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Dynamic analysis of a lean cell under uncertainty

机译:不确定条件下精益电池的动态分析

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One of the ultimate targets of lean manufacturing paradigm is to balance production and produce at takt time in production cells. This paper investigates the performance of a lean cell that implements the previous lean goals under uncertainty. The investigation is based on a system dynamics approach to model a dynamic lean cell. Backlog is used as a performance metric that reflects the cell's responsiveness. The cell performance is compared under certain and uncertain external (demand) and internal (machine availability) conditions. Results showed that although lean cell is expected to be responsive to external demand with minimum waste, however, this was not the case under the considered uncertain conditions. The paper proposes an approach to mitigate this problem through employing dynamic capacity policy. Furthermore, the paper explores the effect of the delay associated with the proposed capacity policies and how they affect the lean cell performance. Finally, various recommendations are presented to better manage the dynamics of lean manufacturing systems.
机译:精益制造范式的最终目标之一是在生产单元中平衡生产和节拍时间的生产。本文研究了在不确定性条件下实现先前精益目标的精益电池的性能。该调查基于系统动力学方法来对动态精益电池进行建模。待办事项用作反映该单元响应能力的性能指标。在特定和不确定的外部(需求)和内部(机器可用性)条件下比较电池性能。结果表明,尽管精益电池有望以最少的浪费对外部需求做出响应,但是,在考虑的不确定条件下情况并非如此。本文提出了一种通过采用动态容量策略来缓解此问题的方法。此外,本文探讨了与建议的容量策略相关的延迟的影响以及它们如何影响精益电池性能。最后,提出了各种建议,以更好地管理精益制造系统的动态。

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