Influence Factor of Naval Vessel’s Equipment under Optimized Sailing Strategy

A naval vessel is a large and complex weapon system that can be divided into three hierarchical structures: ship-subsystem-equipment. Optimization of the sailing strategy has improved the use of the equipment and thus the success ratio of sailing missions. Still, the contribution of reliability and maintainability of different hierarchical structures to the sailing mission success ratio has not been quantitatively analyzed. To solve this problem, the fundamental principle for optimizing each subsystem is proposed based on mathematical analysis to determine the improvement sequence at the subsystem level; at the equipment level, the reliability maintainability parameters are adjusted to observe the change in the mission success probability, influence factors are calculated as the basis for the improvement of the underlying equipment. In practical engineering applications, technical and economic costs also need to be considered, and difficulty degree is defined. The difficulty degree and influence factor are integrated, and the specific reliability engineering, specific maintainability engineering, and reliability & maintainability integrated engineering are implemented respectively. The improvement sequence of each equipment is determined under the optimized sailing strategy to provide a reference and basis for the implementation of naval equipment improvement projects.