Wind turbine blade with a plurality of shear webs
AssigneeBlade Dynamics Limited
InventorAndrea Avaldi
Life of this patent
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Abstract
The present invention relates to a wind turbine blade (10) comprising a shell body with at least one pressure side shell member (36) and at least one suction side shell member (38), and a plurality of shear webs (70) arranged within the shell body. The plurality of shear webs (70) is successively arranged spanwise within the shell body such that adjacent shear webs overlap along part of their spanwise extent (L), wherein a gap (88) in the chordwise direction is provided between adjacent shear webs (70).
Claims14
A wind turbine blade (10) having a profiled contour including a pressure side and a suction side, and a leading edge and a trailing edge with a chord having a chord length extending therebetween, the wind turbine blade extending in a spanwise direction between a root end (80) and a tip end (82),
- wherein the blade comprises a shell body with at least one pressure side shell member (36) and at least one suction side shell member (38), and a plurality of shear webs (70) arranged within the shell body, each shear web comprising an end surface facing the tip end (82) and an opposing end surface facing the root end (80) of the blade,
- wherein each shear web (70) comprises a recess (72) in the end surface facing the tip end (82) and/or a recess (72) in the opposing end surface facing the root end (80) of the blade,
- the plurality of shear webs (70) being successively arranged spanwise within the shell body,
- wherein a gap (88) in the chordwise direction is provided between adjacent shear webs (70),
- wherein the plurality of shear webs (70) is grouped into a leading edge shear web line-up (70e-h) and a trailing edge shear web line-up (70a-d), the trailing edge shear web line-up being closer to the trailing edge than the leading edge shear web line-up, wherein a chordwise distance between the leading edge shear web line-up (70e-h) and the trailing edge shear web line-up (70a-d) is at least 1 meter, and wherein the wind turbine blade comprises 4-10 of the shear webs (70) per each of the leading edge shear web line-up (70e-h) or the trailing edge shear web line-up (70a-d), and
- wherein in each of the leading edge shear web line-up and the trailing edge shear web line-up, a group of the shear webs (70) is successively arranged spanwise within the shell body such that adjacent ones of the shear webs overlap along part of their spanwise extent (L), the overlap including one recess facing the tip end, formed in one of the adjacent shear webs, and one recess facing the root end, formed in the other one of the adjacent shear webs.
Dependencies are inferred from the claim text.