| Project/Area Number |
08555249
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
海洋工学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MAEDA Hisaaki The University of Tokyo, Professor, 大学院・工学系研究科, 教授 (80013192)
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| Co-Investigator(Kenkyū-buntansha) |
IKOMA Tomoki The University of Tokyo, Assistant, 生産技術研究所, 助手 (50302625)
MIYAJIMA Syougo The University of Tokyo, Lecturer, 生産技術研究所, 講師 (40200175)
RHEEM Chang Kyu The University of Tokyo, Assoiate Professor, 生産技術研究所, 助教授 (70272515)
MASUDA Koichi Nihon University, College of Science and Engineering, Professor, 理工学部, 教授 (10120552)
TOI Yutaka The University of Tokyo, Professor, 生産技術研究所, 教授 (40133087)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥14,200,000 (Direct Cost: ¥14,200,000)
Fiscal Year 1998: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1996: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | Floating Elastic Body / Modal Analysis / Very Large Floating Structure / Floating Airport / Sea Shock / Mega-Float / Sea Floor Earthquake |
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| Research Abstract |
The objectives of this research is as follows ; It develops high precision time domain simulator for the behavior of a very large floating structure under the natural environmental conditions, and it establishes the evaluation systems for lifecycle safety and operability under construction of a very large floating structure.
The natural environmental conditions consist of multi-directional irregular waves, fluctuating wind, fluctuating current and sea shock. The behaviors include elastic deformation, pressure distribution, internal loads, and mooring line load, besides wave field around a floating body, drifting force on a floating body, and low frequency oscillation.
We developed the high precision time domain simulator which predicts elastic behavior of a very large floating structure under the natural environmental conditions including multi-directional waves. We clarified the effect of the rigidity on the behavior of a very large floating structure. We also developed the time domain simulator which estimates the behavior due to the sea shock.
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