Abstract: A wind turbine blade includes a pressure side shell member with an internal side spar cap, and a suction side shell member with an internal side spar cap. A box-shaped shear web assembly spans between the spar caps and has a generally hollow interior volume. The shear web assembly includes end walls affixed to a respective spar cap and spaced-apart side walls extending transversely between the end walls. The end walls and side walls define a continuous box-shaped assembly structurally interposed between the spar caps. Methods are also provided for making the box-shaped shear web assembly.

Abstract: A system for stiffening and pre-stressing a generator frame in a wind turbine is provided. The system includes a plurality of stress-inducing members configured for imparting a predetermined amount of stress on the generator frame. Each of the plurality of stress-inducing members has a length, a first end, and a second end and the length of each of said plurality of stress-inducing members is selectively adjustable. A coupling plate is configured for coupling the second ends of at least some of the plurality of stress-inducing members together. A plurality of brackets are coupled to the generator frame and configured to couple the first ends of the plurality of stress-inducing members to the generator frame.

Abstract: A wind turbine rotor blade comprises a rotor blade body, including a root portion, a leading edge, a trailing edge, and at least one spar cap; a plurality of parallel, elongated elements of a pre-cured composite material, which comprise fibers and a resin, and a resin connecting the plurality of elements. Further, a method for producing a rotor blade is provided.

Abstract: A system for stiffening and pre-stressing a generator frame in a wind turbine is provided. The system includes a plurality of stress-inducing members configured for imparting a predetermined amount of stress on the generator frame. Each of the plurality of stress-inducing members has a length, a first end, and a second end and the length of each of said plurality of stress-inducing members is selectively adjustable. A coupling plate is configured for coupling the second ends of at least some of the plurality of stress-inducing members together. A plurality of brackets are coupled to the generator frame and configured to couple the first ends of the plurality of stress-inducing members to the generator frame.