Production and Application of Advanced Composite Materials in Rail Cars Development: Prospect in South African Industry

Ibrahim, Idowu David; Jamiru, Tamba; Sadiku, Rotimi; Kupolati, Williams Kehinde; Mpofu, Khumbulani; Eze, Azunna Agwo; Uwa, Chukwunonso Aghaegbulam

doi:10.1016/j.promfg.2019.05.069

Cited by 7 publications

(7 citation statements)

References 6 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%

“…Features of production and use of modern polymer composite materials in the manufacture of railroad cars are reported in [13]. The study focuses on the development of nanocomposites from recycled polypropylene reinforced with natural fiber.…”

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%

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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

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“…Features of the use of composite materials with improved mechanical properties in the manufacture of aerospace vehicles are highlighted in works [82,83]. The expediency of using composite materials in this field and the prospects for the further development of these issues are substantiated.…”

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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“…Features of production and use of modern polymer composite materials in the manufacture of railway wagons is carried out in the study [5]. The research focuses on the development of nanocomposites from recycled polypropylene reinforced with natural fi ber.…”

Section: Geotechnical and Mining Mechanical Engineering Machine Buildingmentioning

confidence: 99%

Load of the wagon-platform for transportation of bulk cargoes

Fomin¹,

Lovska²,

Fomina³

et al. 2022

Nauk. visn. nat. hirn. univ.

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Purpose. To substantiate the improvement of the load-bearing element of the wagon-platform for the possibility of transporting bulk cargoes. Methodology. In order to be able to transport bulk cargo on the wagon-platform, it is proposed to install a composite boiler module on it. In order to determine the dynamic load of the improved load-bearing structure of the wagon-platform, mathematical modeling was performed. The mathematical model formed by professor Bohomaz H.I. was used. However, within the framework of the research this model was refined to determine the load of the wagon-platform of the proposed design. The solution of the system of differential equations is carried out in the MathCad software package. To do this, the mathematical model was reduced to the normal Cauchy form, and then integrated by the Runge-Kutta method. The obtained acceleration is taken into account when calculating the strength of the advanced load-bearing structure of the wagon-platform. The calculation is performed in the SolidWorks Simulation software package, which implements the finite element method. Also, within the research the modal analysis of a load-bearing structure of the wagon-platform is carried out. Findings. Based on the calculations, it is established that the acceleration acting on the load-bearing structure of the wagon-platform car is 0.38 g, i.e. it is within acceptable limits. The results of the calculation of the strength of the improved design of the wagon-platform showed that the maximum equivalent stresses occur in the area of interaction of the spine beam frame with the pivot and is about 340 MPa, the maximum displacement made 8.6 mm. That is, the obtained stresses do not exceed the yield strength of the structural material. The results of the modal analysis showed that the values of the natural frequencies of oscillations are within acceptable limits, because the first natural frequency has a value greater than 8 Hz. Originality. The scientific substantiation of improvement of a load-bearing structure of a universal wagon-platform to transportations of bulk cargoes is carried out. Practical value. The conducted research will promote increase in efficiency of operation of railway transport and creation of developments concerning planning of innovative designs of a rolling stock.

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Production and Application of Advanced Composite Materials in Rail Cars Development: Prospect in South African Industry

Cited by 7 publications

References 6 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

Temperature effects on railway rolling stock components

Load of the wagon-platform for transportation of bulk cargoes

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