Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/98374
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Type: Journal article
Title: Financial view and profitability evaluation on multi-state weighted k-out-of-n: F system reliability
Author: Khorshidi, H.
Gunawan, I.
Ibrahim, M.
Citation: International Journal of Reliability and Safety, 2014; 8(2/3/4):284-298
Publisher: InderScience Publications
Issue Date: 2014
ISSN: 1479-389X
1479-3903
Statement of
Responsibility: 
Hadi Akbarzade Khorshid,; Indra Gunawan, M. Yousef Ibrahim
Abstract: A financial view is proposed for reliability evaluation of multi-state weighted k-out-of-n:F systems. Failure cost as the cost which is imposed on the components by failures is used to denote the importance weight of each component. The deterioration process of components over time is modelled by Markov chain. System failure behaviour is formulated by Universal Generating Function (UGF). Furthermore, the present value of system failure is calculated by considering time value of money. As a result, the system reliability is demonstrated as cost which is more sensible for managers. A numerical example is presented to illustrate the proposed approach. After that, a way is suggested to transform the system cost present value into system reliability value. MATLAB programming is developed to make a sensitivity analysis on example results. Therefore, the impact of maintenance activities is investigated to show how they can reduce system cost through improving the system reliability.
Keywords: multi-state weighted k-out-of-n:F system; reliability assessment; failure cost; UGF; universal generating function; present value; financial concepts; profitability
Rights: © 2014 Inderscience Enterprises Ltd.
RMID: 0030042540
DOI: 10.1504/IJRS.2014.069523
Appears in Collections:Entrepreneurship, Commercialisation, and Innovation Centre publications

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