Optimal production lot size with process deterioration under an extended inspection policy

A mathematical model to determine the optimal production lot size for a deteriorating production system under an extended product inspection policy is developed. The last-K product inspection policy is considered so that the nonconforming items can be reduced, under which the last K products in a production lot are inspected and the nonconforming items from those inspected are reworked. Consider that the products produced towards the end of a production lot are more likely to be nonconforming, is proposed an extended product inspection policy for a deteriorating production system. That is, in a production lot, product inspections are performed among the middle K1 items and after inspections, all of the last K2 products are directly reworked without inspections. Our objective here is the joint optimization of the production lot size and the corresponding extended inspection policy such that the expected total cost per unit time is minimized. Since there is no closed form expression for our optimal policy, the existence for the optimal production inspection policy and an upper bound for the optimal lot size are obtained. Furthermore, an efficient solution procedure is provided to search for the optimal policy. Finally, numerical examples are given to illustrate the proposed model and indicate that the expected total cost per unit time of our product inspection model is less than that of the last-K inspection policy.     

集散控制系统(DCS)及其雷击与防护

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Architecture of Virtual Manufacturing based on Autonomous Manufacturing Islands

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通信控制器现场检测仪研制

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碾焉煤矿副立井提升设备选型分析

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非电子仪表的一种计算机判读和处理系统

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一种电力数据检测记录装置的设计与实现

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浅谈商品混凝土生产的质量管理

从原材料的选用与管理、设备管理、组织机构设置、人员的管理和培训、商品混凝土配合比的设计及控制管理、生产工艺管理、商品混凝土施工现场技术管理、商品混凝土的质量检验管理等方面论述了商品混凝土生产的质量管理。     

四台矿强力皮带大型设备的安装实践

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