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首页> 外文期刊>International Journal of Production Research >On the backlog-sequencing decision for extending the applicability of ConWIP to high-variety contexts: an assessment by simulation
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On the backlog-sequencing decision for extending the applicability of ConWIP to high-variety contexts: an assessment by simulation

机译：关于将ConWIP的适用性扩展到多种情况的积压排序决策：模拟评估

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摘要

Constant Work-in-Process (ConWIP) is a card-based control system that was developed for simple flow shops - a lack of load-balancing capabilities hinders its application to more complex shops. In contrast, load balancing is an integral part of Workload Control, a production planning and control concept developed for high-variety environments. One means of load balancing evident in the Workload Control literature is through the use of a capacity slack-based backlog-sequencing rule. This study therefore investigates the potential of the backlog-sequencing decision to improve load balancing in the context of ConWIP, thereby making it suitable for more complex, high-variety environments. Using simulation, we demonstrate that: (i) the choice of backlog-sequencing rule significantly impacts throughput times and tardiness-related performance measures; and (ii) capacity slack-based sequencing rules achieve significant performance improvements over classical' ConWIP backlog-sequencing rules. These results significantly extend the applicability of ConWIP. Results from the Workload Control literature however do not directly translate across to ConWIP. The simplified release procedure of ConWIP makes backlog-sequencing based on planned release dates dysfunctional. This negatively impacts the performance of modified capacity slack-based sequencing rules that were recently shown to be the best choice for Workload Control.
机译：恒定的在制品（ConWIP）是一种基于卡的控制系统，专门为简单的流程车间而开发-缺乏负载均衡功能阻碍了其在更复杂的车间中的应用。相反，负载平衡是Workload Control不可或缺的一部分，Workload Control是为各种环境开发的生产计划和控制概念。 Workload Control文献中明显的一种负载平衡方法是使用基于容量松弛的积压排序规则。因此，本研究调查了积压排序决策在改善ConWIP上下文中的负载平衡方面的潜力，从而使其适用于更复杂，变化多端的环境。通过仿真，我们证明：（i）积压排序规则的选择会显着影响吞吐时间和与时延相关的性能指标； （ii）与传统的ConWIP积压排序规则相比，基于容量松弛的排序规则实现了显着的性能改进。这些结果大大扩展了ConWIP的适用性。但是，来自“工作负载控制”文献的结果不会直接转换为ConWIP。 ConWIP的简化发布过程使按计划发布日期进行的积压排序无法正常工作。这会对修改后的基于容量松弛的排序规则的性能产生负面影响，最近这些规则被证明是工作负载控制的最佳选择。

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