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On comparing coherent systems with heterogeneous components

Part of: Distribution theory - Probability Special processes

Published online by Cambridge University Press:  24 March 2016

Francisco J. Samaniego  and
Jorge Navarro
Francisco J. Samaniego*
Affiliation:
University of California, Davis
Jorge Navarro*
Affiliation:
Universidad de Murcia
*
* Postal address: Department of Statistics, University of California, Davis, 399 Crocker Lane, 95616 Davis, CA, USA. Email address: fjsamaniego@ucdavis.edu
** Postal address: Facultad de Matemáticas, Universidad de Murcia, 30100 Murcia, Spain. Email address: jorgenav@um.es
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Abstract

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In this paper we investigate different methods that may be used to compare coherent systems having heterogeneous components. We consider both the case of systems with independent components and the case of systems with dependent components. In the first case, the comparisons are based on the new concept of the survival signature due to Coolen and Coolen-Maturi (2012) which extends the well-known concept of system signatures to the case of components with lifetimes that need not be independent and identically distributed. In the second case, the comparisons are based on the concept of distortion functions. A graphical procedure (called an RR-plot) is proposed as an alternative to the analytical methods when there are two types of components.

Keywords

Coherent systemsystem signaturesurvival signaturedistorted distributionstochastic order

MSC classification

Primary: 60E15: Inequalities; stochastic orderings
Secondary: 60K10: Applications (reliability, demand theory, etc.)

Information

Type
Research Article
Information
Advances in Applied Probability , Volume 48 , Issue 1 , March 2016 , pp. 88 - 111
Copyright
Copyright © Applied Probability Trust 2016 

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