Estimating the throughput of an exponential CONWIP assembly system

Estimating the throughput of an exponential CONWIP assembly system

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Article ID: iaor19941212
Country: Netherlands
Volume: 14
Issue: 1/2
Start Page Number: 135
End Page Number: 157
Publication Date: Aug 1993
Journal: Queueing Systems
Authors: ,
Keywords: assembly line balancing
Abstract:

The authors consider a production system consisting of several fabrication lines feeding an assembly station where both fabrication and assembly lines consist of multiple machine exponential workstations and the CONWIP (CONstant Work-In-Process) mechanism is used to regulate work releases. They model this system as an assembly-like queue and develop approximations for the throughput and average number of jobs in queue. These approximations use an estimate of the time that jobs from each line spend waiting for jobs from other lines before being assembled. The authors use the present approximations to gain insight into the related problems of capacity allocation, bottleneck placement and WIP setting.

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