Abstract: To satisfy the requirements of automobile sequence in different processes of automobile production line,a collaborative sequencing optimization method for multi-stage automobile production line was proposed to improve the collaborative production capacity of multi-process workshop and reduce the production cost.The requirements of different processes were analyzed for automobile production line,and the re-sequence cost of the buffers was established by considering traditional optimization objectives such as the number of model changes in welding shop,the number of color changes in painting shop,the total overload and idle time in assembly shop,the material consumption rate in assembly shop.On this basis,a multi-objective optimization model of collaborative sequencing for automobile multi-stage production line was established.A NSGA-III based on inbound and outbound rules was used to optimize the model.Finally,the effectiveness of the proposed model and method was verified by a case study.

Key words: automobile body, multi-stage production line, collaborative sequencing, multi-objective optimization

摘要： 为满足汽车整车生产线不同工艺车间对车身序列的不同需求,提高汽车生产线多工艺车间的协同生产能力并降低生产成本,提出一种面向汽车整车多级生产线的协同排序优化方法。分析了汽车生产过程中不同工艺车间对车身序列的不同需求,在考虑焊接车间车型更换次数、涂装车间颜色更换次数、总装车间总超载和空闲时间、总装车间物料消耗均衡等传统优化目标的基础上,搭建了缓冲区重排序成本的目标函数,并以此构建了汽车整车多级生产线协同排序多目标优化模型,然后采用基于启发式出入站规则的第三代非支配排序遗传算法对模型进行优化求解。最后通过某公司的实际生产案例,验证了所提模型和方法的有效性。

关键词: 汽车整车, 多级生产线, 协同排序, 多目标优化