| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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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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