• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2021, Vol. 57 ›› Issue (10): 220-230.doi: 10.3901/JME.2021.10.220

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Energy Saving Optimization Method of Flexible Job Shop Scheduling Considering Preventive Maintenance

LI Congbo1, WANG Rui1, KOU Yang2, Lü Yan1, ZHAO Xikun1   

  1. 1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030;
    2. Sichuan Jiuzhou Electric Appliance Group Co., Ltd., Mianyang 621051
  • Received:2020-05-15 Revised:2021-02-25 Online:2021-05-20 Published:2021-07-23

Abstract: With the surging energy cost and environmental impacts, strategies to achieve energy-efficient production have attracted increasing concerns of the manufacturing enterprises. In the flexible job shop scheduling process, machine tools’ breakdown and maintenance will lead to conflicts of machining resource, increase of energy consumption and delay of completion time. In order to reduce the machining interruption caused by machine tool breakdown in the actual flexible job shop machining process, an energy-saving optimization method for flexible job shop scheduling considering equipment preventive maintenance is proposed. Firstly, the energy consumption characteristics of flexible job shop are analyzed, then the energy-saving optimization model of flexible job shop scheduling considering equipment preventive maintenance is established, and the energy-saving optimization solution method based on which a rescheduling algorithm is proposed in the form of a heuristic framework. Finally, the effectiveness of the proposed method is verified by case comparison analysis.

Key words: flexible job shop, scheduling, preventive maintenance, energy-saving, multi-objective optimization

CLC Number: