Adapting the load-bearing structure of a gondola car for transporting high-temperature cargoes

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.253770

Keywords:

transport mechanics, load-bearing structure, body load, temperature impact, heat-resistant flatcar

Abstract

This paper determines the load on the load-bearing structure of a universal gondola car during the transportation of cargo with a temperature of 700 °C in it. It has been established that the maximum equivalent stresses, in this case, significantly exceed permissible ones. The maximum temperature of the cargo, at which the strength indicators of the carrying structure of the gondola do not exceed the permissible values, is 94 °C. At the same time, the temperature of the cargo transported in the cars by rail can be much higher. In this regard, in order to use gondola cars for the transportation of cargoes with high temperatures, it is possible to arrange them in heat-resistant containers of open type – flatcars. Therefore, in this study, a structure of the flatcar with convex walls has been proposed. Such configuration of the sidewalls makes it possible to increase the usable volume of the container by 8 % compared to the prototype. As a flatcar material, a composite with heat-resistant properties is used. To justify the proposed solution, the strength of a flatcar was calculated. It has been established that the maximum equivalent stresses in the carrying structure of the flatcar are about 300 MPa and do not exceed permissible ones.

To determine the main indicators of the dynamics of the gondola car loaded with flats, its dynamic load was mathematically modeled. The calculation results showed that the accelerations that operate in the center of the mass of the load-bearing structure of a gondola car are about 1.5 m/s2. The vertical dynamics coefficient is 0.22. The estimated dynamics indicators are within the permissible values.

The study reported here could contribute to improving the efficiency of the use of gondola cars and to further advancements in the design of innovative vehicles

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

Maryna Khara, Pryazovskyi State Technical University

PhD, Associate Professor

Department of Transportation Technologies of Industrial Enterprises

Iryna Nikolaienko, Pryazovskyi State Technical University

PhD, Associate Professor

Department of Technologies of International Transportation and Logistics

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

2022-04-28

How to Cite

Fomin, O., Lovska, A., Khara, M., Nikolaienko, I., Lytvynenko, A., & Sova, S. (2022). Adapting the load-bearing structure of a gondola car for transporting high-temperature cargoes. Eastern-European Journal of Enterprise Technologies, 2(7 (116), 6–13. https://doi.org/10.15587/1729-4061.2022.253770

Issue

Vol. 2 No. 7 (116) (2022): Applied mechanics

Section

Applied mechanics

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Copyright (c) 2022 Oleksij Fomin, Alyona Lovska, Maryna Khara, Iryna Nikolaienko, Andrii Lytvynenko, Sergiy Sova

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