Journal
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
Volume 50, Issue 13, Pages 3572-3578Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207543.2012.670952
Keywords
multi-state systems; system reliability; Kronecker algebra; tensor algebra
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Multi-state systems (MSS) are systems whose stochastic degradation process is characterised by several performance levels varying from nominal functioning to complete failure. MSS arise naturally in many application areas. MSS reliability evaluation and estimation has received much attention from researchers and a wide range of papers dealing with MSS have been published. In this paper, an approach based on Kronecker algebra combined with stochastic processes is proposed to evaluate the reliability of a series-parallel MSS. The main advantage of the proposed approach is that the mathematical expressions of the MSS reliability indices are derived from data of individual elementary components without generating the whole, possibly huge, MSS state space. Furthermore, the approach is well formalised and easy to implement thanks to Kronecker algebra operators. Examples are given to illustrate the proposed approach.
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