A comparative study of three tool replacement/operation sequencing strategies in a flexible manufacturing system

A comparative study of three tool replacement/operation sequencing strategies in a flexible manufacturing system

0.00 Avg rating0 Votes
Article ID: iaor20011737
Country: United States
Volume: 47
Issue: 6
Start Page Number: 479
End Page Number: 499
Publication Date: Sep 2000
Journal: Naval Research Logistics
Authors:
Keywords: manufacturing industries, scheduling, programming: dynamic
Abstract:

This paper studies three tool replacement/operation sequencing strategies for a flexible manufacturing system over a finite time horizon: (1) failure replacement – replace the tool only upon failure, (2) optimal preventive tool replacement for a fixed sequence of operations, and (3) joint scheduling of the optimal preventive tool replacement times and the optimal sequence of operations. Stochastic dynamic decision models are used for strategies 2 and 3. The optimization criterion for strategies 2 and 3 is the minimization of the total expected cost over the finite time horizon. We will show through numerical studies that, with the same amount of information, the total expected costs can be reduced considerably by choosing an optimal strategy. Our conclusion is that in flexible manufacturing, optimal tool replacement and optimal operations sequencing are not separate issues. They should be considered jointly to minimize the expected total cost.

Reviews

Required fields are marked *. Your email address will not be published.