Modal Analysis on Fluid-Structure Interaction of MW-Level Vertical Axis Wind Turbine Tower

Sensors & Transducers

Zhong Dingqing¹  Wang Qiong¹  Tan Jiqiu¹ 

[1] Department of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China;

关键词: Tower;    Fluid-structure interaction;    Modal analysis;    MW-level wind turbine.;   

DOI  :  

来源: DOAJ

【 摘 要 】

In order to avoid resonance problem of MW-level vertical axis wind turbine induced by wind, a flow field model of the MW-level vertical axis wind turbine is established by using the fluid flow control equations, calculate flow’s velocity and pressure of the MW-level vertical axis wind turbine and load onto tower’s before and after surface, study the Modal analysis of fluid-structure interaction of MW-level vertical axis wind turbine tower. The results show that fluid-structure interaction field of MW- level vertical axis wind turbine tower has little effect on the modal vibration mode, but has a great effect on its natural frequency and the maximum deformation, and the influence will decrease with increasing of modal order; MW-level vertical axis wind turbine tower needs to be raised the stiffness and strength, its structure also needs to be optimized; In the case of satisfy the intensity, the larger the ratio of the tower height and wind turbines diameter, the more soft the MW-level vertical axis wind turbine tower, the lower its frequency.

【 授权许可】

Unknown