基于遗传算法的TFT-LCD冲压生产线布局优化

Optimization research of TFT-LCD stamping production line layout based on genetic algorithm

为提高薄膜场效应晶体管液晶显示器(TFT-LCD)产品的生产效率,基于遗传算法对传统冲压生产线布局进行优化研究.以生产线物流费用最低为目标函数,生产车间总长度、总宽度和设备间保留最小间距等为约束条件,建立了TFT-LCD冲压生产线数学模型,通过编程求得优化解,并根据生产现场实际与自动化改造情况调整出较好布局优化方案.按优化方案进行试生产的测算结果表明,优化布局方案实施效果良好,与优化前布局相比,生产背板周期时间提高了25%,生产线平衡率提高了10%,日产量提高了33.3%,成本降低了25%.

In order to improve the production efficiency of TFT-LCD（Thin Film Transistor-Liquid Crystal Display） products,the traditional TFT-LCD pressing line layout optimization was researched based on the genetic algorithm in this paper.The mathematical model of TFT-LCD pressing line was established by taking production line logistics minimum cost as the objective function,minimum spacing between equipments,the total length and width of production workshop as the constraint conditions.The optimal solution was solved through programming.According to the actual production site and automated transformation,the better layout optimization program was obtained by adjusting the location of equipment.Trial production was carried out according to the optimization program.Experimental results showed that the optimized layout program had good effects.Compared to the results before optimization layout,the cycle time of producing backplane increased by 25%,production line balancing rate increased by 10%,the daily output increased by 33.3%,and the cost reduced by 25%.