2013 Fiscal Year Final Research Report
Vibration Analysis and Suppression of Wind Turbine Blades and Towers
| Project/Area Number |
23560258
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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 |
Dynamics/Control
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| Research Institution | Nagoya Industrial Science Research Institute (2012-2013)
Nagoya University (2011) |
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Principal Investigator |
ISHIDA Yukio 公益財団法人名古屋産業科学研究所, その他部局等, 研究員 (10092991)
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Tuyoshi 名古屋大学, 工学研究科, 教授 (70273258)
NAGASAKA Imao 中部大学, 工学部, 教授 (60102779)
IKEDA Takashi 広島大学, 工学研究科, 教授 (50115523)
HARATA Yuji 広島大学, 工学研究科, 助教 (00456691)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYASHI Tsutomu 公益財団法人名古屋産業科学研究所, その他の部局等, 研究員 (00093063)
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| Project Period (FY) |
2011 – 2013
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| Keywords | Wind turbine / Wind turbine tower / Floating wind turbine / Dynamic Absorber / Liquid damper / Gyroscope / Mode localization |
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| Research Abstract |
Vibrations of towers and blades of wind turbines were investigated and various methods were attempted to suppress them. From vibration analysis, the following two phenomena were clarified analytically. (1)Unstable vibrations of a wind turbine with a two-blade rotor which has an asymmetry of moment of inertia, and (2)Resonance phenomena and a mode localization of wind turbines.
Concerning vibration suppression, the following three methods were attempted. (1)Vibration suppression of a wind turbine tower using a cylindrical tuned liquid damper, (2) Vibration control of floating structures utilizing gyroscopes.
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