フレキシブル生産システム(FMS)の設計・運用とシミュレータ : 第2報、治工具のモデル化とスケジューリング

抄録

In order to estimate FMSs, a simulator was developed, and various types of scheduling were investigated. This simulator uses the variable increment method as the time control, and introduces a modeling technique using events. To enable a real simulation, this simulator not only has the function of modeling the workers activities but also of modeling the jigs and machine tools. Scheduling for selecting the machine to handle the parts was formulated. Techniques utilized several kinds of progress information, that is, the percent of each machine utilization in dynamics of integrated production time for parts. For the scheduling techniques, the percent of machine utilization and residence time were chosen as criteria, and simulation experiments were performed for the application example : the results are discussed in this paper. It was found that due to the functions of the simulator, analysis of FMSs under various conditions could easily be performed.