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http://dx.doi.org/10.9709/JKSS.2010.19.3.055

A Study on the Operational Scheduling for ROK's Navy Ships Using NSGA-II  

Jung, Whan-Sik (국방대학교)
Lee, Jae-Yeong (국방대학교)
Lee, Yong-Dae (현대 모비스)
Abstract
This paper studies the problem seeking an efficient operational scheduling for battle ships in the Republic of Korea's navy. The ships' availability means that their main systems such as weapons, navigation and propulsion are in full operational readiness. If some of the major systems are not ready, then the ships should not be available for operations. It is required to maintain a high level availability under the limited resources as it determines the strength of ROK's navy. However, it will result in inefficiencies if some ships are operated without proper maintenance only to improve their availability. Thus, this study suggests the operational scheduling for two squadron ships that considers multiple objectives such as availability, overlapping maintenance, and deviation from available ships in a particular week. We applied NSGA-II algorithm to find better solutions for more efficient scheduling. The experiment result reached an efficient solutions after 1,500 generations. Two efficient operational schedules were compared on the basis of three multiple objectives among them.
Keywords
Availability; Operational Scheduling; NSGA-II(Nondominated Sorted Genetic Algorithm-II);
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