Development and analysis of a new technology of freight cars modernization

Buchacz, A.; Baier, Annett; Płaczek, Marek; Herbuś, Krzysztof; Ociepka, Piotr; Majzner, Michał

doi:10.21595/jve.2018.19206

Cited by 7 publications

(9 citation statements)

References 15 publications

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“…The merit of our study in comparison with works [1-3] is that we have proposed a model that makes it possible to determine the load on the car under different operating modes and types of transported cargoes. Unlike [4][5][6][7], the proposed measures for the structural execution of the car contribute to ensuring its versatility. Our structural solutions could be used to modernize freight cars, unlike those described in [8,9].…”

Section: Discussion Of Results Of Analyzing the Load On The Boiler Of...mentioning

confidence: 99%

“…The justification for the modernization of freight cars is considered in [7]. In this case, modernization is proposed to be carried out during periodic types of repair of cars.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Our review of literary sources [1][2][3][4][5][6][7][8][9][10][11] reveals that it is expedient to conduct research into the possibility of designing a multifunctional structure of the car for the transportation of a wide range of cargoes. This will help construct competitive high-efficiency rolling stock and contribute to improving the efficiency of rail transportation.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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

Fomin¹,

Lovska

Lytvynenko

et al. 2022

EEJET

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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.

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Section: Discussion Of Results Of Analyzing the Load On The Boiler Of...mentioning

confidence: 99%

“…The justification for the modernization of freight cars is considered in [7]. In this case, modernization is proposed to be carried out during periodic types of repair of cars.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

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

Fomin¹,

Lovska

Lytvynenko

et al. 2022

EEJET

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show abstract

“…Friction forces between fittings and fitting stops were not taken into account. The material of the supporting structure of the platform car and containers is the steel of grade 09G2 [29]. The model was fixed in the zones of support of the supporting structure of the platform car on bogies [30,31].…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

Revealing the effect of structural components made of sandwich panels on loading the container transported by railroad

Vatulia

Lovska

Myamlin

et al. 2023

EEJET

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The object of this study is the processes of emergence, perception, and redistribution of loads in the supporting structure of a 1CC size container with end walls made of sandwich panels. To reduce the longitudinal load of the container under operational modes, the introduction of sandwich panels into its design is proposed. This solution is implemented on the example of its end walls as the most loaded component of the body in operation. The thickness of the sandwich panel sheet was determined, provided that the strength in operation is ensured. Mathematical modeling of dynamic load of a container with end walls made of sandwich panels placed on a platform car during shunting co-impact was carried out. It was established that taking into account the proposed improvement makes it possible to reduce the dynamic loads that the container perceives by 10 % compared to the typical structure. The results were confirmed by computer simulation of the dynamic load of the container. The models formed within the framework of the study were verified according to the F-criterion. The results of calculations for the strength of the container showed that the stresses in its structure are 15 % lower than those in the typical one. A feature of the findings is that the proposed improvement of the container helps improve its strength in operation by reducing the loads acting on it. The scope of practical use of the results is the engineering industry, namely, railroad transport. At the same time, the conditions for the practical application of the research results are the introduction of energy-absorbing material as a component of the sandwich panel. This study will contribute to devising recommendations for designing modern structures of vehicles of a modular type and for improving the efficiency of the transport industry

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“…The authors in their work [71] proposed a method for extending the service life of cars in order to further re-equipment of them for transportation of the specified range of cargoes. The results of the calculations confirmed the feasibility of the proposed measures.…”

Section: Analysis Of Literature Sources To Determine the Temperature ...mentioning

confidence: 99%

Temperature effects on railway rolling stock components

Fomin¹,

Lovska²

2022

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The purpose of the book is to highlight the features of temperature effects on the components of railway rolling stock and to create measures to improve the efficiency of its operation. Theoretical provisions, methodological bases and practical decisions on determination of temperature influence on components of rolling stock of railways at operational modes of loading are provided. The monograph is intended for scientific and technical specialists whose activities are related to the design and study of mechanics of rolling stock structures, including scientists, designers, designers, researchers, doctoral students and graduate students. The monograph can be used as a textbook for undergraduates and bachelors in relevant specialties.

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Development and analysis of a new technology of freight cars modernization

Cited by 7 publications

References 15 publications

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

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

Revealing the effect of structural components made of sandwich panels on loading the container transported by railroad

Temperature effects on railway rolling stock components

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