Model Approaches to Estimation of Lifetime of Supporting Machines in Terms of an Open Pit Mine in Serbia
D. J. Krunic1, S. Vujic2, M. Tanasijevic3, B. Dimitrijevic3, T. Shubaranovic3, S. Ilic3, S. Maksimovic2
1Ministry of Mining and Energy of the Republic of Serbia, Belgrade, Serbia
2Mining Institute Ltd. Belgrade, Belgrade, 11080 Serbia
3University of Belgrade, Belgrade, 11000 Serbia
Keywords: Жизненный цикл машины, надежность, расходы, принятие решений, бульдозер, угольный бассейн “Колубара”, Machine lifetime, reliability, expenses, decisions made, bulldozer, Kolubara Coal Basin
Abstract
Two model approaches to estimation of lifetime of supporting mining machines are described, one of which is based on the theory of reliability and the other-on the principle of cost. While on service, reliability of machines reduces and operating cost grows. These indexes of opposite trends define machine serviceability, and make a framework for decision-making on the expediency of further operation, maintenance or replacement of machines. In terms of bulldozer as one of the most high-usage machines in supporting operations in open pit mines of the Electric Power Industry of Serbia, the application of both model approaches is compared, as well as the estimations and conclusions are made.
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