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Creation of conceptual solutions for the manufacture of component freight wagons from composites

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Authors:


O.V.Fomin*1, orcid.org/0000-0003-2387-9946, The State University of Infrastructure and Technologies, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.M.Fomina2, orcid.org/0000-0002-9810-8997, Volodymyr Dahl East Ukrainian National University, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.M.Turpak3, orcid.org/0000-0003-3200-8448, “Zaporizhzhia Polytechnic” National University, Zaporizhzhia, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.O.Padchenko3, orcid.org/0000-0002-5262-2755, “Zaporizhzhia Polytechnic” National University, Zaporizhzhia, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e­mail: e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2023, (5): 102 - 107

https://doi.org/10.33271/nvngu/2023-5/102



Abstract:



Purpose.
To present the results on the possibility of increasing the efficiency of the use of the operated fleet of freight wagons by creating conceptual solutions for the manufacture of their component load-bearing systems from composites.


Methodology.
To increase the efficiency of using the operating fleet of freight wagons measures are offered on the development of conceptual solutions for the manufacture of their components load-bearing systems made of composites. In order to determine the possibility of service life of the basic structures of the freight wagons, the methodology given in the works by A. V. Afanasyev was used. To study the dynamic loading of the freight wagon with the actual dimensions of the constituent elements, a calculation was made. At the same time, a mathematical model was used, formed by Professor G. I. Bogomaz, taking into account its adaptation to the determination of the dynamic loading. The vertical loading of the load-bearing structure of the freight wagon was also investigated. In this regard, a mathematical model formed by Professor Yu. V. Demin was used. The accelerations obtained in the simulation of dynamic loading were taken into account when calculating the strength of the basic structure of the freight wagon.


Findings.
It has been established that the design service life of the load-bearing structure of a freight wagon is at least 50 years. The results of determining the longitudinal loading of the basic structures of the freight wagon established that the acceleration acting on it is 37.7 m/s2, and with the vertical one – 5.5 m/s2. The strength calculation of the basic structure of a freight wagon showed that the maximum equivalent stresses are recorded in the zone of interaction of the center beam with the pivot and amount to 333.4 MPa, i.e. do not exceed the permissible values.


Originality.
The feasibility of manufacturing component load-carrying systems of freight wagons from composites is substantiated.


Practical value.
The research carried out will contribute to an increase in the efficiency of the use of railway transport, the transportation process through international transport corridors, as well as the creation of developments in the design of multifunctional car structures.



Keywords:
freight wagon, composite, mechanical engineering, machine building

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ISSN (print) 2071-2227,
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Journal was registered by Ministry of Justice of Ukraine.
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