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This paper deals with the supply planning for two level assembly systems under stochastic lead time and random failure machine. The objective is to determine the optimal supply planning of the assembly system while considering the maintenance actions and then to study their impact on the optimal release dates for the components at level 2. The optimal supply planning minimizes the total cost which...
This paper deals with a system maintenance optimization problem. The system to be maintained is assumed to be continuously monitored and subject to stochastic degradation. The proposed maintenance model considers three types of maintenance actions: minimal repair, preventive maintenance(PM)and replacement. PM are performed at dates kT (k = 1,2,…) while minimal repair are executed at failure occurrence...
This paper considers a manufacturing system composed of a single randomly failing machine. Initially, the system is the supplier of a direct client, in a supplier - client relation. In order to maximise its profits, the system provides an outsourcing task to several firms, in a subcontractor - multi-outsourcers relation. The research described here aims to study the outsourcing constraints from the...
This study deals with the problem of the integration of subcontracting under a combined approach of maintenance management and production control. We consider a single randomly failing and repairable machine supplying units to a direct costumer. In order to better exploit the production capacity of this manufacturing system, the machine is allocated to perform a subcontracting task to others costumers...
Several periodic preventive maintenance (PM) models have been developed in the literature. This paper introduces an adaptive failure law which can vary over time depending on the missions to achieve. From this degradation law, the purpose of this paper is to develop a preventive maintenance policy for finite horizon of time, noted H, based on a set of improvement maintenance actions at fixed interval...
In this paper, we have developed an integrated maintenance policy for a manufacturing system subjected to a random failure and calling up on several subcontractor machines. The problem consists on a machine, unable to satisfy a constant demand. That??s why it called upon another machine, comprising the so-called subcontractor machine, which produces at a certain rate the same type of product. In order...
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