Research on crew-level maintenance strategy for ship equipment based on risk-based decision

Abstract

Aiming at the problems of “excessive maintenance” in the current maintenance strategy for ship equipment and crew level, which leads to insufficient effective use period of equipment, waste of maintenance resources, and difficulty in identifying potential equipment failures, based on the risk decision theory, the ship equipment maintenance strategy model is established, and the analytic hierarchy process and the Delphi method are applied to obtain the dangerous impact value of each fault. On this basis, a reasonable maintenance support strategy is formulated according to the evaluation result to solve the existing maintenance strategy. The existing problems provide theoretical support. Based on the research results of this paper, the risk evaluation model of a shaft system intermediate bearing is established, and the risk maintenance strategy of this bearing is formulated. In order to improve the scientific nature of the maintenance strategy of this bearing, the validity of the research results of this paper is verified at the same time.