The paper discusses the theoretical concept and illustrates the practical application of models with limited interval based on dynamic programming, suitable for optimization of exploitation life of mining machinery that have a shorter life cycle such as: bulldozers, scrapers, dumpers, excavators equipped by a smaller capacity operating element, as well as some others machinery. | Yugoslav Journal of Operations Research Volume 20 (2010), Number 1, 25-34 MANAGING THE EXPLOITATION LIFE OF THE MINING MACHINERY FOR A LIMITED DURATION OF TIME Slobodan VUJIĆ1, Radoslav STANOJEVIĆ, Vencislav IVANOV2, Borislav ZAJIĆ1, Igor MILJANOVIĆ1, Svetomir MAKSIMOVIĆ3, Stefko BOŠEVSKI4, Tomo BENOVIĆ5, Marjan HUDEJ6 1) Faculty of Mining and Geology, University of Belgrade, Mining and Geology University ''St. Ivan Rilski'' Sofia, 3) Electric Power Industry of Serbia, Belgrade, 4) Rudproekt – Skopje, 5) Mine and Thermal Power Plant, Ugljevik,6) MCP Velenje, Slovenia, 2) Received: January 2009 / Accepted: April 2010 Abstract: The paper discusses the theoretical concept and illustrates the practical application of models with limited interval based on dynamic programming, suitable for optimization of exploitation life of mining machinery that have a shorter life cycle such as: bulldozers, scrapers, dumpers, excavators equipped by a smaller capacity operating element, as well as some others machinery. Keywords: Operations research, dynamic programming, machinery exploitation life, management, decision making, optimization, bulldozers, dumpers, scrapers, excavators. 1. INTRODUCTION In achieving profitable production as a target task, the contemporary mining finds its main support in both production equipment and machinery. The operating efficiency of mining machinery depends on reliability of its functioning, technicaltechnological performances, handling, (management) maintenance, logistic support, adaptability – adjustment relations between machinery and properties of environment, etc. Regardless of the construction and construction quality, exploitation management and maintenance, no failure machinery exists. The consequences of machinery failure have direct negative economic effects through production losses, repair costs as well as eventual losses resulting from stopping the work of other machineries within the conditioned technological .
