CAJ | 학술논문

由于设备系统的复杂性、设备故障的随机性，备件的需求难以准确确定，相关费用也难以做出准确评估，从而使得备件这一类库存控制问题变得相当复杂。基于备件的需求量与设备使用周期密切相关这一关键点，从设备的整个使用周期入手，结合设备的使用情况，在备件需求率随时间变化的情况下，对备件库存控制问题进行了研究，建立了在设备整个使用周期内使备件总订货成本和存储费用最低的数学模型，给出了备件最佳订货次数、订货时间和订货批量的计算公式。最后给出了一个算例以证明模型的实用性。
유우설비계통적복잡성、설비고장적수궤성，비건적수구난이준학학정，상관비용야난이주출준학평고，종이사득비건저일류고존공제문제변득상당복잡。기우비건적수구량여설비사용주기밀절상관저일관건점，종설비적정개사용주기입수，결합설비적사용정황，재비건수구솔수시간변화적정황하，대비건고존공제문제진행료연구，건립료재설비정개사용주기내사비건총정화성본화존저비용최저적수학모형，급출료비건최가정화차수、정화시간화정화비량적계산공식。최후급출료일개산례이증명모형적실용성。
The demand rate of spare part is usually variable because of the complexity of equipment system and the stochastic malfunction of equipment. Considering the high correlation between quantity demand of spare parts and life of equipment, this paper offers an inventory model to determine the times of order, reorder point and quantity of spare parts during the whole life of equipment on condition that the demand rate of spare parts changes with time while the total cost of ordering and stocking is lowest. Finally, a case based on this model is presented ; Results indicate that optimal times, date and quantity of ordering can be got when the model is used.