Abstract
This project takes XX unit as the analysis object to study the first-order vibration wind speed of wind turbine under shutdown vibration. The vortex-induced vibration response is calculated and the displacement under resonant wind speed is calculated by fluid-solid coupling method. The above analysis techniques and methods are forward-looking and advanced in vibration characteristics of domestic wind turbines. On the basis of fluid dynamics analysis, the suppression measures are studied emphatically. Through the optimization and comparison of different inhibition schemes, the effect of inhibition measures was quantitatively analyzed. The analysis shows that the vibration characteristics of wind turbine with high flexible tower has its own particularity. The first order vibration probability and vibration displacement can be effectively reduced by pneumatic method and external measures.
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