Simulation modelling of Vitória-Minas closed-loop rail network

• Autorzy: Faria C. H. F. de , Cruz M. M. da Costa

Warianty tytułu

PT

Modelagem de simulação do circuito fechado da ferrovia Vitória Á Minas

• Języki publikacji: EN

Abstrakty

EN

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.

PT

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.

Słowa kluczowe

EN

railway; simulation; closed loop; heavy haul; transportation of iron ore; rolling stock

PL

kolej żelazna; symulacja; pętla zamknięta; transport rud żelaza; tabor kolejowy

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Transport Problems
• Rocznik: 2015
• Tom: T. 10, z. spec.
• Strony: 125--139
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Faria C. H. F. de

• Federal University of Espirito Santo, Av. Fernando Ferrari, 514 - Goiabeiras, Vitória - ES, 29075-910, Espírito Santo, Brazil

autor

Cruz M. M. da Costa

• Federal University of Espirito Santo, Av. Fernando Ferrari, 514 - Goiabeiras, Vitória - ES, 29075-910, Espírito Santo, Brazil

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