バイパスラインのある混合品種組立ラインにおける投入順序決定問題 : 部品使用速度と作業負荷の平準化を評価基準とした場合

概要

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There exists a large variation in the assembly times among different product models, for example, in the manufacturing of trucks and prefabricated houses. This reduces production efficiency and may cause a line stoppage. The variation of the assembly times can be reduced by installing a bypass subline which processes a part of assembly operations of products with relatively longer assembly times. Even if installing the bypass subline, both the part usage rates and work loads should be leveled by sequencing different products. In this paper, the sequencing problem with goals of levelling both the part usage rates and work loads is formulated as a nonlinear integer programming problem. Two algorithms based on dynamic programming and goal chasing method are developed to solve the problem and their efficiency is discussed through numerical examples.
1998-09-25