| Reliability-Based Optimal Design for Very Large Floating Structure |
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| 作者姓名： | 张淑华 |
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| 作者单位： | Div.of Structural System Engineering，Dept.of Social and Environmental Engineering，Graduate School of Engineering，Div.of Structural System Engineering，Dept.of Social and Environmental Engineering，Graduate School of Engineering Hiroshima University，Higashi Hiroshima7398527，JapanCollegeofEngineering，OceanUniversityofChina，Qingdao266071，China，Hiroshima University，Higashi Hiroshima7398527，Japan |
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| 基金项目： | TheprojectwassupportedbybothofScholarshipCouncilofChinaandMinistryofEducation，Science，Sportsand
LiteratureofJapan (GrantNo .2 0 8370 2 0 ) |
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| 摘 要： | 1 .ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅａｐｐｒａｉｓａｌｏｆａｇｏｏｄｄｅｓｉｇｎｆｏｒａｖｅｒｙｌａｒｇｅｆｌｏａｔｉｎｇｓｔｒｕｃｔｕｒｅ(ＶＬＦＳ)ｔｈａｔｗｉｌｌｓｅｒｖｅｉｎａｓｐｅｃｉ ｆｉｅｄｏｃｅａｎａｒｅａｒｅｑｕｉｒｅｓｔｈａｔｔｈｅｓｔｒｕｃｔｕｒａｌｓｙｓｔｅｍｂｅｅｃｏｎｏｍｉｃａｌｌｙｄｅｓｉｇｎｅｄ ,ｔｈｅｒｅｑｕｉｒｅｍｅｎｔｓｆｏｒｉｔｓｆｕｎｃｔｉｏｎｂｅｓａｔｉｓｆｉｅｄａｎｄｔｈｅｓｔｒｕｃｔｕｒｅｋｅｅｐｓｓｔａｂｌｅｉｎｉｔｓｗｈｏｌｅｓｅｒｖｉｃｅｐｅｒｉｏ…
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Reliability-Based Optimal Design for Very Large Floating Structure |
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| FUJIKUBO Masahiko.Reliability-Based Optimal Design for Very Large Floating Structure[J].China Ocean Engineering,2003,17(1). |
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| Authors: | FUJIKUBO Masahiko |
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| Abstract: | Costs and losses induced by possible future extreme environmental conditions and difficulties in repairing post yielding damage strongly suggest the need for proper consideration in design rather than just life loss prevention. This can be addressed through the development of design methodology that balances the initial cost of the very large floating structure (VLFS) against the expected potential losses resulting from future extreme wave induced structural damage. Here, the development of a methodology for determining optimal, cost effective design will be presented and applied to a VLFS located in the Tokyo bay. Optimal design criteria are determined based on the total expected life cycle cost and acceptable damage probability and curvature of the structure, and a set of sizes of the structure are obtained. The methodology and applications require expressions of the initial cost and the expected life cycle damage cost as functions of the optimal design variables. This study includes the methodology, total life cycle cost function, structural damage modeling, and reliability analysis. |
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| Keywords: | very large floating structure reliability optimal design initial cost expected life cycle damage cost |
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