MRPシステムにおける生産ロットサイズの決定法に関する研究 : 第2報,多品目をグループ・テクノロジーによりグループ化する場合

概要

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A lot-sizing problem is considered for a group of items with a common manufacturing setup. These items are aggregated in a group by a technique of group technology. The common setup cost for the group is generally less than the sum of each item's setup costs. The cost reduction is expected when lot-sizing is carried out for the group of items rather than for each item independently. The determination of the lot-size for a group of items sharing a common setup is called "group lot-sizing". It is shown by simulation that the percentage of the total cost reduction (PCR) is different due to the dispersion of time between orders (TBO) and the group setup ratio (GSR), the ratio of the group to the sum of each item's setup costs. A small dispersion of TBO or small GSR brings about an increase of PCR. Lastly, the optimal grouping method using dynamic programming and a numerical example is shown.
一般社団法人日本機械学会の論文
1988-11-25