Lead-time-oriented production control policies in two-machine production lines
Lead-time-oriented production control policies in two-machine production lines
复制标题
两机生产线中以提前期为导向的生产控制策略
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
A. Horváth
中科院分区：
文献类型：
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作者：
Alessio Angius;M. Colledani;A. Horváth
摘要 在生产易腐烂产品的现代制造系统中，满足目标生产提前期的能力至关重要，在这种系统中，产品质量或价值会随着零件在系统中花费的时间而恶化，并且在由于运输时间表紧张而受到严格的提前期限制的制造环境中。在这些情况下，传统的制造系统工程方法和基于代币的生产控制策略失去了有效性，因为它们的目标是在最小化库存的同时实现目标生产率，而不直接考虑对交货时间分布的影响。在本文中，首次提出了一种针对不可靠制造系统的生产控制策略，旨在最大化尊重给定交货时间约束的零件的吞吐量。所提出的策略共同考虑缓冲区的实际水平和系统中第二台机器的状态，如果存在超过交货时间限制的不可接受的风险，则停止在第一台机器上的零件装载。这项新政策相对于传统看板政策的有效性通过数值分析进行了量化。结果表明，这项新政策通过对生产提前期提供更严格的控制，优于看板政策。这种方法为引入新的以交付周期为导向的生产控制策略铺平了道路，以最大限度地提高实际制造系统的有效吞吐量。
ABSTRACT The ability to meet target production lead times is of fundamental importance in modern manufacturing systems producing perishable products, where the product quality or value deteriorates with the time parts spend in the system, and in manufacturing contexts where strict lead time constraints are imposed due to tight shipping schedules. In these settings, traditional manufacturing system engineering methods and token-based production control policies lose effectiveness as they aim at achieving target production rates while minimizing inventory, without directly taking into account the effect on the lead time distribution. In this article, a production control policy for unreliable manufacturing systems that aims at maximizing the throughput of parts that respect a given lead time constraint is proposed for the first time. The proposed policy jointly considers the actual level of the buffer and the state of the second machine in the system and stops the part loading at the first machine if there is unacceptable risk of exceeding the lead time constraint. The effectiveness of this new policy against the traditional kanban policy is quantified by numerical analysis. The results show that this new policy outperforms the kanban policy by providing a tighter control on the production lead time. This approach paves the way to the introduction of new lead time–oriented production control policies to maximize the effective throughput in real manufacturing systems.