2012 Fiscal Year Final Research Report
Development of new wind power generation method using wake galloping
| Project/Area Number |
21560502
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Okayama University |
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Principal Investigator |
HIEJIMA Shinji 岡山大学, 大学院・環境生命科学研究科, 准教授 (50284526)
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| Project Period (FY) |
2009 – 2012
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| Keywords | ウェイクギャロッピング / 流体励起振動 / フィードバック制御 / 風力発電 / 再生可能エネルギー |
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| Research Abstract |
In order to develop a new wind power generation method using feedback amplification of the wind-induced vibration caused between two tandem circular cylinders, wind tunnel experiments were conducted. The effects of two feedback control parameters on the vibrational property were investigated through the experiments. The maximum vibration amplitude is obtained when the windward cylinder is vibrated with the time lag corresponding to 80% of the characteristic period of the leeward cylinder, and prescribed by the control gain independently of the wind speed. Although the vibration amplitude is enhanced in proportion to the control gain, this enhancement diminishes beyond a critical gain.
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