Determining the features of loading the bearing structure of a multifunctional car under operating modes

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.258201

Keywords:

transport mechanics, railroad car, load-bearing structure, composite material, structure load

Abstract

This paper substantiates the modernization and commissioning of a railroad car for high-temperature, bulk/loose cargoes in order to improve the efficiency of railroad transportation. A feature of the car is the presence of an open-type boiler, which is made of heat-resistant material. To prevent splashing of transported cargo, it is possible to use a removable cover, which is attached to the top of the boiler.

The boiler of the car was calculated for strength under the main operating modes. The vertical load on the boiler was taken into consideration while accounting for the transportation of bulk cargo, as well as longitudinal, and the effect of temperature load. The strength was calculated by the method of finite elements. It is taken into consideration that the boiler is made of composite heat-resistant material. The calculation results showed that with the considered load modes, the strength of the boiler is ensured.

The dynamic load of the boiler was mathematically modeled at car shunting. The calculation was performed in a flat coordinate system. Solving the mathematical model of the car dynamic load has established that the maximum acceleration that acts on the boiler is 36.5 m/s2.

The dynamic load of the boiler was simulated. The dislocation fields and numerical values of accelerations that act on it were determined. The maximum acceleration, in this case, is concentrated in the bottom of the boiler; it is 37.4 m/s2.

To verify the dynamic load model, the F-criterion was used for calculation. It has been established that the hypothesis about the adequacy of the model is confirmed.

The study reported here could contribute to improving the efficiency of railroad transport operation and advancing the design of multifunctional car structures.

Author Biographies

Oleksij Fomin, State University of Infrastructure and Technologies

Doctor of Technical Sciences, Professor

Department of Cars and Carriage Facilities

Alyona Lovska, Ukrainian State University of Railway Transport

Doctor of Technical Sciences, Associate Professor

Department of Wagon Engineering and Product Quality

Andrii Lytvynenko, Volodymyr Dahl East Ukrainian National University

Postgraduate Student

Department of Railway, Road Transport and Handling Machines

Sergiy Sova, Volodymyr Dahl East Ukrainian National University

Postgraduate Student

Department of Railway, Road Transport and Handling Machines

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Published

2022-06-30

How to Cite

Fomin, O., Lovska, A., Lytvynenko, A., & Sova, S. (2022). Determining the features of loading the bearing structure of a multifunctional car under operating modes . Eastern-European Journal of Enterprise Technologies, 3(7(117), 6–13. https://doi.org/10.15587/1729-4061.2022.258201

Issue

Vol. 3 No. 7(117) (2022): Applied mechanics

Section

Applied mechanics

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Copyright (c) 2022 Oleksij Fomin, Alyona Lovska, Andrii Lytvynenko, Sergiy Sova

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