JOINT MAINTENANCE AND SPARE COMPONENT PROVISIONING POLICY FOR k-OUT-OF-n SYSTEMS

Abstract

This study develops an analytic framework for joint modeling of age-based preventive maintenance and (s, Q) spare component provisioning policy for k-out-of-n:G systems with i.i.d. nonrepairable components. We assume that during system maintenance, instead of discarding the whole system, only failed components are replaced by spares if the on-handspares are sufficient. The objective is to determine a proper preventive maintenance interval and the ordering parameters to minimize the undiscounted long run average cost under a system availability constraint. Our study sheds light on the lumpy demand scenario in the problems of joint modeling of preventive maintenance and spare provisioning.

Cost analysis for multi-component system with failure interaction under renewing free-replacement warranty

“…When the system fails, a perfect maintenance effort (Borrero & Akhavan-Tabatabaei, 2013;Chen et al (2013); is conducted for the survived components to reduce the chances of future system failures. Upon this assumption, the…”

Periodic inspection frequency and inventory policies for ak-out-of-nsystem

“…Considering both condition-based maintenance and block replacement policies, they obtained the optimal value for the variables to achieve the required level of availability at minimum cost. Chen et al (2013) construct a joint model for a k-out-of-n system. They assume that the components are non-repairable with constant failure rate.…”

“…Majority of related papers focus on system availability, either separately (Fawzi and Hawkes (1991), and Chakravarthy and Gómez-Corral (2009)) Chen et al (2013), and Srivastava et al (1988)). Obtaining jointly the combination of inspection interval, reorder interval, periodic order-up-to level and emergency order-up-to level such that the total cost is minimized, is novelty for a k-out-of-n system.…”

“…De Smidt-Destombes et al (2009), Srivastava et al (1988), Fawzi and Hawkes (1991), and Chakravarthy and Gómez-Corral (2009) do not consider reorder points. Only, Chen et al (2013) discuss a (s, Q) inventory policy in their paper. However, new orders are placed when the inventory level is lower than s+1.…”

“…None of the other related papers consider emergency spares. For example, Chen et al (2013) wait until failed components are replenished instead of ordering emergency spares. This implies that the system will be down in the meantime.…”