| Summary: | 碩士 === 輔仁大學 === 管理學研究所 === 92 === The combination of specific equipment usage limitation and scheduling get great attention in recent years. The main reason of emphasized combination lies in the fact that renting machines issues emerge. Traditionally, scheduling research focuses on orders completion or the dates of delivery. However, machines usage percentage or time also affects scheduling on practical sides. Even in the shortest period of sum orders completion, longer usage of expensive equipment also costs enterprises higher rents. Therefore, this research tries to find the solution to get the minimum usage of specific equipment to gain more effective equipment usage. On the other side, this research, which is different from those that focus on no waiting for machines. It concentrates on sequential operation, and takes this as prerequisite to find the best solution. This research tries to use integral programming to develop specific equipment model for shortening usage span and diminishing renting costs. In this model, idle time could be adjusted depends on actual situation, which makes the model flexible. Under the situation in which there are 2 specific machines or more, users could also amend the parameters in model to get the best solution. The mathematical model in this research could find the balance between minimum makespan and specific equipment usages. Furthermore, it could satisfy the reasonable order taking.
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