Optimisation of dragline inspection intervals with time-counter algorithm


Golbasi O. , DEMİREL N.

INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT, vol.31, no.6, pp.412-425, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 6
  • Publication Date: 2017
  • Doi Number: 10.1080/17480930.2017.1339168
  • Title of Journal : INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
  • Page Numbers: pp.412-425
  • Keywords: Inspection interval, optimisation algorithm, cost minimisation, mining machinery, dragline, RELIABILITY, MAINTENANCE, SYSTEM

Abstract

This research study proposed a novel algorithm, called time-counter, to optimise inspection intervals of production systems. The developed algorithm was applied to two active draglines. The algorithm evaluated random uptime/downtime characteristics of the draglines and the planned dragline halts in the mine. Physical and random non-physical costs were included and annual maintenance cost minimisation was achieved. Dragline-1 and Dragline-2 inspection intervals were optimised as 232 and 184 h and their maintenance costs were reduced by 5.9 and 6.2% compared to the current interval, respectively. This study is the first initiative in cost-effective inspection interval optimisation of a mining machinery.