System Reliability Analysis of a Ship Longitudinal Structure

• Main Authors: Chih-ling Hsieh, 謝智陵
• Other Authors: Joe-ming Yang
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/85241454775917220774

碩士 === 國立成功大學 === 系統及船舶機電工程學系碩博士班 === 95 === One of the best ways to evaluate the safety of structures in highly uncertain and complicated ocean environment is to use the ultimate strength analysis and the system reliability analysis. Generally, the ship hulls are made of stiffened plates. In this study, two typical box girders with various stiffeners are employed as ship-type models for system reliability analysis. In this research the first order second-moment reliability method is applied to evaluate the system reliability of ship structures. First, a ship-type box girder is selected as examples to evaluate the system reliability. Parallel system of plates and stiffeners with associated plates are considered. Finally, the failure probability on the midship section of bulk carrier is evaluated by using the system reliability method. It is believed that the global probability of failure of a ship can be obtained by utilizing the above system reliability analysis method.