Modeling and analysis of machine sharing in manufacturing systems

Saifallah Benjaafar

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The issue of machine sharing arises quite frequently in the design and operation of automated manufacturing systems. It is often championed as a mechanism for enhancing the flexibility and versatility of these systems. However despite its importance, our understanding of machine sharing and of its effect on system performance has remained inadequate, relying mainly on anecdotal data or limited empirical evidence. In this paper, we present an analytical model that captures the various dimensions of machine sharing and use this model to study the effect of machine sharing on performance of manufacturing systems. In particular, we examine the relationship between machine sharing and several performance measures, such as production rate, machine utilization, flow time and work-in-process inventory, for varying assumptions of system utilization, setup times, batch sizes and demand and processing variability. These relationships are then used to identify conditions under which machine sharing is of value and to determine the corresponding optimal sharing levels.

Original languageEnglish (US)
Pages (from-to)56-73
Number of pages18
JournalEuropean Journal of Operational Research
Volume91
Issue number1
DOIs
StatePublished - May 24 1996

Bibliographical note

Funding Information:
1 The author's research was in part supported by the United States National Science Foundation under grant No. DMII-9309631.

Keywords

  • Batching
  • Flexible manufacturing
  • Machine sharing
  • Manufacturing systems
  • Setups

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