this paper considers the problem of scheduling hybrid flowshops with machine availability constraints (mac) to minimize makespan. the paper deals with a specific case of mac caused by preventive maintenance (pm) operations. contrary to previous papers considering fixed or/and conservative policies, we explore a case in which pm activities might be postponed or expedited while necessary. regardi...

Many firms have proceeded to the adoption of Enterprise resource planning ERP solutions to maintain competitiveness. ERP is a packaged software system that enables enterprises to integrate the operation, business processes and functions through common database. However, the majority of ERP systems do not support preventive maintenance (PM) scheduling process. The objective of PM is to minimize ...

This paper considers four options of warranty and preventive maintenance policy. The product is repairable and sold with a non-renewing free warranty policy. For products sold with warranty, preventive maintenance (PM) actions by manufacturers and/or buyers have an impact on the total costs for both parties. In this study, we deal with a model to study the effect of PM that carried out by the m...

Maintenance is an important way to ensure the best performance of repairable systems. This paper considers how reduce system maintenance cost while ensuring consistent performance. Due budget constraints, preventive (PM) can be done on only some components. Also, different selections components maintained have markedly effects On basis above issues, this proposes importance-based priority (IBMP...

Linear consecutive-k-out-of-n: F systems are considered. It is assumed that the components are independent and the component failure times follow an exponential distribution with identical failure rate. It is also assumed that there are only two component states (working and failed) and we can know the component state at any time. If there is at least one minimal cut set consisting of one worki...

Abstract. A complex repairable system is subjected to corrective maintenance (CM) and condition-based preventive maintenance (PM) actions. In order to take into account both the dependency between PM and CM and the possibility of imperfect maintenances, a generalized competing risks model have been introduced in [5]. In this paper, we study the particular case for which the potential times to n...

This paper explores the impact of the size of a staff of equally trained maintenance technicians on the productivity of a serial production line. First, we use the reliability and maintainability characteristics of the line to derive optimal preventive maintenance (PM) policies for each unit of equipment. Second, we use simulation modeling to evaluate the performance of the line assuming all re...

This paper considers the problem of scheduling hybrid flowshops with machine availability constraints (MAC) to minimize makespan. The paper deals with a specific case of MAC caused by preventive maintenance (PM) operations. Contrary to previous papers considering fixed or/and conservative policies, we explore a case in which PM activities might be postponed or expedited while necessary. Regardi...

This study applies periodic preventive maintenance (PM) to economic production quantity (EPQ) model for a randomly failing production process having a deteriorating production system with increasing hazard rate: minimal repaired and reworked upon failure (out of control state). The minimal repair performs restorations and returns the system to an operating state (in-control state). It is assume...

A new approach to optimal maintenance of systems (networks) is suggested. It is applied to systems subject to two external independent shock processes. A system ’consists’ of two parts and each shock process affects only its own part. A new notion of bivariate signature is suggested and used for obtaining survival characteristics of a system and further optimization of the preventive maintenanc...