A new approach to minimize non-periodic preventive maintenance cost using importance measures of components

摘要

Based on unit-cost extended life (UCEL) measure, this study developed an optimization algorithm to minimize total maintenance cost subject to a threshold value of system reliability for non-periodic preventive maintenance (PM) model in a series-parallel system. An importance measure of UCEL components is developed to facilitate determining maintenance policy. A case study showed that developed algorithm obtains satisfied results easily and quickly in comparison with earlier studies.