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Context-driven mean residual life estimation of mining machinery
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
2018 (engelsk)Inngår i: International Journal of Surface Mining, Reclamation and Environment, ISSN 1389-5265, s. 486-494Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Maintenance is crucial to ensure production/output and customer satisfaction in the mining sector. The cost of maintenance of mechanised and automated mining systems is very high, necessitating efforts to enhance the effectiveness of maintenance systems and organisation. For effective maintenance planning, it is important to have a good understanding of the reliability and availability characteristics of the systems. Determining the Mean Residual Life (MRL) of systems allows organisations to more effectively plan maintenance tasks. In this paper, we use a statistical approach to estimate MRL and consider a Weibull proportional hazard model (PHM) with time-independent covariates to model the hazard function so that the operating environment could be integrated into the reliability analysis. The paper explains our methods for calculating the conditional reliability function and computing the MRL as a function of the current conditions. The model is verified and validated using data from the hydraulic system of LHD equipment in a Swedish mine. The results are useful to estimate the remaining useful life of such systems; the method can be used for maintenance planning, helping to control unplanned stoppages of highly mechanised and automated systems.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2018. s. 486-494
Emneord [en]
Mean Residual Life (MRL), proportional hazard model, conditional reliability, Weibull, LHD machine
HSV kategori
Forskningsprogram
Drift och underhållsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-63100DOI: 10.1080/17480930.2017.1308067ISI: 000445077100002Scopus ID: 2-s2.0-85017207823OAI: oai:DiVA.org:ltu-63100DiVA, id: diva2:1089857
Merknad

Validerad; 2018;Nivå 2;2018-10-10 (svasva)

Tilgjengelig fra: 2017-04-21 Laget: 2017-04-21 Sist oppdatert: 2018-12-05bibliografisk kontrollert

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Ghodrati, BehzadHoseinie, HadiKumar, Uday

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