| Summary: | 碩士 === 國立中央大學 === 工業管理研究所 === 100 === The traditional inventory model with too many assumptions and limitations, so that it and real world situation are not consistent. Under realistic conditions, the inventory item may be deteriorating and the production machine may breakdown.
In this study, considers the product can deteriorate on constant rate and random machine breakdowns follow an exponential distributes. When machine breakdown, the production run will stop and immediately repair for a fixed period of time. We model the production-inventory system as a Markov Chain to formulate the expected total cost, incorporating a service-level constraint on the probability of a stock-out. The objective is to approximation the maximum inventory level and buffer stock that minimizes the expected total cost consisting of setup, corrective maintenance, holding, deterioration, and lost sales costs under conditions of continuous review, deterministic demand, and no shortages.
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