Study on a Floating Point Absorber Type Wave Energy Converter with One Line Tension Leg Mooring
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- Taniguchi Tomoki
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
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- Hirao Shunka C.
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
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- Kokubun Kentaroh
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
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- Nimura Tadashi
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
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- Ishida Shigesuke
- 国立大学法人佐賀大学海洋エネルギー研究センター(研究当時:海上技術安全研究所)
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- Fujiwara Toshifumi
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
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- Inoue Shunji
- 国立研究開発法人海上・港湾・航空技術研究所 海上技術安全研究所
Bibliographic Information
- Other Title
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- 一点緊張係留された並進動揺型波力発電装置に関する研究
- イッテン キンチョウ ケイリュウ サレタ ヘイシン ドウヨウガタハリョク ハツデン ソウチ ニ カンスル ケンキュウ
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Abstract
<p>Motions and load characteristics of a floating point absorber type wave energy converter (WEC) were investigated by tank test considering operation modes. Four typical operation modes of a movable float, namely fixed mode, free mode, controlled mode without power generation, and controlled mode with power generation, were examined by the WEC model with an AC servo motor and a rack and pinion mechanism as a power take-off system in the tank test. The test results show that the operation modes have little effects on surge and pitch motions of the WEC. The measured load, such as mooring tension and axial force on the WEC, on the contrary, were strongly affected by the operation modes. The measured bending moment of the WEC, however, was affected by the WEC surge and pitch motions rather than the operation modes. Additionally, a numerical simulation using a commercial code, the Orcaflex, was conducted, and the simulation results were compared with measured ones. The WEC motions and mooring tension of the simulation results were comparable to those of measured ones in regular waves. The simulated power spectrum density of surge, pitch and mooring tension qualitatively matched measured ones, but they slightly underestimated measured ones at peak wave frequency in irregular waves.</p>
Journal
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- Journal of the Japan Society of Naval Architects and Ocean Engineers
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Journal of the Japan Society of Naval Architects and Ocean Engineers 27 (0), 79-88, 2018
The Japan Society of Naval Architects and Ocean Engineers
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Details 詳細情報について
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- CRID
- 1390564238014347392
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- NII Article ID
- 130007439746
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- NII Book ID
- AA12057769
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- ISSN
- 18811760
- 18803717
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- NDL BIB ID
- 029188157
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed