Shell structure of wind turbine blade having regions of low...

Details Shell structure of wind turbine blade having regions of low... Shell structure of wind turbine blade having regions of low...

2009-05-21

2011-12-13

Lebentritt, Michael (Department: 2829)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Hollow

C416S14600A, C416S22300B, C416S226000, C416S232000

Reexamination Certificate

active

08075278

ABSTRACT:
The torsional rigidity of a wind turbine blade affects the twist response of the blade induced by bending moments within the blade. By including regions having a lower modulus of rigidity than the remainder of the blade shell, the torsional rigidity of the blade shell can be decreased, and the twist response thereby increased. In blades having a single shear web, this twist response may be more pronounced. The regions of low modulus may comprise additional shell panels, or thick regions of low modulus joining material.

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