Two-machine flowshop scheduling with truncated learning to minimize the total completion time

  • Authors:
  • Der-Chiang Li;Peng-Hsiang Hsu;Chin-Chia Wu;T. C. E. Cheng

  • Affiliations:
  • Department of Industrial and Information Management, National Cheng Kung University, No. 1, University Road, Tainan City 70101, Taiwan, ROC;Department of Industrial and Information Management, National Cheng Kung University, No. 1, University Road, Tainan City 70101, Taiwan, ROC;Department of Statistics, Feng Chia University, Taichung, Taiwan, ROC;Department of Logistics and Maritime Studies, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2011

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Abstract

Scheduling with learning effects has received a lot of research attention lately. However, the flowshop setting is relatively unexplored. On the other hand, the actual processing time of a job under an uncontrolled learning effect will drop to zero precipitously as the number of jobs increases. This is rather absurd in reality. Motivated by these observations, we consider a two-machine flowshop scheduling problem in which the actual processing time of a job in a schedule is a function of the job's position in the schedule and a control parameter of the learning function. The objective is to minimize the total completion time. We develop a branch-and-bound and three simulated annealing algorithms to solve the problem. Computational results show that the proposed algorithms are efficient in producing near-optimal solutions.