The paper develops integrated production, inventory and maintenance models for a deteriorating production system in which the production facility may not only shift from an ‘in-control’ state to an ‘out-of-control’ state but also may break down at any random point in time during a production run. In case of machine breakdown, production of the interrupted lot is aborted and a new production lot...

this paper works on the concept of flatness and its practical application for the design of an optimal transient controller in a synchronous machine. the feedback linearization scheme of interest requires the generation of a flat output from which the feedback control law can easily be designed. thus the computation of the flat output for reduced order model of the synchronous machine with simp...

One of the fundamental maintenance tasks ports is periodic dredging them. This necessary to guarantee a minimum draft that will enable ships access safely. The determination bathymetries instrument determines need for and permits an analysis behavior port bottom over time, in order achieve adequate water depth. Satellite data processing predict environmental parameters used increasingly. Based ...

Today’s product demand and mix changes requiring reconfiguration of cells in each period of a multi-period planning horizon, This paper proposes a mixed-integer non-linear programming model for reconfigurable CMS design to meet changes in product mix & demand in each period of a multi-period planning horizon. The proposed model, to the best of author’s knowledge, is the most comprehensive model...

In this study, we propose a new solution approach for solving the Maintenance Scheduling Problem for a Family of Machines (MSPFM). Goyal and Kusy (1985) presented the only model that used a nonlinear function for the cost of operating a machine in the literature of the periodic maintenance scheduling problems. Before presenting our solution approach, we first review Goyal and Kusy’s (1985) math...

This paper investigates the optimal inventory replenishment policy for an economic production quantity (EPQ) model with backordering, rework and machine breakdown taking place in stock piling time. A prior paper by Chiu has examined the lot-sizing problem on an imperfect quality EPQ model. Due to another reliability factor random machine breakdown seems to be inevitable in most real world manuf...

This paper works on the concept of flatness and its practical application for the design of an optimal transient controller in a synchronous machine. The feedback linearization scheme of interest requires the generation of a flat output from which the feedback control law can easily be designed. Thus the computation of the flat output for reduced order model of the synchronous machine with simp...

This paper considers the impact of inflation on the EPQ model for deteriorating items subject to random machine breakdowns and fixed maintenance period. The demand rate is assumed to be a function of inflation and the demand increase due to inflation. The objective is to determine the optimal production uptime that minimizes the present value of expected total costs per unit time consisting of ...

Abstract Introduction Worldwide public transport systems are exposed to disruptions caused by malfunctions, accidents, maintenance, reduced fleet, and disasters, compromising mobility. Transport networks’ multimodal planning management can be explored increase their robustness against these events. In this context, research paper proposes empirically compares methods assess the of a network, lo...