Optimal Replacement and Protection Strategy for Parallel Systems

Rui Peng (), Gregory Levitin (), Min Xie () and Szu Hui Ng ()
Additional contact information
Rui Peng: National University of Singapore
Gregory Levitin: The Israel Electric Corporation Ltd.
Min Xie: National University of Singapore
Szu Hui Ng: National University of Singapore

Chapter Chapter 9 in Recent Advances in System Reliability, 2012, pp 135-144 from Springer

Abstract: Abstract We consider a parallel system consisting of components with different characteristics. The components can be unavailable due to internal failures or external impacts. Each component has an increasing failure rate and is subjected to external impacts that can occur with fixed frequency. The system reliability is defined as the ability to maintain a specified performance level. It is assumed that the component destruction probability depends on the investment made in protection actions. In order to increase the system reliability, two measures can be taken: (1) increase of the components replacement frequency to improve their availability and (2) improvement of the components protection to reduce the probability of their destruction by the external impacts. The optimal maintenance and protection strategy which minimizes the total cost of maintenance, protection and damage caused by unsupplied demand is studied. The proposed approach is based on a universal generating function technique and a genetic algorithm.

Keywords: Maintenance; Optimization; Parallel systems; Protection; Universal generating function; Genetic algorithm (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1007/978-1-4471-2207-4_9

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