AN INTEGRATED PLANNING AND SCHEDULING MODEL FOR WIRING SYSTEMS ASSEMBLY
This paper presents a mixed integer programming model that could be used to schedule the assembly of wiring systems in the automotive industry. The assembly system consisted of several parallel independent workstations. The paper shows how the performance of a traditional integrated planning and scheduling model could be improved with the help of three additional constraints and priority coefficients in allocation of resources. The first constraint was a reformulation of the traditional material balance equation while the other two set the values of the planning variables when the demand for a particular period is higher than the average demand or the capacity of the assembly system. The priority allocation coefficients exploited the fact that workstations were identical.
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