Study of safety indicators and technical condition of rolling stock by mobile systems
Keywords:
Freight cars, running tests, traffic quality and safety indicators, dynamic processes, stability, mobile system, dynamics, softwareSynopsis
The organization of the movement of freight trains in Ukraine is an important factor in the integration of the country's railway transport into the European system. Currently, a situation has arisen that requires a significant renewal of the freight car park with modern cars to meet the requirements of freight transportation. Also, a significant drawback of railway transport of Ukraine is the limitation of the speed of trains, which include freight cars with a reduced container in an empty state, therefore, at the moment, the issue of improving the methodological and software and instrumental testing tools for evaluating the quality and safety indicators of the movement of such cars is relevant at the moment .
Subsection 1.1 offers methods and approaches for assessing quality indicators, traffic safety, and the technical condition of cars. The first method of measuring mechanical stresses in the surface layers of elements of load-bearing structures of rolling stock by the method of tensometry. The second method of measuring contact forces: due to the deformation of the discs of the wheels of the wheel pairs.
Subsection 1.2 proposes a method of in-depth processing of the results of road tests of rolling stock is proposed. The essence is to perform a spectral analysis of dynamic processes for various elements of the load-bearing structures of the freight car, with the aim of identifying the relationships between the oscillatory processes of the load-bearing structures and the frequencies at which the interaction between them occurs.
Subsection 1.3 forms and implements the general requirements for the mobile system for determining the quality and safety indicators of the movement of freight cars with reduced containers in operation were formed and implemented. This mobile system allows running tests without involving the laboratory car, which reduces costs and time for conducting such tests by 25.8%. A method of in-depth processing of the results of road tests of rolling stock is proposed.
Subsection 1.4 formulates the general requirements for the software and hardware complex for determining the dynamic load of running parts under the conditions of operation of rolling stock. Technical solutions have been implemented regarding the means of running tests of rolling stock to determine the dynamic loading of running parts in operating conditions, which increases the effectiveness of forecasted assessments and increases the efficiency of testing.
A set of software subsystems for collecting measurement information, determining movement smoothness and safety indicators of rolling stock according to simplified schemes has been developed.
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Pages
29-63
Published
December 31, 2024
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Copyright (c) 2024 Oleksij Fomin, Pavlo Prokopenko, Mariia Miroshnykova, Gregori Boyko, Andriy Klymash
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978-617-8360-05-4
How to Cite
Fomin, O., Boyko, G., Prokopenko, P., Miroshnykova, M., & Klymash, A. (2024). Study of safety indicators and technical condition of rolling stock by mobile systems. In O. Fomin (Ed.), ASSESSMENT OF TECHNICAL CONDITION: MEANS OF MEASUREMENT, SAFETY, RISKS (pp. 29–63). Kharkiv: TECHNOLOGY CENTER PC. https://doi.org/10.15587/978-617-8360-05-4.ch2
