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Remanufacturing Control in Multistage Systems with Stochastic Recovery Rates

机译:具有随机回收率的多阶段系统的再制造控制

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Remanufacturing operations involved with highly uncertain recovery rate of used products, subassemblies and parts that complicate the planning and control of the process. In this paper, we develop a comprehensive procedure that determines the optimal input quantities at each stage of the remanufacturing operations in which recovery rates at each stage of the process are stochastic. We model the remanufacturing system as an open queueing network and use the decomposition principle and expansion methodology to analyze it. Each station in the system is subject to breakdown and has a finite buffer capacity. Repair times, breakdown tunes and service times follow exponential distributions. Optimization is done on the system's expected total cost using a dynamic programming (DP) algorithm. A numerical example is presented to show the applicability of the model.
机译:再制造操作涉及对二手产品,子组件和零件的回收率的高度不确定,这使过程的计划和控制变得复杂。在本文中,我们开发了一种综合程序,该过程确定了再制造操作的每个阶段的最优输入量,在该过程中,过程的每个阶段的回收率都是随机的。我们将再制造系统建模为一个开放排队网络,并使用分解原理和扩展方法对其进行分析。系统中的每个站点都可能发生故障,并且具有有限的缓冲区容量。维修时间,击穿声调和服务时间遵循指数分布。使用动态编程(DP)算法对系统的预期总成本进行了优化。数值例子表明了该模型的适用性。

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