The analysis of structure of the repaired freight wagon

Kosobudzki, Mariusz; Jamroziak, Krzysztof; Bocian, Mirosław; Kotowski, Piotr; Zając, Paweł

doi:10.1063/1.5066492

Cited by 9 publications

(10 citation statements)

References 4 publications

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“…In contrast to [1,5], which proposed the modernization of the designs of cars to improve the efficiency of rail transportation, our results make it possible to ensure the multi-functionality of the car. This becomes possible due to its adaptation to the transportation of high-temperature cargoes.…”

Section: Justification Of Measures To Adapt the Load-bearing Structur...mentioning

confidence: 78%

“…The possibility of modernization of the freight car by using composite panels in its components is analyzed in [5]. The expediency of introducing the proposed solution into the load-bearing structure of the car is substantiated.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Our review of literary sources [1][2][3][4][5][6][7][8][9][10] allows us to conclude that the issues related to determining the temperature impact on the bearing structures of freight cars and their adaptation to the transportation of high-temperature cargoes are quite relevant. This necessitates research in this area to devise appropriate measures that would contribute to improving the efficiency of the operation of freight cars.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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

Fomin

Lovska

KHARA

et al. 2022

EEJET

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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

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Section: Justification Of Measures To Adapt the Load-bearing Structur...mentioning

confidence: 78%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

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

Fomin

Lovska

KHARA

et al. 2022

EEJET

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“…The publication [60] provides the feasibility for the use of composite panels in the modernization of freight car bodies. The advantages of the proposed = 30 = modernization and prospects of its further development on narrow gauge cars are noted.…”

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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“…Also, they showed that the proposed arrangement reduces the unfavorable influence of the mechanical reaction of the joining elements on the values of stresses in the outer layers of the composite material. Kosobudzki et al [7] proposed also the increase of the stiffness of the load space walls in a freight wagon body by using composite panels. They analyzed the mechanical behavior in the combination steel sheet and glass-epoxy composite for two types of connection between the two materials: screwed and with adhesive.…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis of a Freight Wagon with Composite Walls

Patrascu¹,

Hadăr²,

Pastramă³

2019

Mater. Plast.

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The paper presents a numerical study regarding the mechanical response of the body of a freight wagon to the usual loads encountered during service. The main goal of the present research is to investigate the possibility to replace the steel walls of the wagon with walls made of laminated composites. In this way, the total mass of the wagon can be decreased, leaving room for supplementary load of goods. Finite element analyses of the wagon with steel walls is presented first, in order to show that most of the load is taken by the structure of the wagon, while the stresses in the walls are low. Further, composite plates with different thickness are studied to find the minimum value of thickness for which the displacements have values below a certain range. These thicknesses are further considered in the finite element analyses of the entire wagon with composite walls to investigate if the new walls significantly change the stresses in the vehicle structure. It was concluded that the replacement does not alter the stress state in the structure, and, consequently, it is a good solution for diminution of the total mass of the vehicle.

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The analysis of structure of the repaired freight wagon

Cited by 9 publications

References 4 publications

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

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

Temperature effects on railway rolling stock components

Structural Analysis of a Freight Wagon with Composite Walls

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