2004 年 39 巻 9 号 p. 626-634
Probabilistic safety assessment (PSA) has come to occupy an important position in quantitative reliability evaluation for large-scale systems. Fault tree analysis and event tree analysis are already popular and very effective methods of quantitative evaluation. These methods, however, are not easy for many common users. GO-FLOW methodology is not only effective but also convenient for practical use in large-scale system reliability evaluation.
It can be considered that a ship is a huge plant or a large-scale system. Because a ship cruising at sea can never simply obtain help from others, it is important that high reliability and self-contained repairability be provided for safe operation of the ship. GO-FLOW methodology is an effective means of conducting probabilistic safety assessment on a ship as a system.
The purpose of this study was creation of a reliability model (Ver. 2) and a probabilistic safety assessment for the propulsive plant on the ship. Actual safety of the propulsive plant on the ship was made clear by quantitative analysis using GO-FLOW methodology.