AN ENERGY-EFFECTIVE PRODUCTION SCHEDULING STRATEGY FOR HIERARCHICAL CONTROL OF STEEL MANUFACTURE (GOAL PROGRAMMING, NO-DELAY FLOOR SHOP SCHEDULING, COMPUTER-INTEGRATED PLANNING)
Abstract
When faced with planning and control of a very large scale of manufacturing system, a hierarchical approach is usually employed. In this research, a three level hierarchical production planning system is designed for steel manufacture. Multiple criterion mathematical modeling is used at higher levels to simulate the expertise and judgement of long-term aggregate planning. At the lower level, a so-called goal chasing heuristic is utilized to build a detailed schedule in order to achieve energy efficiency, subject to the production requirements determined at the higher levels. A simulation model has been written to evaluate the developed system and perform fine-tuning on the detailed production schedule. A computer-integrated data base is needed to integrate the hierarchical decision making structure. Simulation and statistical analysis show the energy effectiveness of the steel making system via employing the proposed hierarchical scheduling strategy.
Degree
Ph.D.
Subject Area
Industrial engineering
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