Optimization of the replacement time for critical repairable components

Autor:	Mylena Karen Vílchez Torres, Jimy Frank Oblitas Cruz, Wilson Castro Silupu
Jazyk:	English<br />Spanish; Castilian
Rok vydání:	2020
Předmět:	Repairable components Overall cost Jack-Knife MTBF MTBI Weibull Technology Mining engineering. Metallurgy TN1-997
Zdroj:	Dyna, Vol 87, Iss 214 (2020)
Druh dokumentu:	article
ISSN:	0012-7353 2346-2183
DOI:	10.15446/dyna.v87n214.84509
Popis:	Equipment-intensive industries must manage critical components due to their impact on the availability and high inventory carrying costs. In this context, this study seeks to assess mean times between interventions (MTBI) and mean times between failures (MTBF) to determine optimal replacement times for critical repairable components used in six EX5500 hydraulic excavators operating at an open-pit mining site. For these purposes, the authors compared a base policy using the MTBF values provided by the equipment manufacturer, against the proposed policy using the MTBI values obtained from equipment intervention records. The results from the study, revealed that the MTBI policy was able to streamline the replacement times for critical repairable components, thus, generating a cost optimization model at a higher level of reliability
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/20977383d08148209c4eb40770e8e43d Zobrazit plný text záznamu View record in DOAJ