Design of a new railway wagon for intermodal transport with the adaptable loading platform

Šťastniak, Pavol; Kurčík, Pavol; Pavlík, Alfréd

doi:10.1051/matecconf/201823500030

Cited by 32 publications

(25 citation statements)

References 13 publications

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“…Article [ 12 ] presents the structural design of the freight railway wagon with variable use of loading space with regard to the safe operation and assessment of the properties by the calculation methods of simulation analysis. Based on computer-aided simulation analysis, they optimized the chassis frame of the wagon.…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

et al. 2021

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The study deals with an application of aluminum foam as an energy-absorbing material for the carrying structure of a rail car. The material is particularly recommended for circular tube carrying structures. The authors conducted mathematical modeling of dynamic loads on the carrying structure of an open wagon that faces shunting impacts with consideration of the center sill filled with aluminum foam. It was established that the maximum accelerations on the carrying structure of an open wagon were 35.7 m/s2, which was 3.5% lower in comparison with those for a circular tube structure without a filler. The results obtained were proved by computer modeling. The strength of the carrying structure of an open wagon was also calculated. It was established that aluminum foam applied as a filler for the center sill decreased the maximum equivalent stresses in the carrying structure of an open wagon by about 5% and displacements by 12% in comparison with those involving the circular tube carrying structure of an open wagon without a filler. The natural frequencies and the oscillation modes of the carrying structure of an open wagon were defined. The designed models of the dynamic loading of the carrying structure of an open wagon were verified with an F-test.

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Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

et al. 2021

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“…The strength of the load-bearing structure of a freight wagon with variable use of cargo space was analyzed in work [1]. In order to reduce the fatigue strength of the frame of the wagon and increase cargo space, the authors proposed removing the girder beam of the frame.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Establishing patterns in the dynamic loading on the body of a semiwagon with an elastic middle part of the girder beam

Fomin¹,

Lovska²,

Medvediev³

et al. 2020

EEJET

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To reduce the dynamic loading and prolong the service life of a semi-wagon's girder beam by improving its fatigue strength, it has been proposed to improve its design. A special feature of the girder beam is that its middle part (the distance between the rear supports of auto-couplings) consists of a U-shaped profile, covered with a horizontal sheet above which an I-beam is located. Elastic elements are placed between the horizontal part of the U-shaped profile's shelf and the sheet. Mathematical modeling was performed to substantiate the proposed technical solution. A mathematical model has been constructed describing the fluctuations of the bouncing wagon. It has been established that the maximum vertical acceleration of the body is about 1.8 m/s 2 (0.18 g), and of the bogieabout 9.0 m/s 2 (0.9 g). Based on our calculations, we can conclude that a wagon's movement is assessed as "excellent". In this case, the use of the girder beam with elastic links makes it possible to reduce the dynamic load on a wagon, in comparison with the prototype, by almost 35 %. The main indicators of the strength of the improved load-bearing structure of a wagon have been determined. The maximum equivalent strains occur, in this case, in the upper horizontal sheet of the girder beam, and are 136.0 MPa, which are lower, by 20 %, than those of the prototype wagon. The results of the modal analysis of the load-bearing structure of a semi-wagon taking into consideration the improvement measures have demonstrated that their natural frequencies of oscillations are within the permissible limits. Our research could help reduce the dynamic loading on the load-bearing structures of wagons in operation, as well as design the innovative structures of rolling stock

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“…The features of designing a railroad car for intermodal transportation, equipped with an adapted loading platform, were examined in [4]. The adopted structural solutions were substantiated by the static and dynamic studies in the ANSYS and ADAMS/Rail software packages.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Our analysis of the scientific literature [1][2][3][4][5][6][7][8] makes it possible to conclude that the issues related to loading the bearing structures of wagons when transporting military equipment and when firing from them during motion have not been addressed up to now. Therefore, it is an important task to undertake relevant studies in this field aimed at improving the efficiency of using wagons for military strategic activities.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining the features of loading the improved bearing structure of a platform wagon for the transportation of military equipment

Lovska

Fomin

Chechet

et al. 2020

EEJET

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Проведено удосконалення несучої конструкцiї вагона-платформи для перевезення вiйськової технiки та ведення вогняної дiї. Особливiстю вагона-платформи є наявнiсть поворотних секторiв з композитного матерiалу з в'язкими або пружно-в'язким зв'язками, що дозволяє поглинати кiнетичну енергiю, яка передається на раму при веденнi вогню з вагону, а також дає можливiсть здiйснювати бокове завантаження/вивантаження вiйськової технiки. Дослiджено динамiчну навантаженiсть несучої конструкцiї вагона-платформи для перевезення вiйськової технiки та ведення бойової дiї. Складено математичну модель, яка враховує перемiщення несучої конструкцiї вагона-платформи при веденнi з нього вогняної дiї. Враховано, що вагон-платформа завантажений двома зенiтними установками. Розв'язок математичної моделi здiйснений в програмному середовищi MathCad. Дослiдження проведенi у плоскiй системi координат. Визначено прискорення, якi дiють на несучу конструкцiю вагона-платформи. Максимальна величина прискорення при цьому складає близько 3,6 м/с 2 при коливаннях пiдскакування та 4,0 м/с 2 при коливаннях галопування. Тобто з урахуванням запропонованих технiчних рiшень динамiчна навантаженiсть несучої конструкцiї вагона-платформи у вертикальнiй площинi при пострiлi зменшується майже на 30 %. При цьому величина прискорення майже не залежить вiд кута пострiлу. Отриманi величини прискорень врахованi при визначеннi показникiв мiцностi несучої конструкцiї вагона-платформи. Розрахунок проведено за методом скiнчених елементiв в програмному середовищi CosmosWorks. Максимальнi еквiвалентнi напруження в несучiй конструкцiї вагона-платформи склали близько 285 МПа та зосередженi у зонi обпирання несучої конструкцiї на вiзки. Отже мiцнiсть несучої конструкцiї вагона-платформи забезпечується. Проведений модальний аналiз несучої конструкцiї вагона-платформи. При цьому значення власних частот коливань знаходяться в межах допустимих. Проведенi дослiдження сприятимуть створення iнновацiйних конструкцiй вагонiв-платформ Ключовi слова: вагон-платформа, несуча конструкцiя, динамiчна навантаженiсть, модальний аналiз, комбiнованi перевезення

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Design of a new railway wagon for intermodal transport with the adaptable loading platform

Cited by 32 publications

References 13 publications

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

Establishing patterns in the dynamic loading on the body of a semiwagon with an elastic middle part of the girder beam

Determining the features of loading the improved bearing structure of a platform wagon for the transportation of military equipment

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Design of a new railway wagon for intermodal transport with the adaptable loading platform

Cited by 32 publications

References 13 publications

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

Dynamics and Strength of Circular Tube Open Wagons with Aluminum Foam Filled Center Sills

Establishing patterns in the dynamic loading on the body of a semi­wagon with an elastic middle part of the girder beam

Determining the features of loading the improved bearing structure of a platform wagon for the transportation of military equipment

Contact Info

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Establishing patterns in the dynamic loading on the body of a semiwagon with an elastic middle part of the girder beam