Substantiating the optimization of the load-bearing structure of a hopper car for transporting pellets and hot agglomerate

Fomin, Oleksij; Lovska, Alyona; Skliarenko, Inna; Klochkov, Yurii

doi:10.15587/1729-4061.2020.193408

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…It is taken into account that the load-bearing structure is acted upon by the vertical load Р v , the expansion forces of the bulk cargo Р e . The front stops of the automatic coupler are affected by the longitudinal load P l , which is due to the driving mode [28,29]…”

Section: Results Of Determining the Strength Indicators Of The Load-bmentioning

confidence: 99%

Study of Loading of the Load-Bearing Structure of Hopper Wagons on Y25 Bogies

et al. 2021

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To increase the efficiency of using railway transport, the possibility of using new designs of bogies, for example, Y25 under "wide gauge" wagons was considered. In order to substantiate the proposed solution, mathematical modeling of the dynamic loading of the hopper wagon Y25 bogies was carried out. A hopper wagon for the transportation of pellets and hot sinter model 20-9749 built by the State Enterprise "Ukrspetsvagon" (Ukraine) was chosen as a prototype. The simulation results showed that the use of Y25 bogies for hopper wagons allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 36 %. Other performance indicators are also significantly improved. The use of Y25 bogies for hopper wagons with actual parameters allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 28 %. The determination of the main indicators of the strength of the bearing structure of the hopper wagon Y25 bogie was carried out. The calculation was carried out in the SolidWorks Simulation software package (CosmosWorks), (France), which implements the finite element method. The calculations showed that the maximum equivalent stresses in the load-bearing structure of a hopper wagon with nominal parameters are 17 % lower than the stress acting in the load-bearing structure of a wagon on bogies 18–100 V of the load-bearing structure of a hopper wagon with actual parameters, the maximum equivalent stresses are 12 % lower per voltage in the load-bearing structure on bogies 18100. The conducted research will help to reduce the load on the load-bearing structures of hopper wagons in operation, improve the dynamics and strength indicators, as well as their service life

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Section: Results Of Determining the Strength Indicators Of The Load-bmentioning

confidence: 99%

Study of Loading of the Load-Bearing Structure of Hopper Wagons on Y25 Bogies

et al. 2021

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“…Особливості удосконалення кузова вагона-хопера шляхом використання труб круглого перерізу у якості складових елементів конструкції висвітлюється в роботі [8]. Наведені результати математичного та комп'ютерного моделювання навантаженості несучої конструкції вагона-хопера, які підтвердили доцільність запропонованого рішення.…”

Section: аналіз останніх досліджень та публікаційunclassified

Analysis of the strength of the frame of a two-section hopper car with a closed center beam design

Fomin¹,

Lovska²

2022

Mech. Adv. Technol.

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Background. Ensuring the profitability of rail transportation and maintaining their leadership positions necessitates the commissioning of promising rolling stock designs. Such rolling stock should not only have improved technical and economic indicators, but also ensure the minimization of empty runs. Therefore, the creation of promising designs of rolling stock, designed for the simultaneous transportation of different types of cargo, is a very topical issue. Objective. Illumination of the results of determining the strength of the frame of a two-section hopper car with a closed center beam design under the main operating modes of loading. Methods. In order to reduce the material consumption of the frame of the hopper car, the optimization method for safety reserves was used. For this purpose, the strength of a typical frame of a hopper car was calculated using the finite element method implemented in the SolidWorks Simulation software package. To reduce the material consumption of the hopper car frame, it is proposed to use a rectangular profile for the center sill. Results. The use of a rectangular profile for the center beam of the hopper car frame is substantiated. At the same time, it becomes possible to reduce its weight by 2.3% compared to the standard version. The results of calculations for the strength of the hopper car frame showed that the maximum equivalent stresses in it are 341.5 MPa and do not exceed the permissible values. Conclusions. The conducted research will contribute to the creation of developments in the design of advanced rolling stock structures, as well as to increase the efficiency of railway transport operation.

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“…Вип. 0 ТЕХНІКА І ТЕХНОЛОГІЇ програмному комплексі SolidWorks Simulation [15]. При складанні скінчено-елементної моделі вагона-хопера використані ізопараметричі тетраедри.…”

Section: рис 4 прискорення які діють на несучу конструкцію вагона-хоп...unclassified

Investigation of Loading Structure of Hyper-Hopper Two-Section Carrier During Carriage by Railway

Fomin¹,

Lovska²

2022

TST

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To increase the efficiency of operation of the hopper car, it is proposed to improve it by dividing the body into two separate sections, which facilitates the possibility of transporting different types of cargo. In order to adapt the hopper car for transportation on railway ferries in international traffic, it is proposed to install on its pivot beams knots for fastening chain ties. Determination of the dynamic load of the load-bearing structure of the hopper car was performed by mathematical modeling. The case of the on-board rocking of the railway ferry is taken into account. The solution of the mathematical model is implemented in the MathCad software package. The total amount of acceleration acting on the supporting structure of the hopper car was 2.4 m/s2 (0.24 g). The obtained value of acceleration is taken into account when calculating the strength of the load-bearing structure of the hopper car. The calculation was performed by the finite element method in the SolidWorks Simulation software package. The results of the calculations established that the maximum equivalent stresses are 312.3 MPa and occur in the node for fixing. However, they do not exceed the allowable values. The conducted researches will promote increase of efficiency of operation of hopper cars, and also creation of developments concerning designing of their perspective designs.

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Substantiating the optimization of the load-bearing structure of a hopper car for transporting pellets and hot agglomerate

Cited by 5 publications

References 12 publications

Study of Loading of the Load-Bearing Structure of Hopper Wagons on Y25 Bogies

Study of Loading of the Load-Bearing Structure of Hopper Wagons on Y25 Bogies

Analysis of the strength of the frame of a two-section hopper car with a closed center beam design

Investigation of Loading Structure of Hyper-Hopper Two-Section Carrier During Carriage by Railway

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