考虑回收品品质可靠性的库存管理策略研究

摘要

回收品品质下降是一个客观事实，企业为了在成本支付和产品可靠性之间达成均衡，往往需要设置一个回收品可靠性阈值。本文考察电子产品的订购、到达、销售、回收、剔除过程，以新产品订购成本、新旧产品库存持有成本、产品回收成本、回收品检测清洁成本、短缺成本、抛弃成本和潜在风险成本为目标函数，获得“可靠性阈值-补货策略”的近优解。企业案例仿真结果表明，（s，S）补货策略优于（s，Q）补货策略；敏感性分析表明，新产品单位变动成本、新旧产品单位库存成本对企业成本影响较大；基于分析结果，为企业管理决策提出了参考意见。%The reliability of product will gradually decline during the process of recycling .In order to gain a bal-ance between cost and reliability , enterprises should set a reliability threshold .This paper observes the circula-tion of newly electronic items and returned items , sums up the ordering cost , holding cost , recycled cost , check cost, shortage cost , disposal cost and reliability risk cost , and gains an approximate solution about reliability threshold and acquisition .Data from an enterprise proves that , ( s,S) acquisition policy is more economical than that of ( s,Q) .Sensitivity analysis shows that , unit newly item acquisition cost and unit holding cost work on the total cost .According to those analyses , this paper gives some suggestions to the enterprise .