Sub-optimality of a JIT production system with stochastic demand

Katsuhisa Ohno*, Kenichi Nakashima, Mitsutoshi Kojima

*この研究の対応する著者

研究成果: Chapter

抄録

To maintain a Just-In-Time (JIT) production system, two kinds of kanbans, that is, a production-ordering and a withdrawal kanbans are used as tools to control the production and withdrawal quantities in each process. The numbers of kanbans used in each process decide the performance of the JIT production system. In a previous paper, the authors considered the JIT production system with a stochastic demand, and proposed an algorithm for finding optimal numbers of two kinds of kanbans that minimized an expected average cost per period. This paper deals with the optimal control problem of the same production system which does not use kanbans. A problem of determining an optimal ordering and production policy that minimizes the expected average cost per period is formulated into a Markov decision process (MDP). Numerical comparisons between optimal policies computed by the MDP and kanban controls by optimal numbers of kanbans show that the JIT production system is sub-optimal.

本文言語English
ホスト出版物のタイトルProceedings of the Japan/USA Symposium on Flexible Automation
編集者K. Stelson, F. Oba
ページ1253-1256
ページ数4
出版ステータスPublished - 1996 12 1
外部発表はい
イベントProceedings of the 1996 Japan-USA Symposium on Flexible Automation. Part 2 (of 2) - Boston, MA, USA
継続期間: 1996 7 71996 7 10

出版物シリーズ

名前Proceedings of the Japan/USA Symposium on Flexible Automation
2

Conference

ConferenceProceedings of the 1996 Japan-USA Symposium on Flexible Automation. Part 2 (of 2)
CityBoston, MA, USA
Period96/7/796/7/10

ASJC Scopus subject areas

  • 工学(全般)

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