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Patent

Wind turbine blade

Paul Rudling
TLDR
In this article, a wind turbine blade is made up of a number of modules connected to one another primarily via overlapping shear webs, and each beam has a longitudinal web and a flange at either longitudinal edge.
Abstract
A spar ( 30 ) for a wind turbine blade. The spar comprises a plurality (typically three or more) beams ( 33 ) arranged side-by-side. Each beam has a longitudinal web ( 32 ), a flange ( 31 ) at either longitudinal edge. The spar may be made up of a number of modules connected to one another primarily via overlapping shear webs.

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Citations
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Patent

Efficient wind turbine blades, wind turbine blade structures, and associated systems and methods of manufacture, assembly and use

TL;DR: In this paper, the authors describe a wind turbine blade having an inner region that has an internal load-bearing truss structure, and an outer region having an internal, non-truss, loadbearing structure, which can include a triangular arrangement of spars and/or truss attachment members that connect components of the truss without the use of holes in the spars.
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Wind turbine rotor blade components and methods of making same

TL;DR: In this paper, structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating loadbearing support structures and reinforcements of wind turbine blades.
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TL;DR: In this paper, the authors describe a composite composite comprising a layer of UV-resistant thermoplastic material and an epoxy-resin covering the cured resin over at least part of the length of the distal half of the turbine blade, and is bonded to said turbine blade.
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Wind turbine blade

TL;DR: A wind-turbine blade that prevents foreign matter from entering the inside thereof during transportation and that can be efficiently assembled in good condition is provided in this paper, which includes a skin that forms a long and hollow shape, and a main spar that extends in the longitudinal direction and reinforces the skin from inside thereof.
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Wind Turbine Blade

TL;DR: In this paper, a sectional blade for a wind turbine comprising a first and a second blade sections extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade is presented.
References
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Patent

Composite wind turbine rotor blade and method for making same

TL;DR: A wind turbine rotor blade including NASA LS (1) - 04xx airfoil sections having a twist not greater than 8° and a construction for such a blade which includes no parting line along the leading edge is described in this paper.
Patent

Wind turbine blades made of two separate sections, and method of assembly

TL;DR: In this article, the authors describe a wind turbine blade consisting of at least two wind turbine sections that include one or more strengthening structures (6, 6a, 6b), the ends of which are connected in a connection joint.
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Plastic-composite profiled girder, in particular a wing spar for aircraft and for wind-turbine rotors

TL;DR: In this paper, the wing spar of an aircraft is constructed by pultruding two flanges, one of which is made of resin impregnated rovings and the other made of yarn or non-woven fabrics.
Patent

Erosion resistant surface protection

TL;DR: In this paper, a coating for protection of airfoil surfaces from erosion caused by the impingement of particles in the incoming air stream of a gas turbine engine or on helicopter blades is described.
Patent

Method and coating for protecting and repairing an airfoil surface

Shek C. Hong
TL;DR: In this article, a hand sandable elastomeric coatings on a curved substrate, particularly such surfaces as the leading edge of the airfoil, is described for the repair and removal of erosion or impact damage.