Virtual Manufacturing Cell Rescheduling Considering Multiple Strategy Combinations and Machine Failures

W. Han, Zhe Lv, Na Lv
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Abstract

In terms of rescheduling problems under machine failure, this paper proposes a virtual manufacturing cell rescheduling method based on the combination of multiple strategies. According to the systematic analysis of the cost factors of rescheduling, the cost-evaluation function of the rescheduling scheme is constructed. Then the virtual manufacturing cell rescheduling model is constructed with the goal of minimizing the maximum completion time and the machine adjustment deviation, and which is solved by NSGA-Ⅱ algorithm. The result of the numerical experiment shows that the combined applicable of multiple rescheduling strategies is beneficial to maintain the applicability of the rescheduling scheme under different disturbance situations, improve rescheduling efficiency, reduce disturbance deviation, and reduce disturbance repairing costs.
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考虑多策略组合和机器故障的虚拟制造单元重调度
针对机械故障下的重调度问题,提出了一种基于多策略组合的虚拟制造单元重调度方法。在系统分析重调度成本因素的基础上,构建了重调度方案的成本评价函数。然后以最大完成时间和机器调整偏差最小为目标,构建虚拟制造单元重调度模型,并采用NSGA-Ⅱ算法进行求解。数值实验结果表明,多种重调度策略的联合应用有利于保持重调度方案在不同扰动情况下的适用性,提高重调度效率,减少扰动偏差,降低扰动修复成本。
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