Scheduling just-in-time part supply for mixed-model assembly lines
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- 作者：Nils Boysena ; nils.boysen@uni-jena.de ; Stefan Bockb ; sbock@winfor.de
- 关键词：Scheduling ; Mixed-model assembly line ; Just-in-time ; In-house logistics
- 刊名：European Journal of Operational Research
- 出版年：2011
- 出版时间：16 May 2011
- 年：2011
- 卷：211
- 期：1
- 页码：15-25
- 全文大小：605 K
文摘
With increasing cost competition and product variety, providing an efficient just-in-time (JIT) supply has become one of the greatest challenges in the use of mixed-model assembly line production systems. In the present paper, therefore, we propose a new approach for scheduling JIT part supply from a central storage center. Usually, materials are stored in boxes that are allotted to the consumptive stations of the line by a forklift. For such a real-world problem, a new model, a complexity proof as well as different exact and heuristic solution procedures are provided. Furthermore, a direct comparison with a simple two-bin kanban system is provided. Such a system is currently applied in the real-world industrial process that motivates our research. It becomes obvious that this policy is considerably outperformed according to the resulting inventory- and α-service levels. Moreover, at the interface between logistics and assembly operations, strategic management implications are obtained. Specifically, based on the new approach, it is the first time a statistical analysis is being made as to whether widespread Level Scheduling policies, which are well-known from the Toyota Production System, indeed facilitate material supply. Note that in the literature it is frequently claimed that this causality exists.