Single setup multiple delivery model of JIT system

The delivery strategy of JIT system is an important factor influencing JIT performance. In order to implement delivery strategy in different JIT environments, the single-setup-multiple-delivery (SSMD) model is studied. The number of deliveries, the focus of the SSMD model, is discussed emphatically. In the proposed SSMD model, the lead time of raw material supplier is considered and the production of the manufacturer is affected by the lead time. The cost functions of the supply chain, consisting of the raw material supplier, the manufacturer and the buyer, are built respectively. By minimizing the cost of the supply chain, the optimal number of deliveries is obtained in non-cooperation policy and cooperation policy separately. The interval of the number of deliveries, which can reduce the cost, compared to the single-setup-single-delivery model, is also analyzed in non-cooperation policy and cooperation policy. A numerical example is setup to confirm advantages of the proposed SSMD model.

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