• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2023, Vol. 59 ›› Issue (16): 427-434.doi: 10.3901/JME.2023.16.427

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Research on Composite Dispatching Rules of Assembly Job Shop Scheduling Based on Gene Expression Programming

Lü Haili1,2,3, HUANG Zhiwen1,2,3, CHEN Jianhua1,2, WANG Zhengguo1,2, WU Shu1,2, HAN Guozhen4   

  1. 1. School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063;
    2. Institute of Logistics System Science and Engineering, Wuhan University of Technology, Wuhan 430063;
    3. Ministry of Education Engineering Research Center for Port Logistics Technology and Equipment, Wuhan 430063;
    4. Wuhan Tianma Microelectronics Co., Ltd., Wuhan 430000
  • Received:2022-08-10 Revised:2022-11-12 Online:2023-08-20 Published:2023-11-15

Abstract: Dispatching rules is a simple and effective approach for job shop scheduling problems. Aiming at an assembly job shop scheduling problem(AJSP), a simulation model is established and a gene expression programming(GEP) algorithm is proposed to automatically generate and search optimal dispatching rules. Simulation results show that under the two optimization objectives of minimizing mean flow time and mean absolute deviation, the GEP algorithm can find better solutions than existing commonly used dispatching rules and shows advantages in computation time and solving quality, together with a certain level of robustness.Specifically, a feature selection scheme is designed to reduce the search space and improve search performance. A dynamic self-adaptive scheme is also applied to improve the search ability of GEP, and the effectiveness of the proposed algorithm is proved by simulating experiments constructed for different production environments.

Key words: gene expression programming, assembly job shop scheduling, dispatching rules, feature selection

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