A mathematical model for cell formation considering investment and operational costs

A mathematical model for cell formation considering investment and operational costs

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Article ID: iaor1997162
Country: Netherlands
Volume: 69
Issue: 3
Start Page Number: 330
End Page Number: 341
Publication Date: Sep 1993
Journal: European Journal of Operational Research
Authors: , ,
Keywords: cellular manufacturing
Abstract:

The majority of the cell formation models consider grouping of parts and machines, based on clustering techniques. The performance of cells thus formed indicates tha the cellular systems perfrom more poorly in terms of work-in-process inventory, average job waiting time and job flow time than the improved job shops. However, they have supeior performance in terms of average move times and setup times. The main reason for such a poor performance is that the current cell design procedures do not consider the operational aspects during the cell formation. Therefore, the objective of this paper is to consider the investment and operational costs simultaneously during the design of a cellular manufacturing system. For this purpose the authors develop a mixed integer programming model and illustrate the trade-off relationships between the investment and operational variables, such as sequence dependence setup, machine idle time, part inventory, part early late finish (compared with due date), by considering examples. Computational experience is provided for randomly generated test problems.

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