Russian Federation
employee
Moscow, Moscow, Russian Federation
Objective: to compare the reasons underlying unplanned ongoing uncoupling repairs (OUR) in order to find trends in component failure depending on the operating intensity. Methods: statistical analysis on the implementation of OUR for two groups of railway cars, classified as “moderate” (up to 600,000 km and/or 3 years) and “intensive” (regardless of mileage, upon reaching 2 years) was conducted. Pareto diagramme analysis was used to identify the principal malfunctions, accompanied by calculations of specific failure frequencies and the failure intensity coefficient. Results: the findings showed that vehicles subjected to intensive use require unscheduled repairs, on average, 1.6 times more frequently per vehicle than those under moderate use. The predominant defect sources were wheelset surface damage, including shelling, circumferential welds, and uniform wear, and the requirement for technological oil replacement in the gearbox. The study demonstrates that both the character and frequency of failures are substantially influenced by operating conditions. Practical significance: the data obtained will help rolling stock owners and operators predict the need for spare parts and production resources required for MRS repairs, optimize repair logistics and anticipate the demand for production resources and spare components for OUR repairs. The research proposes developing a specialized system to monitor the emergence and development of operational defects on the wheelset’s surface, optimize technological processes, and install onboard diagnostic equipment that will facilitate a transition to condition-based maintenance easier.
passenger railway car, unscheduled repair, ongoing uncoupling repair (OUR), mileage, railway car age, operational efficiency
1. Instrukciya po tehnicheskomu obsluzhivaniyu vagonov v ekspluatacii (instrukciya osmotrschiku vagonov) № 808–2022 PKB CV: utv. Sovetom po zheleznodorozhnomu transportu gosudarstv — uchastnikov Sodruzhestva protokolom ot 08.12.2022 № 77. 180 s.
2. Programma sbora statistiki po istorii remontov vagona na protyazhenii zhiznennogo cikla: svidetel'stvo o gosudarstvennoy registracii programmy dlya EVM № 2025619713, Rossiyskaya Federaciya / Shinkaruk A. S., Vishnyakov I. A.; zayavl. 07.04.2025; opubl. 17.04.2025.
3. RTM. Normiruemye pokazateli nadezhnosti passazhirskih vagonov lokomotivnoy tyagi / MPS Rossii. M., 2002. 76 s.
4. GOST 33943-2016. Nadezhnost' zheleznodorozhnogo podvizhnogo sostava. Terminy i opredeleniya: vved. 09.01.2017.
5. Kleschevnikova E. Yu., Kornishina V. N., Zhatchenko Ya. V. Vidy neispravnostey i metody ustraneniya na tekuschiy otcepochnyy remont gruzovyh i passazhirskih vagonov // Nauchno- tehnicheskoe i ekonomicheskoe sotrudnichestvo stran ATR v XXI veke. 2025. T. 1. S. 194–198.
6. Shinkaruk A. S., Kul'kov A. A., Rafikov R. H. Povyshenie effektivnosti tehnicheskogo obsluzhivaniya passazhirskogo podvizhnogo sostava // Vestnik Rostovskogo gosudarstvennogo universiteta putey soobscheniya. 2024. № 4. S. 229–237.
7. Shinkaruk A. S., Kulikov M. Yu. Analiz vliyaniya vneplanovogo remonta na effektivnost' ispol'zovaniya passazhirskogo vagona // Ekspluatacionnaya nadezhnost' lokomotivnogo parka i povyshenie effektivnosti tyagi poezdov: materialy VIII Vserossiyskoy nauchno- tehnicheskoy konferencii s mezhdunarodnym uchastiem / Omskiy gos. un-t putey soobscheniya. Omsk, 2024. S. 445–452.
8. Sovershenstvovanie tehnicheskogo obsluzhivaniya i remonta sistemy obespecheniya komforta passazhirskih vagonov / D. G. Evseev [i dr.] // Nauka i tehnika transporta. 2023. № 3. S. 37–40.
9. Sergeev K. A., Krivich O. Yu., Rusnak I. N. Metodika ocenki potrebitel'skih svoystv cel'nokatanyh koles passazhirskih vagonov // Nauka i tehnika transporta. 2014. № 3. S. 39–45.
10. Ivanova E. A., Savenkov E. I. Cifrovye platformy dlya povysheniya prozrachnosti processa obsluzhivaniya zheleznodorozhnogo podvizhnogo sostava // Ekonomika zheleznyh dorog. 2023. № 8. S. 65–70.
