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A Two-stage Method for Solving the Stochastic Two-sided Mixed-model Assembly Line Balancing Problem

  

  1. School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China) 
  • Online:2016-04-30 Published:2016-05-27

Abstract:

To reduce the complexity of solving the stochastic two-sided mixed model assembly line balancing problem, a two-stage procedure of combining a genetic algorithm with simulation analysis is proposed. Firstly, a simplified mathematical programming model is formulated ignoring the constraint of precedence relation between the tasks assigned to the same mated-station, and a set of solutions is obtained by using a genetic algorithm based on a sequence combined encoding. Based on the set of solutions, a simulation model that takes all the constraints of the problem into account is developed. The optimal solution (or suboptimal solution) of the problem is obtained through simulation analysis and evaluation. The analysis of an illustrative example shows that the complexity of solving the problem can be greatly reduced and a satisfactory solution can be obtained with the proposed method.

Key words: two-sided assembly line balancing, stochastic, mixed-model, genetic algorithms, simulation