Modelling and arrangement of composite panels in modernized freight cars

Płaczek, Marek; Wróbel, Andrzej; Olesiejuk, Maciej

doi:10.1051/matecconf/201711206022

Cited by 14 publications

(23 citation statements)

References 9 publications

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“…The advantage of this study compared to [6][7][8][9][10][11][12][13][14][15] is that the model that we built regarding the strength of the load-bearing structure of a hopper car makes it possible to take into consideration the different materials in the components of its load-bearing structure. This makes it possible to improve the strength characteristics of a hopper car compared to the typical structure during operational load modes.…”

Section: Discussion Of Results Of Defining the Peculiarities Of Tempe...mentioning

confidence: 99%

“…Work [15] highlights the features of the use of composite panels in the designs of freight cars. This advancement is proposed to be implemented during the modernization of cars to protect against corrosion damage and facilitate the unloading of cargoes in winter conditions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Our review of literary sources [6][7][8][9][10][11][12][13][14][15] reveals that the issues of improving the strength of vehicles through the introduction of new advanced materials are quite promising and relevant. At the same time, their development in relation to the use in car structures requires further research.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Determining the features of temperature influence on the load-bearing structure of a hopper car with a composite cladding when transporting pellets to metallurgical enterprises

Fomin

Lovska

DZHENCHAKO

et al. 2022

EEJET

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This paper reports the improved load-bearing structure of a hopper car for transporting pellets and hot sinter. In order to increase the strength of the load-bearing structure of a hopper car under the influence of high temperatures from the transported cargo, the use of cladding made of composite material has been proposed. This solution also contributes to a 5 % reduction in the wagon's tare compared to the prototype car. The dynamic load on the load-bearing structure of a hopper car was determined. This study was carried out for the case where an empty wagon was moving over an irregularity between the rail joints. The calculations showed that the studied dynamics indicators did not exceed the permissible values. At the same time, the ride of a hopper car is rated as "excellent". The main indicators of the strength of the carrying structure of a hopper car were determined taking into consideration the proposed improvement. That took into account the temperature effect exerted on the load-bearing structure of a hopper car by hot sinter. It was established that the maximum equivalent stresses occur in the zone of interaction of the girder beam with the pivot beam and are about 290 MPa. At the same time, stresses in the cladding of a hopper car are about 200 MPa, which is 12 % lower than those in a regular structure. Modal analysis was carried out to determine the frequencies and shapes of the natural oscillations of the bearing structure of a hopper car with a composite cladding. The calculation results demonstrated that the first natural frequency exceeds 8 Hz. Therefore, the safety of the wagon is provided. The coefficient of fatigue resistance of the load-bearing structure of a hopper car was calculated. It was established that its value is almost twice as high as the permissible one. That is, the resistance to fatigue of the supporting structure is provided. The research reported here could contribute to ensuring the strength of the load-bearing structures of hopper cars, reducing the cost of maintenance, and increasing the efficiency of their operation.

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Section: Discussion Of Results Of Defining the Peculiarities Of Tempe...mentioning

confidence: 99%

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 temperature influence on the load-bearing structure of a hopper car with a composite cladding when transporting pellets to metallurgical enterprises

Fomin

Lovska

DZHENCHAKO

et al. 2022

EEJET

View full text Add to dashboard Cite

show abstract

“…Features of the use of panels made of composite material on freight cars are analyzed in [9]. The use of panels on railroad cars is proposed to be carried out in such a way that it is possible to modernize the existing rolling stock, and not only in the manufacture of a new one.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Our review of literary sources [6][7][8][9][10][11][12][13][14][15] makes it possible to conclude that the issues of improving vehicles to reduce their tare, as well as dynamic load, require further research and development in order to increase the efficiency of operation of the transportation industry.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Justifying the expediency of using composite components in the long-wheelbase platform car

Fomin¹,

Lovska

Fomina

et al. 2022

EEJET

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This paper reports the improved load-bearing design of a long-wheelbase platform car for the transportation of containers. The improvement involves the construction of a special structure to accommodate fitting stops made from composite material. The design of the add-on structures provides an opportunity to reduce dynamic loads between containers and the platform car at the expense of elastic friction bonds. The dynamic load on the bearing structure of the platform car was determined. To this end, a mathematical model was built that takes into consideration its movement in the vertical plane. The results of resolving the mathematical problem established that the derived values of accelerations were 5.3 % and 6.2 %, respectively, lower than those acting on the platform car and container, taking into consideration the typical scheme of their interaction. To ensure the strength of the add-on structure, the calculation was performed using a finite-element method. It was established that the maximum stresses occurred in the inclined parts of the add-on structure and were 113.6 MPa, which is much lower than the permissible ones. In addition, within the framework of this study, a dynamic load on the improved design of the platform car was determined when it moves empty. The calculation results showed that the defined indicators of dynamics were within the permissible limits while the ride of the platform car was "good". The coefficient of resistance to fatigue of the load-bearing structure of the platform car was determined, taking into consideration the new scheme of interaction with containers. Taking the proposed solutions into account, it becomes possible to increase the resistance coefficient of fatigue of the load-bearing structure of the platform car by 8 % compared to the typical scheme. The study reported here could help reduce the cost of maintaining combined transport vehicles, as well as improve the efficiency of their operation.

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Determination of the transverse load of the box wagon body with sandwich panel walls

Panchenko,

Gerlici,

Lovska

et al. 2024

AIP Conference Proceedings

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Modelling and arrangement of composite panels in modernized freight cars

Cited by 14 publications

References 9 publications

Determining the features of temperature influence on the load-bearing structure of a hopper car with a composite cladding when transporting pellets to metallurgical enterprises

Determining the features of temperature influence on the load-bearing structure of a hopper car with a composite cladding when transporting pellets to metallurgical enterprises

Justifying the expediency of using composite components in the long-wheelbase platform car

Determination of the transverse load of the box wagon body with sandwich panel walls

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