動的環境下における部門間生産スケジュールの最適化についての研究(<小特集>生産システム部門研究発表講演会2010)

抄録

Under the volatile economic situation in recent years, manufacturers need to have a high level of flexibility to manage a wide variety of products in varying quantities within a short delivery lead time. But in dynamically changing manufacturing environment, it is quite difficult to optimize interdivisional scheduling which reduces total manufacturing cost of all divisions such as raw material procurement, machining, assembling and shipping following fluctuations in demand. To solve this problem, we propose a new interdivisional scheduling method which decomposes the whole problem into process-dependent problems using inter-process lead time and cooperates between processes by applying Lagrangian decomposition coordination method. Additionally we designed the method which can adjust inter-process lead time automatically in order to respond to the changing demand of each item. Then we examine the effectiveness of this method by numerical experiments.