Tag: resonance
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Dancing in the wind
I have discussed in other post the phenomenal growth of the dimensions of wind turbines in the last 2 decades. Bigger rotors, taller towers and more MW has been the industry trend year after year. There is some evidence that we are reaching the limit – blades of more than 50m length pose significant logistic challenges, while…
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Good vibrations: wind induced resonance and turbines oscillations
Have you ever wondered why sometimes the wind turbines (and other similar tall structure) sometime vibrate? Under some conditions the wind blowing on the tower create vortices. These vortices appears regularly on both sides of the tower, creating low pressure zones first on one side and then in the other. For these reason the tower…