通过生产线向单元转化而减人的多目标优化模型

Multi-objective Optimization Model of Line-Cell Conversion Towards Reducing Workers

在电子制造业中,越来越多的企业采用了单元生产方式,即通过生产线向单元的转换来应对多批次、小批量的需求,以提高生产效率.研究了在不增加产品流通时间的前提下,通过生产线向单元转化来减少工人数.生产线转化成单元是一个NP-hard问题,针对以减人为主要目标的生产线向单元转化的特点建立数学模型,采用NSGA-II算法来求解.最后,通过实例验证了通过生产线向单元转化可以使企业在不增加产品流通时间的前提下减少工人的数量.

To improve the production efficiency,considering the multi-batch and small-volume demand of the electronics manufacturing industry,more and more companies adopted the cell production conversed from the traditional assembly convey line.It was researched to reduce the workers by the line-cell conversion with the constraint of not increasing the total throughput time.According to the feature of the line-cell conversion towards reducing workers,a multi-objective model was set up.The line-cell conversion was an NP-hard problem,and so an algorithm based on NSGA-II was proposed to solve it.Several numerical simulation experiments were performed to illustrate that the line-cell conversion can be used to reduce workers without increasing the total throughput time at the same time.