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Minerals 2016, 6(2), 51; https://doi.org/10.3390/min6020051

Preventive Replacement Decisions for Dragline Components Using Reliability Analysis

Department of Mining Engineering, Middle East Technical University, 06800 Çankaya Ankara, Turkey
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Author to whom correspondence should be addressed.
Academic Editor: Samuel Frimpong
Received: 30 January 2016 / Revised: 18 May 2016 / Accepted: 20 May 2016 / Published: 30 May 2016
(This article belongs to the Special Issue Frontiers of Surface Mining Research)
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Abstract

Reliability-based maintenance policies allow qualitative and quantitative evaluation of system downtimes via revealing main causes of breakdowns and discussing required preventive activities against failures. Application of preventive maintenance is especially important for mining machineries since production is highly affected from machinery breakdowns. Overburden stripping operations are one of the integral parts in surface coal mine productions. Draglines are extensively utilized in overburden stripping operations and they achieve earthmoving activities with bucket capacities up to 168 m3. The massive structure and operational severity of these machines increase the importance of performance awareness for individual working components. Research on draglines is rarely observed in the literature and maintenance studies for these earthmovers have been generally ignored. On this basis, this paper offered a comprehensive reliability assessment for two draglines currently operating in the Tunçbilek coal mine and discussed preventive replacement for wear-out components of the draglines considering cost factors. View Full-Text
Keywords: dragline; data trend and correlation tests; reliability analysis; maintenance policy; preventive component replacement dragline; data trend and correlation tests; reliability analysis; maintenance policy; preventive component replacement
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Demirel, N.; Gölbaşı, O. Preventive Replacement Decisions for Dragline Components Using Reliability Analysis. Minerals 2016, 6, 51.

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