University Science: Problems of Modern Machine Building: Materials of the International Scientific and Engineering Conf. С. 126-127.
[3] Nagovitsyn V.S. Method and algorithm for making decisions on the rolling stock maintenance (repair) according to the state // Train Traffic Safety: Proc. IV scientific-practical conf. / MIIT – Moscow, 2003. – P. IV- 64 – IV – 69.
[4] Stepanov, S.I., Buyanov, A.B. Technique of Calculating Thermal State of Power Semiconductor Device with Coolant //Emproving of Power Semiconductor Converters Cooling Systems of Railway Transport: Collection of Scientific Papers of LIIZhT. Л.: 1988. С. 105-116.
[5] Khasyanova D.U., Khasyanov U. Design technology of thermomechanical joints using combined couplings and their application. In the collection: Basic research and innovative technologies in mechanical engineering. Proceedings of the V-th International Scientific Conference. Editorial board: Ganiev R.F., Glazunov V.A., Sigov A.S., Albagachiev A.Y., Romanov A.N., Khruschov M.M., 2017. С. 299-300.
[6] Babkov Yu.V. Guaranteed locomotives – the lost readiness / Yu.V. Babkov, V.A., Perminov, E.E. Belova et al. // Lokomotiv, 2013, №5 . – с. 34-35.
[7] Khasyanova D.U. Increasing the reliability of fixed joints of pipelines through the use of shape memory effect in couplings of thermomechanical joints. Problems of mechanical engineering and machine reliability. 2019. № 1. С. 103-108.
[8] Kokhanovskii V.A., Glazunov D.V. Сomposite fluoroplastic coatings in reciprocating circular motion. Russian Engineering Research. 2020. Т. 40. № 2. С. 130-132. https://doi.org/10.3103/S1068798X2002015X
[9] Mayba I.A., Glazunov D.V. Optimization of tribotechnical characteristics of wheel–rail friction modifiers. Journal of Friction and Wear. 2020. Т. 41. № 6. С. 517-520. https://doi.org/10.3103/S1068366620060136
[10] Basics of theory and practice of reliability of technical devices / A.V. Gritsenko, V.V. Strekopytov.-Petersburg: Sudarynya, 2004. -272с. ISB5-88718-050-1.
[11] Kokhanovskii V.A., Glazunov D.V., Zoriev I.A. Macrocompositional polymer-powder bearings. Journal of Machinery Manufacture and Reliability. 2019. Т. 48. № 2. С. 130-135. https://doi.org/10.3103/S1052618819020080
[12] Kokhanovskii V.A., Maiba I.A., Glazunov D.V., Bol’shikh I.V. Lubricator casings for locomotive wheel rims. Russian Engineering Research. 2016. Т. 36. № 5. С. 364-365. https://doi.org/10.3103/S1068798X16050099
[13] Chetcherugov V.A. Reliability of locomotives / V.A. Chetcherugov, A.D. Puzankov -M.: Route 2003.-415 p.
[14] Appendix to the order of OAO Russian Railways from 12.11.2008 № 2367r/Methodical provisions for calculating the reliability of locomotives on the results of their operation. – Moscow: OAO “Russian Railways”, 2010.
[15] Gorsky A.V. Reliability of Electric Rolling Stock / A.V. Gorsky, A.A. Vorobyov. – Мoscow: Marshrut, 2005 – 303 p.
[16] Pugachev V.S. Probability Theory and Mathematical Statistics.
[17] Kochanowski V.A., Mayba I.A., Glazunov D.V., Zoriev I.A. Powder bearings with polymer inserts. Journal of Friction and Wear. 2019. Т. 40. № 3. С. 229-233. https://doi.org/10.3103/S1068366619030048
[18] Kokhanovsky V.A., Glazunov D.V. A lubricant for rotaprint lubrication of the wheel–rail system. Journal of Friction and Wear. 2020. Т. 41. № 6. С. 531-537. https://doi.org/10.3103/S1068366620060100
[19] RD50-690-89. Technical specifications for locomotives building. Guiding document for standardisation. Group T51- Reliability in machinery. Methods for evaluation of reliability indices according to experimental data. Introduced on 01.01.1999.
[20] GOST P 56046-2014. Indicators of use of locomotives. Terms and definitions.