Re:Why Wind Turbines Have Three Blades
by tzs on Friday May 06, 2016 @12:07PM
(#11644871)
For a two blade system, could that vibration problem be addressed by extending the support up beyond the nacelle, so that both blades cross slower wind spots at the same time?
[ Parent
| on HN ]
No. That changes whether the turbine is pitching up and down on top of the post, but doesn't change the fact that the turbine shaft is pulled out (or pushed into) the turbine with different force at the crossover point. That will create vibration even more in the long-post model you describe.