Assembly Line Balancing Based on Beam Ant Colony Optimisation

Jiage Huo, Zhengxu Wang, Felix T.S. Chan, Carman K.M. Lee, Jan Ola Strandhagen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


We use a hybrid approach which executes ant colony algorithm in combination with beam search (ACO-BS) to solve the Simple Assembly Line Balancing Problem (SALBP). The objective is to minimise the number of workstations for a given fixed cycle time, in order to improve the solution quality and speed up the searching process. The results of 269 benchmark instances show that 95.54% of the problems can reach their optimal solutions within 360 CPU time seconds. In addition, we choose order strength and time variability as indicators to measure the complexity of the SALBP instances and then generate 27 instances with a total of 400 tasks (the problem size being much larger than that of the largest benchmark instance) randomly, with the order strength at 0.2, 0.6 and 0.9 three levels and the time variability at 5-15, 65-75, and 135-145 levels. However, the processing times are generated following a unimodal or a bimodal distribution. The comparison results with solutions obtained by priority rule show that ACO-BS makes significant improvements on the quality of the best solutions.

Original languageEnglish
Article number2481435
JournalMathematical Problems in Engineering
Publication statusPublished - 1 Jan 2018

ASJC Scopus subject areas

  • General Mathematics
  • General Engineering


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