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Reliability-based maintenance scheduling of hydraulic system of rotary drilling machines
Faculty of Mining Engineering, Sahand University of Technology, Tabriz.
Faculty of Mining Engineering, Geophysics and Petroleum, Shahrood University of Technology.
Faculty of Mining Engineering, Geophysics and Petroleum, Shahrood University of Technology.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
2013 (English)In: International Journal of Mining Science and Technology, ISSN 2095-2686, Vol. 23, no 5, p. 771-775Article in journal (Refereed) Published
Abstract [en]

Hydraulic system has a critical and important role in drilling machines. Any failure in this system leads to problems in power system and machine operation. Since the failure cannot be prevented entirely, it is important to minimize its probability. Reliability is one of the most efficient and important method to study safe operation probability of hydraulic systems. In this research, the reliability of hydraulic system of four rotary drilling machines in Sarcheshmeh Copper Mine in Iran has been analyzed. The data analysis shows that the time between failures (TBF) of Machines A and C obey the Weibull (2P) and Weibull (3P) distribution, respectively. Also, the TBF of Machines B and D obey the lognormal distribution. With regard to reliability plots of hydraulic systems, preventive reliability-based maintenance time intervals for 80% reliability levels for machines in this system are 10 h.

Place, publisher, year, edition, pages
2013. Vol. 23, no 5, p. 771-775
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-7981DOI: 10.1016/j.ijmst.2013.08.023Scopus ID: 2-s2.0-84884985187Local ID: 66d792cb-3db4-4a6d-854b-af895a45d6e4OAI: oai:DiVA.org:ltu-7981DiVA, id: diva2:980871
Note
Validerad; 2013; 20130902 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Citation style
  • apa
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  • vancouver
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