Vertical-shaft windmill concept calls for hinged, flapping blades to increase energy-conversion efficiency by reducing wind-energy loss. Hinged Blade Halves unfold to catch wind when moving with it, then fold away from wind when moving against it.
Hinged-Blade, Vertical-Shaft Windmill
NASA Tech Briefs ; 9 , 1
1985-06-01
Miscellaneous
No indication
English
WINDMILL BLADE DEFORMATION MEASUREMENT DEVICE, AND WINDMILL BLADE DEFORMATION EVALUATION SYSTEM
European Patent Office | 2017
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