Assessment of the performance of a multi-phase system for maintenance and repair of freight cars
https://doi.org/10.46973/0201-727X_2025_3_54
Abstract
The article is devoted to the assessment of the indicators of a multi-phase system of technical maintenance (TM) and current uncoupled repair (RIR) of freight cars at technical maintenance points (TMP). The relevance of the study is due to the risks of failures of technical elements of cars in the conditions of mass servicing of rolling stock flows. To optimize the processes, a methodology of mass service theory (MST) with decomposition into three successive phases is proposed.
The TM model as a three-phase MST includes three phases, each of which considers the servicing process as three simple MST with its own parameters. Key performance indicators are calculated based on the specified parameters.
The modeling results allow us to identify "bottlenecks" at a specific phase, which helps to increase the efficiency of servicing freight cars located in TM by 18 %. The proposed optimization methods confirm the possibility of increasing throughput by 15–20 %. The practical significance of the work lies in recommendations for the modernization of TM, and further research will focus on the simulation modeling of the processes of a multi-phase technical maintenance system.
About the Author
G. A. Bubnova
Ural State University of Railway Transport (USURT)
Russian Federation
Russian Federation
Bubnova Guzal Arsenovna, Chair “Cars and Car Facilities”, Candidate of Engineering Sciences, Associate Professor
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Review
For citations:
Bubnova G.A. Assessment of the performance of a multi-phase system for maintenance and repair of freight cars. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(3):54-63. (In Russ.) https://doi.org/10.46973/0201-727X_2025_3_54
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