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A priority scheduling approach for flexible job shops with multiple process plans

Authors
Doh, Hyoung-HoYu, Jae-MinKim, Ji-SuLee, Dong-HoNam, Sung-Ho
Issue Date
Jun-2013
Publisher
TAYLOR & FRANCIS LTD
Keywords
flexible job shop scheduling; multiple process plans; priority rules; simulation
Citation
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH, v.51, no.12, pp.3748 - 3764
Indexed
SCIE
SCOPUS
Journal Title
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
Volume
51
Number
12
Start Page
3748
End Page
3764
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/27619
DOI
10.1080/00207543.2013.765074
ISSN
0020-7543
Abstract
This paper considers the job shop scheduling problem with alternative operations and machines, called the flexible job shop scheduling problem. As an extension of previous studies, operation and routing flexibilities are considered at the same time in the form of multiple process plans, i.e. each job can be processed through alternative operations, each of which can be processed on alternative machines. The main decisions are: (a) selecting operation/machine pair; and (b) sequencing the jobs assigned to each machine. Since the problem is highly complicated, we suggest a practical priority scheduling approach in which the two decisions are done at the same time using a combination of operation/machine selection and job sequencing rules. The performance measures used are minimising makespan, total flow time, mean tardiness, the number of tardy jobs, and the maximum tardiness. To compare the performances of various rule combinations, simulation experiments were done on the data for hybrid systems with an advanced reconfigurable manufacturing system and a conventional legacy system, and the results are reported.
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