Temat: railway stock - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Perspective method to guarantee the reliability for the rolling stock of the railway
Autorzy:: Golybenko, A.
Gubacheva, L.
Andreev, A.
Mokrousov, S.
Shcherbakov, V.
Powiązania:: https://bibliotekanauki.pl/articles/374447.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: niezawodność
tłumik cierny
pojazd szynowy
kolej
reliability
friction damper
rolling stock
railway
Opis:: The design method how to increase the reliability of the railroad underframe frictional dampers has been given. The new design for frictional wedge has been suggested, it helps to decrease both the wear of friction wedge and the deterioration of the connected with shpinton sleeve.
Źródło:: Transport Problems; 2012, 7, 4; 33-37
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Simulation modelling of Vitória-Minas closed-loop rail network
Modelagem de simulação do circuito fechado da ferrovia Vitória Á Minas
Autorzy:: Faria, C. H. F. de
Cruz, M. M. da Costa
Powiązania:: https://bibliotekanauki.pl/articles/375477.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: railway
simulation
closed loop
heavy haul
transportation of iron ore
rolling stock
kolej żelazna
symulacja
pętla zamknięta
transport rud żelaza
tabor kolejowy
Opis:: This paper presents a closed loop simulation model that represents the mining logistics chain of the Vitória Minas Railway (VMR), Brazil. The simulator includes the loading process, circulation of loaded trains, unloading of ores for external and internal markets and the distribution of empty trains for new loads. General cargo and passengers trains are also included in the model, which, along with the queues formed in the circulation and the preventive and corrective maintenance of rolling stock, tracks and equipment, interfere with the transportation of iron ore. The primary objective of the iron ore transport is to meet the daily loading and unloading schedules and minimize queues by maximizing the operations at the loading and unloading points. The VMR simulator developed uses macro-mesoscopic approach with Monte Carlo simulation. To validate the simulator, we used actual data of the railway and compared with reality. We obtained a very good adhesion to the value of 2.9% for the validation scenario (Scenario 1) and 3.4% for the scenario with reducing the number of lots of wagons (Scenario 2). We concluded with this simulation that it is possible to reduce the number of GDE wagons without reducing the current level of productivity of the rail system.
Este artigo apresenta o modelo de simulação do circuito fechado da rede logística de minério de ferro da ferrovia Vitória Á Minas (VMR), Brasil. O simulador inclui o processo de carregamento, circulação dos trens carregados, descarregamento para os mercados externos e internos e a distribuição dos trens vazios para novos carregamentos. Os trens de carga geral e de passageiros também foram incluídos no modelo, bem como suas filas de formação e as manutenções preventivas e corretivas do material rodante, que interferem no transporte do minério de ferro. O principal objetivo do transporte de minério de ferro é atender as programações de carregamento e descarregamento e minimizar as filas maximizando as operações nos pontos de carregamento e descarregamento. O simulador VMR desenvolvido utiliza uma abordagem macro-mesoscópica de simulação de Monte Carlo. Para validar o simulador, foi utilizado dados da ferrovia e comparado com a realidade. Obtivemos uma aderência muito de 2,9% para o cenário de validação (cenário 1) e 3,4% para o cenário com a redução do número de lotes de vagão (cenário 2). Concluímos que com esta simulação é possível reduz o número de lotes de vagões GDE sem reduzir a produtividade da ferrovia.
Źródło:: Transport Problems; 2015, T. 10, z. spec.; 125-139
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Study of traction rolling-stock using in Lithuanian sector of railway line "Rail Baltica"
Autorzy:: Bureika, G.
Powiązania:: https://bibliotekanauki.pl/articles/374441.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: linia kolejowa "Rail Baltica"
sprawność taboru kolejowego
koszty eksploatacji
metody wielokryterialnej oceny
railway line Rail Baltica
freight diesel locomotives
rolling-stock efficiency
operation costs
multicriteria evaluation methods
Opis:: The article analyses the current traction rolling-stock used by „Lietuvos geležinkeliai“ Plc. for freight transportation. The technical data of the above mentioned rolling-stock is explored and compared, and operation costs are estimated in the article. After the assessment of the forecasts of freight flows on the constructed railway „Rail Baltica“, the algorithm for selection of freight locomotives was proposed. The efficiency of the locomotives operated on the railway is determined by three multicriteria evaluation methods: the sum of ratings, simple additive weighting, and the geometric mean method. Locomotives are valued in accordance with technical, economic and ecological parameters. The results of possible effective performance of the rolling stock have been determined by changing coefficient values of the criteria. Finally, basic conclusions are given.
Źródło:: Transport Problems; 2012, 7, 4; 49-56
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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