Wind turbine rotor blade

摘要

A wind turbine blade is described, which extends in a spanwise direction from a root end to a tip end and defines an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the spanwise direction. The blade has a camber in the chordwise direction and includes a blade body and a moveable flap. The flap is moveable relative to the blade body to vary the camber of the blade. A deformable panel is located between the blade body and the moveable flap. The panel has an undulating profile comprising an alternating succession of ridges and troughs, which each extend in a first direction. The panel is formed of a material having anisotropic intrinsic stiffness with maximum anisotropic intrinsic stiffness being transverse to the first direction. In a preferred embodiment, the deformable panel is corrugated.

主权项

1. A wind turbine blade extending in a spanwise direction from a root end to a tip end and defining an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the spanwise direction, the blade having a camber in the chordwise direction and comprising:
a blade body; a flap moveable relative to the blade body for varying the camber of the blade; and a deformable panel between the blade body and the moveable flap, the panel having an undulating profile comprising an alternating succession of ridges and troughs, the ridges and troughs each extending in a first direction, wherein the panel is formed of a material having anisotropic intrinsic stiffness with maximum anisotropic intrinsic stiffness being transverse to the first direction.