An integrated model and its extension for disassembly leveling and lot-sizing for multiple product types
- Authors
- Kang, Kyung-Wan; Doh, Hyoung-Ho; Park, Jung-Hyeon; Lee, Dong-Ho
- Issue Date
- Dec-2011
- Publisher
- IEEE
- Citation
- 2011 IEEE/SICE International Symposium on System Integration, SII 2011, pp.756 - 761
- Indexed
- SCOPUS
- Journal Title
- 2011 IEEE/SICE International Symposium on System Integration, SII 2011
- Start Page
- 756
- End Page
- 761
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166903
- DOI
- 10.1109/SII.2011.6147543
- ISSN
- 0000-0000
- Abstract
- Disassembly leveling, one of disassembly process planning decisions, is to determine disassembly structures that specify parts/subassemblies to be obtained from used/end-of-life products, and disassembly lot-sizing is the problem of determining the amounts of disassembly operations required to satisfy the demands of their parts and/or subassemblies. In this study, we consider the two problems at the same time for the objective of minimizing the sum of disassembly setup and operation costs. In particular, we consider a generalized version in which disassembly levels may be different even for products of the same type. Two types of the problem are considered: (a) basic problem without parts commonality, i.e., products do not share their parts/subassemblies; and (b) extended problem with parts commonality. For the basic problem, a polynomial-time optimal algorithm is suggested after developing a mathematical programming model. Also, we show that the extended problem is NP-hard and then suggest a heuristic, together with its computational results.
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