A polynomial algorithm for no-wait cyclic multi-hoist scheduling

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3 Scopus citations

Abstract

This paper addresses cyclic scheduling of multiple hoists in a no-wait electroplating line with constant processing times. The objective is to minimize the cycle time, or equivalently maximizing the production throughput, for a given number of hoists. The problem is first formulated as a set of prohibited intervals for the cycle time. We then prove that the optimal cycle time is necessarily one of special values of the cycle time, and thus reduce the problem to a feasibility-checking problem for a given value of the cycle time. We show that the latter problem can be transformed to a longest path problem in a directed graph. The complete algorithm is shown to be polynomial in the number of tanks in an electroplating line.

Original languageEnglish
Title of host publicationProceedings - ICSSSM'06
Subtitle of host publication2006 International Conference on Service Systems and Service Management
PublisherIEEE Computer Society
Pages1156-1161
Number of pages6
ISBN (Print)1424404517, 9781424404513
DOIs
StatePublished - 2006
EventICSSSM'06: 2006 International Conference on Service Systems and Service Management - Troyes, France
Duration: 25 Oct 200627 Oct 2006

Publication series

NameProceedings - ICSSSM'06: 2006 International Conference on Service Systems and Service Management
Volume2

Conference

ConferenceICSSSM'06: 2006 International Conference on Service Systems and Service Management
Country/TerritoryFrance
CityTroyes
Period25/10/0627/10/06

Keywords

  • Electroplating lines
  • Hoist scheduling problem
  • Multiple hoists
  • Polynomial algorithm

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