• 论文 •    

钢铁企业复杂库存环境下的精确库存成本建模

纪鹏程,宋士吉,吴澄,邓军   

  1. 1.清华大学 自动化系,北京100084;2.中国人民大学 统计学院,北京100872
  • 出版日期:2010-02-15 发布日期:2010-02-25

Exact inventory cost modeling in complex inventory environment for iron & steel enterprises

JI Peng-cheng, SONG Shi-ji, WU Cheng, DENG Jun   

  1. 1.Department of Automation, Tsinghua University, Beijing 100084, China;2.School of Statistics, Renmin University of China, Beijing 100872, China
  • Online:2010-02-15 Published:2010-02-25

摘要: 为减少原料库存巨额的资金占用,研究了多品种多供应商随机提前期环境下的精确库存成本建模问题,给出实时成本统计分析与计算的方法,建立了精确的多品多供应商随机提前期库存成本函数的数学模型,并对“保证供应、均匀到港”等约束给出了数学上的形式化表示。分析了再订购点取值问题。最后,利用智能方法对模型进行优化和仿真,分析了模型的性质,给出优化结果。

关键词: 钢铁企业, 复杂库存, 多供应商, 随机提前期, 精确库存成本, 数学模型, 优化

Abstract: To reduce huge amount of funds used for raw materials inventory, the exact inventory cost modeling with multi-items, multi-suppliers and random lead times was studied. The statistics analysis and calculation method for real-time cost was presented, and the exact mathematical model of inventory cost function with multi-items, multi-suppliers and random lead times was established. Constraints of overseas procurement, which were guaranteeing supply and arriving evenly were formally expressed. The reorder points of multi-items were also analyzed. Finally, the model was optimized and simulated by intelligent optimization algorithm. Model properties were analyzed and the optimization results were provided.

Key words: iron and steel enterprises, complex inventory, multi-suppliers, random lead time, exact inventory cost, mathematical model, optimization

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