| Project/Area Number |
25420862
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Yokohama National University |
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Principal Investigator |
MURAI MOTOHIKO 横浜国立大学, 環境情報研究科(研究院), 准教授 (60292893)
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| Co-Investigator(Kenkyū-buntansha) |
HANEDA Ken 国立研究開発法人, 海上技術安全研究所・海洋利用水中技術系, 研究員 (00636813)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 水中プラットフォーム / 浮体式洋上風車 / 波浪中応答 / 流力弾性応答 / 応答低減 / 海洋再生可能エネルギー / 水槽実験 / 弾性応答 / 浮体動揺 / 洋上ウィンドファーム / 波浪中応答解析 |
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| Outline of Final Research Achievements |
A floating offshore wind turbine(FOWT) system is generally recognized as a relatively high cost efficiency system among marine renewable energy systems. It is better to reduce the FOWT response in waves for performance of the electric generation.
In this research, we propose a "Underwater Platform" which supports and mounts multi-FOWT with small response in waves. Then we examine and discuss the performance and effect of the "Underwater Platform" through many experiments and numerical simulations
As a result, when the FOWTs mounted on the Underwater Platform installed in 50m draft, the responses of the FOWTs are reduced to 60% or sometimes 25% of the original response which is observed in the case of which the FOWT is independently in waves. The results are shown in every wave direction condition. It can be said that the effect of the Underwater Platform is confirmed and its quality is much higher than we expected.
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