具有模糊提前期内需求的库存模型  

Inventory Model with Fuzzy Demand during Lead Time

作　　者：代颖[1] 

机构地区：[1]西南交通大学经济管理学院,四川成都610031

出　　处：《西南交通大学学报》2008年第4期514-518,共5页Journal of Southwest Jiaotong University

基　　金：国家社会科学基金项目(07CJY019);四川省教育厅人文社会科学研究课题(川油气科SK06-14);西南交通大学基础科学研究基金的资助(2005B01)

摘　　要：为解决具有模糊提前期内需求的库存管理问题,针对采用(Q,r)库存策略的单类物品库存系统,基于模糊理论建立了提前期内需求为三角模糊数的最优订货批量模型,并用模糊数的期望值法求得提前期内需求的期望值以及重心法解模糊化求得模糊期望缺货量,从而确定最佳订货点和最优订购批量,使得年库存总成本最小.最后,给出了一个算例,以验证该模型的有效性.To deal with the inventory management problem with fuzzy demand during the lead time, the fuzzy set theory was applied to single-product inventory systems using （Q, r） policy. Uncertain demand during the lead time was characterized by a triangular fuzzy number, and an optimal order quantity model was established. The expected value method was adopted to obtain the expected value of the fuzzy demand during the lead time, and the center of gravity defuzzification method was applied to calculate the fuzzy expected value of the shortage. As a result, the minimized expected total annual cost was determined by a corresponding order point and quantity. Finally, a numerical example was given to illustrate the validity of the established model.

关 键 词：库存模型 模糊需求 提前期 (Q r)策略 

分 类 号：F253.4[经济管理—国民经济]