Effective computing algorithm for maintenance optimization of highly reliable systems

0386704 - ÚGN 2013 RIV GB eng J - Journal Article
Briš, R. - Byczanski, Petr
Effective computing algorithm for maintenance optimization of highly reliable systems.
Reliability Engineering & System Safety. Roč. 109, č. 1 (2013), s. 77-85. ISSN 0951-8320. E-ISSN 1879-0836
R&D Projects: GA MŠMT(CZ) ED1.1.00/02.0070
Institutional support: RVO:68145535
Keywords : exact computing * maintenance * optimization * unavailability
Subject RIV: BA - General Mathematics
Impact factor: 2.048, year: 2013
http://www.sciencedirect.com/science/article/pii/S0951832012001639

This paper describes a new iterative numerical algorithm for optimal maintenance strategy respecting a given reliability constraint. It stems from the previous author's research work which brings a new direct analytical method that enables exact reliability quantifications of highly reliable systems with maintenance (both preventive and corrective), i.e. the instantaneous unavailability function is computed in full machine accuracy. The method takes into account systems with highly reliable and maintained components, including repairable components undergoing to hidden failures. The new numerical algorithm for maintenance optimization introduced in this article fully respects previously developed exact computing methodology to solve a cost optimization problem where decision variable is maintenance. The algorithm, which is based on merits of a high performance language for technical computing MATLAB, results from linear approximation of total system cost that is supposed to be a linear function of frequency of maintenance and from limiting unavailability approximation in each iteration step.
Permanent Link: http://hdl.handle.net/11104/0219303