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Scheduling policies in multi-product manufacturing systems with sequence-dependent setup times and finite buffers

机译:具有序列相关设置时间和有限缓冲区的多产品制造系统中的调度策略

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摘要

Multi-product production systems with sequence-dependent setup times are typical in the manufacturing of semiconductor chips and other electronic products. In such systems, the scheduling policies coordinating the production of multiple product types play an important role. In this paper, we study a multi-product manufacturing system with finite buffers, sequence-dependent setup times and various scheduling policies. Using continuous-time Markov chain models, we evaluate the performance of such systems under seven scheduling policies, i.e. cyclic, shortest queue, shortest processing time, shortest overall time (including setup time and processing time), longest queue, longest processing time, and longest overall time. The impacts of these policies on system throughput are compared, and the conditions characterising the superiority of each policy are investigated. The results of this work can provide production engineers and supervisors practical guidance to operate multi-product manufacturing systems with sequence-dependent setups.
机译:在半导体芯片和其他电子产品的制造中,典型的是具有序列依赖的建立时间的多产品生产系统。在这样的系统中,协调多种产品类型生产的调度策略起着重要的作用。在本文中,我们研究了具有有限缓冲区,与序列相关的建立时间和各种调度策略的多产品制造系统。使用连续时间马尔可夫链模型,我们在以下七个调度策略下评估此类系统的性能:循环,最短队列,最短处理时间,最短总体时间(包括设置时间和处理时间),最长队列,最长处理时间和总时间最长。比较了这些策略对系统吞吐量的影响,并研究了表征每个策略优越性的条件。这项工作的结果可以为生产工程师和主管提供实践指导,以操作具有序列相关设置的多产品制造系统。

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