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针对定点装配车间不合格品返工导致生产计划及调度不可行的情况,提出一种基于返工延后处理的定点装配车间生产计划与调度集成优化方法.首先制定返工延后处理的粗生产计划;下达计划生产后,将每周期产生的不合格品放入缓冲区,在下周期初时重新调整生产计划并求解新计划下的最优调度,判断其是否满足装配班组负载率要求,不断交替迭代生产计划与调度直至达到计划与调度的均衡和优化.最后通过算例验证了所提出方法的可行性和有效性.
Aiming at the unreasonable production planning and scheduling of rework of fixed-point assembly shop, an integrated optimization method of production planning and scheduling of fixed-point assembly shop based on rework delay is proposed.First, a rough production plan of rework delay is put forward; After planned production, the nonconforming products produced in each cycle will be put into the buffer zone, and the production plan will be readjusted at the beginning of the next cycle and the optimal schedule under the new plan will be solved to determine whether it meets the load requirements of the assembly team and iteratively iterate the production plan and Scheduling until it reaches equilibrium and optimization of planning and scheduling.At last, an example is given to verify the feasibility and effectiveness of the proposed method.