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Mathematical model and solution algorithms for capacitated dynamic lot-sizing in remanufacturing systems

Title
Mathematical model and solution algorithms for capacitated dynamic lot-sizing in remanufacturing systems
Author
이동호
Keywords
Remanufacturing; Dynamic Lot-Sizing; Capacity Constraints; Fix-And-Optimize Heuristics
Issue Date
2018-03
Publisher
KOREAN INST INDUSTRIAL ENGINEERS
Citation
INDUSTRIAL ENGINEERING AND MANAGEMENT SYSTEMS, v. 17, no. 1, page. 1-13
Abstract
Remanufacturing is one of advanced product recovery options in which end-of-use/life products are reprocessed in such a way that their appearances and qualities are as good as new. In this study, we consider dynamic lot-sizing in remanufacturing systems that consist of a single disassembly facility, parallel reprocessing facilities and a single reassembly facility. The problem is to determine the disassembly, reprocessing and reassembly lot-sizes that satisfy the remanufactured product demands over a planning horizon. As a significant extension of the previous study, we consider the processing time capacity of each facility explicitly, and hence more realistic and applicable solutions can be obtained. To represent the problem mathematically, a mixed integer programming model is developed for the objective of minimizing the sum of setup, operation and inventory holding costs. Then, due to the problem complexity, we suggest three variants of the fix-and-optimize based heuristic that fixes a portion of binary variables and solves the resulting problems iteratively. Computational experiments were done on various test instances and the test results show that the one that fixes the binary setup variables by the overlapped-period method performs better than the others and gives near optimal solutions within a reasonable amount of computation time.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE07406969&language=ko_KRhttp://repository.hanyang.ac.kr/handle/20.500.11754/118046
ISSN
1598-7248; 2234-6473
DOI
10.7232/iems.2018.17.1.001
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > INDUSTRIAL ENGINEERING(산업공학과) > Articles
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