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Lead time reduction through cyclic scheduling in a job shop

机译：通过在工作商店中的循环调度减少时间

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This paper describes the development of a Lean scheduling system for job shop environments for improving flow. The authors introduce a cyclic scheduling system with fixed interval length and time slots, which can be represented by a 'production wheel' (as a variant of EPEI scheduling). An iterative procedure to design the production wheel is proposed. Using the MSSI heuristic method, the production orders have to be scheduled on the wheel of the first machine(s) in the production chain. This heuristic minimizes the number of set-ups and the total amount of change-over time within the scheduling interval. Due to the limited number of time slots on the production wheel, it is possible to keep the total Work-In-Process (WIP) under control and consequently, also the lead times. A case study in a manufacturing facility in Belgium shows that the introduction of this scheduling system can reduce the average lead time by over 40%. This paper also explains how the production wheel can serve as a visual management tool to monitor and control the process status and progress.
机译：本文介绍了车间作业环境，可以提高流动精益调度系统的开发。作者介绍具有固定间隔长度和时隙，这可以通过一个的生产轮'（如EPEI调度的变体）来表示的环状调度系统。建议设计生产轮迭代过程。使用MSSI启发式方法，所述生产订单对第一机器（多个）在生产链轮被调度。这种启发式最小化调校的数目和转换时间的调度间隔内的总量。由于在生产车轮时隙的数量有限，所以能够保持总工作在制品（WIP）下控制，因此，也引线倍。在比利时示出了制造设施的案例研究，引入该调度系统可以由40％以上降低平均前置时间。本文还介绍了生产车轮是如何作为一个可视化的管理工具来监视和控制过程的状态和进度。

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