Coping with the Loss of Pooling Synergy in Cellular Manufacturing Systems
研究将功能布局转为单元制造系统时，因多服务器工作中心拆分导致的池化协同损失，分析通过减少换模时间、批量、变异性和加工时间等措施来缓解对流动时间、在制品库存和机器利用率的影响，并用仿真验证。
The conversion of a functional layout into a cellular manufacturing system involves the partitioning of several multiserver work centers. The loss of pooling synergy in this process can be significant, and this paper investigates the impact of several measures to overcome the adverse effects on flow time, work-in-process inventory and machine utilization. These can be alleviated to a certain extent through reductions in setup times and lot sizes that has been traditionally emphasized in group technology, but a more concerted effort is required. Analytical models are first utilized to investigate the extent to which these adverse effects can be overcome through (1) reduction in setup time, (2) lot sizing, (3) reduction in the variability of process-times and job arrivals, and, (4) reduction in processing times through productivity improvements, all arising from part family-oriented processing. These insights are verified through a simulation comparison of five cellular manufacturing systems with a functional layout system in which optimal lot sizes, low move times and a part family-oriented scheduling rule are used.