摘要

According to the characteristics of the type 2 two-sided assembly line balancing problem, an improved ant colony optimization is proposed. A novel pheromone between two adjacent tasks in the same side station is defined to describe the order relation between them. A new bound strategy is proposed to reduce the search space of ants, by decreasing the upper bound of station times according to the current best solution, and bounding their lower bounds with the mean processing time of assigned stations. An improved task assignment rule is applied to assign the suitable task to station, in which three kinds ideal task with different prior permissions are used. A side station determination rule is proposed to balance the increase speed of both side times. Computational results show the effectiveness and stability of proposed algorithm.

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