On an Operational Model and a Computer Support Environment for Batch Plants Based on Adaptive Scheduling -Application of simulators to obtain initial conditions for rescheduling-

摘要

Scheduling is one of the most important features in production management. Production systems are operated according to schedules in order to minimize production costs and complete the production of given demands by their due dates. However, production cannot be often carried out as scheduled because of problems or accidents such as reactor malfunctions and tardiness of chemical reactions. Even in such situations, production activities must continue while modifying the original schedules. In the present study, an operational model of a production system, which is used to continue production under uncertainties, was considered. A series of experiments was carried out using a computer-aided environment developed based on an object-oriented approach in order to evaluate the performance of the proposed method for various parameters.