中文摘要：

在一个两阶段生产系统中,针对第二阶段应用单通用件的情况,引入承诺交货期因素,分别建立了第一阶段无通用件、单通用件、双通用件库存模型,考查了承诺交货期对通用件库存模型总成本的影响,分析了三类模型相应的最优库存水平。通过算例,说明了在一个第二阶段采用单通用件的两阶段生产系统中,当通用件与非通用件的单位采购成本相同时,并非第一阶段使用越多的通用件,总成本就越低。

英文摘要：

In a two-stage production system,for the case of single component commonality in the second stage,the guaranteed delivery time is considered and the first-stage non-component,single-component,double-component commonality inventory models are established.The impact of guaranteed delivery time on the total costs is studied.The optimal inventory levels of the three models are analyzed.Numerical examples suggest that when the unit purchase costs of common components and non-common components are equal,the more use of component commonality can not generate the lower total costs.