关键词: 节能, 动态事件, 柔性作业车间重调度, 多工艺路线

Abstract: Dynamic events will occur in the process of mechanical processing,such as urgent job arrivals or machine breakdowns,which interfere the execution of the scheduling and affect the energy consumption and makespan.Considering the flexible of process routes and machine tool selection in the flexible job shop,the flexible job shop scheduling problem under the dynamic events trigger has higher flexibility and adaptability,and has significant energy-saving optimization space.Therefore,a flexible job shop rescheduling optimization method for energy-saving under the dynamic events with machine breakdowns and urgent job arrivals was proposed.The characteristic of energy consumption composition of workpiece machining when the dynamic events occur were analyzed.Then the flexible job shop rescheduling optimization model was established,and the model was solved based on Multi-Objective Gravitational Search Algorithm (MOGSA).The validity of the proposed model was verified by the comparison of different rescheduling schemes.

Key words: energy-saving, dynamic events, flexible job shop rescheduling, alternative process routes