Joint Determination of Optimal Product Expected Lifetime and Warranty Period

最佳產品平均壽命與保證期限聯合設定之研究

陳忠和(Chung-Ho Chen)；張琬琳(Wan-Lin Chang)

二次品質損失函數 ； 平均壽命 ； 保證期限 ； quadratic quality loss function ； expected lifetime ； warranty period

品質學報

18卷5期（2011 / 10 / 01）

455 - 473

英文

最佳製程平均數設定爲現代統計製程管制之一有效方法，它將影響生產製程的產品生產成本、廢棄成本以及重作成本。本研究首先強調具二次品質損失函數的修正Chen與Chung模式的建立，隨後具整合品質與可靠度概念的修正Ladany與Shore模式將進一步被提出，以求產品最大平均總利潤下的最佳產品平均壽命與保證期限。

The optimum process mean setting is an efficient method for modern statistical process control. It can influence the production cost, the scrap cost, and the rework cost of production process. In this paper, we address the formulation of modified Chen and Chung's model with quadratic quality loss function. This notion is applied to determine the optimum process mean based on maximizing the expected profit per item. The modified Ladany and Shore's model with integrating quality and reliability is applied to determine the optimum expected lifetime and warranty period of product. This application is realized on the basis of maximizing the total expected profit.

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