中文摘要：

研究需求和再制造率不确定下整个再制造系统的综合协调问题,帮助再制造商制定各环节批量决策以实现整体最优.首先,考虑对应其拆卸后不同质量状况的差异再制造成本,构建能反映质量成本的拆卸和再制造总成本模型;接着,考虑新零部件采购提前期,利用两阶段利润函数的思想,构建包括拆卸、再制造和重新装配3个子系统中所有成本因素、以利润最大化为目标的优化模型;然后,求解最优再制造/拆卸比率、拆卸批量、再制造/采购批量和重新装配批量;最后,通过算例验证并讨论平均再制造零部件获取成本对再制造批量、采购批量、拆卸和再制造总成本以及总利润的影响,再制造/拆卸比率和单位拆卸成本的关系.

英文摘要：

In order to realize the overall optimum,the integrated optimization problem on Lot Sizing of the whole remanufacturing system with uncertain demand and reprocessing ratio is studied in this paper. First,a model describing the total disassembling and reprocessing cost is presented based on the defined Ratio of Lotsizing of reprocessing and disassembling and the variable reprocessing cost,which corresponds to their different quality conditions,of the disassembled parts. Second,an optimization model is proposed that considers all costs that occur during the remanufacturing process——including disassembling,reprocessing and reassembling sub-systems——and unknown procurement lead time,based on the principle of two-stage profit function to maximize the profit. Third,the optimal ratio of lot-sizing of disassembling and reprocessing,as well as lotsizing of disassembling,of reprocessing / purchasing,and of reassembling,are determined through the optimization model. Finally,the effects of different unit acquisition cost of remanufactured parts on lot-sizing of reprocessing,lot-sizing of purchasing,cost of disassembling and reprocessing,and total profit of the whole remanufacturing; the relationship between the ratio of reprocessing and disassembling and unit disassembling are discussed by numerical examples.