The Study of a DBR-based Shop Floor Scheduling Approach

• Main Authors: Ching-Tzung You, 游慶宗
• Other Authors: Li-Chih Wang
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/12850591158906050428

碩士 === 東海大學 === 工業工程研究所 === 83 === The Shop Floor Scheduling plays an important role in the process of the production activity. The successfulness of the Shop Floor Control System is highly dependent on the efficiency and effectiveness of it''s corresponding scheduling function. An unqualified scheduling system may harm the manufacturing system''s throughput, increase the level of work-in-process in the shop floor ,and delay the order''s promised due date.The throughput of a manufacturing system is decided by the CCR. But the traditional scheduling methods seldomly focus on the scheduling of the CCRs. Drum buffer rope (DBR) is an approach emphasizing on the CCR''s scheduling employing the raw material releasing mechanism to release raw material properly. The scheduling quality of DBR approach is dependent on the operation sequence of CCR involved in the scheduling horizon. In order to solve this problem ,the objective of this research will give a way how to identify the CCR and exercise tabu- search method to find out a sub-optimal solution of scheduling sequence about CCR. Then according to the scheduling sequence， we introduce backward and forward approach to schedule non- CCRs. Finally, we can decide the raw material released time and shipping time that can use to control the release of raw material. The scheduling method that this research developed can offer to the schedule of CCR a good thinking point only and still give a complete scheduling approach that it is very helpful on promoting manufacturing system''s performance.