6万DWTバルクキャリアの直接強度解析及び実船計測について

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Recently, various type of energy saving bulk carriers have been built in the world. One of them, of 60,000 DWT, was built in Nagasaki Shipyard of Mitsubishi Heavy Industries based on deep techical investigation. In the structural design, 3-Dimensional Finite Element Method and 3-Dimensional Frame work analysis by analysis program "BULDES" which was developed by MHI for special use of bulk carrier design, were applied to investigate the strength of this ship precisely. In order to confirm the reliability of the above strength analysis, full scale measurement was carried out in the structural test of ballast hold. As the results of experiment and analysis the followings were obtained. (1) Theoretical prediction obtained from Frame work analysis as welll as 3-Dimensional Finite Element Method showed a fairly good agreement with the experimental results. It is confirmed that the strength analysis adopted in the structural design is reasonable and has enogh reliability for practical purpose. (2) Load bearing proportion of girders and floors in double bottom structure can be estimated quantitatively by hold aspect ratio and lood condition. (1) Bottom plate and inner bottom plate, which constitute sandwitch panel. are members in bi-axial stress field. Although stresses calculated by frame work analysis are in uni-axial stress field, they are equivalent to stresses calculated by FEM analysis and measured.
社団法人日本船舶海洋工学会の論文
1985-03-22

6万DWTバルクキャリアの直接強度解析及び実船計測について

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