Journal of Northeastern University:Natural Science ›› 2015, Vol. 36 ›› Issue (10): 1506-1511.DOI: 10.3969/j.issn.1005-3026.2015.10.030

• Mechanical Engineering • Previous Articles     Next Articles

Scheduling Multiple Orders per Job with Various Constraints

ZHOU Bing-hai, WANG Teng, FANG Teng   

  1. School of Mechanical Engineering, Tongji University, Shanghai 201804, China.
  • Received:2014-03-12 Revised:2014-03-12 Online:2015-10-15 Published:2015-09-29
  • Contact: ZHOU Bing-hai
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Abstract: Taking a comprehensive consideration of the characteristics of multiple product types, the past-sequence-dependent (p-s-d) setup time and the deterioration effects constraints in processes of wafer fabrication, with an objective function of minimizing total weighted earliness-tardiness penalties cost, a mathematical programming model of scheduling multiple orders per job (MOJ) in a single machine was built. On this basis, the decision-making variables were separated, and a modified genetic algorithm-ant colony optimization (MGA-ACO) algorithm adopting two-level encoding mechanism was put forward. Genetic algorithm was converged to the process of dynamic and adaptive ant colony iterations. To improve the algorithm convergence performance, a modified rule of apparent tardiness cost with setups (ATCS) was applied. Finally, the simulation results indicated that the developed algorithm is valid and feasible.

Key words: multiple product types, p-s-d setup time, deterioration effects, scheduling, MGA-ACO algorithm

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