A two-unit general parallel system with (n - 2) cold standbys-Analytic and simulation approach

Papageorgiou, E; Kokolakis, G

dc.contributor.author	Papageorgiou, E	en
dc.contributor.author	Kokolakis, G	en
dc.date.accessioned	2014-03-01T01:25:51Z
dc.date.available	2014-03-01T01:25:51Z
dc.date.issued	2007	en
dc.identifier.issn	0377-2217	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17775
dc.subject	Cold standbys	en
dc.subject	Correlated lifetimes	en
dc.subject	General distributions	en
dc.subject	Redundancy	en
dc.subject	Rejection method	en
dc.subject	Reliability	en
dc.subject	Simulation	en
dc.subject.classification	Management	en
dc.subject.classification	Operations Research & Management Science	en
dc.subject.other	Cold standbys	en
dc.subject.other	Correlated lifetimes	en
dc.subject.other	General distributions	en
dc.subject.other	Rejection method	en
dc.subject.other	Computational complexity	en
dc.subject.other	Computer simulation	en
dc.subject.other	Correlation methods	en
dc.subject.other	Mathematical models	en
dc.subject.other	Operations research	en
dc.title	A two-unit general parallel system with (n - 2) cold standbys-Analytic and simulation approach	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.ejor.2005.09.010	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.ejor.2005.09.010	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	A parallel (2, n - 2)-system is investigated here where two units start their operation simultaneously and any one of them is replaced instantaneously upon its failure by one of the (n - 2) cold standbys. We assume availability of n non-identical, non-repairable units for replacement or support. The system reliability is evaluated by recursive relations with unit-lifetimes Ti (i = 1, ..., n) that have a general joint distribution function F(t). On the basis of the derived expression, simulation techniques have been developed for the evaluation of the system reliability and the mean time to failure, useful when dealing with large systems or correlated unit-lifetimes and less mathematically manageable distributions. Simulation results are presented for various lifetime distributions and comparisons are made with derived analytic results for some special distributions and moderate values of n. © 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	European Journal of Operational Research	en
dc.identifier.doi	10.1016/j.ejor.2005.09.010	en
dc.identifier.isi	ISI:000241709800024	en
dc.identifier.volume	176	en
dc.identifier.issue	2	en
dc.identifier.spage	1016	en
dc.identifier.epage	1032	en