A Generic Mechanism for Repairing Job Shop Schedules
Author(s)Raheja, Amritpal Singh; Reddy, K. Rama Bhupal; Subramaniam, Velusamy
Reactive repair of a disrupted schedule is a better alternative to total rescheduling, as the latter is a time consuming process and also results in shop floor nervousness. The schedule repair heuristics reported in the literature generally address only machine breakdown. This paper presents a modified Affected Operations Rescheduling (mAOR) approach, which deals with many of the disruptions that are frequently encountered in a job shop. The repair of these disruptions has been decomposed into four generic repair actions that can be applied singularly or in combination. These generic repair actions are evaluated through a simulation study with the performance measures of efficiency and stability. The results indicate the effectiveness of the mAOR heuristic in dealing with typical job shop disruptions.
Innovation in Manufacturing Systems and Technology (IMST);
schedule repair, job shop disruptions