Wind turbine rotor blade assembly having reinforcement assembly

Patent metadata

Field	Value
Publication number	US-9719489-B2
Application number	US-201313899654-A
Country	US
Kind code	B2
Filing date	May 22, 2013
Priority date	May 22, 2013
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

Rotor blade assembly and methods for forming rotor blade assemblies are provided. A rotor blade assembly includes a rotor blade including a shell and defining a pressure side, a suction side, a leading edge and a trailing edge each extending between a tip and a root. The rotor blade further defines a span and a chord. The shell includes an inner skin, an outer skin, and a core disposed between the inner skin and the outer skin. The rotor blade assembly further includes a reinforcement assembly bonded to the shell, the reinforcement assembly comprising a reinforcement core.

First claim

What is claimed is:

1. A method for forming a rotor blade assembly, comprising:
forming a rotor blade comprising a shell and defining a pressure side, a suction side, a leading edge and a trailing edge each extending between a tip and a root, the rotor blade further defining a span and a chord, the shell comprising an inner skin, an outer skin, and a core disposed between the inner skin and the outer skin; and
retrofitting a reinforcement assembly to the rotor blade, the reinforcement assembly comprising a reinforcement skin and a reinforcement core, wherein the reinforcement core is disposed between the reinforcement skin and one of the inner skin or the outer skin.

2. The method of claim 1 , wherein the reinforcement core is disposed between the reinforcement skin and the inner skin.

3. The method of claim 1 , further comprising bonding the reinforcement assembly to the shell on the suction side.

4. The method of claim 1 , wherein the rotor blade further comprises a plurality of spar caps and a trailing edge bonding cap.

5. The method of claim 4 , further comprising bonding the reinforcement assembly to a portion of the shell between the trailing edge bonding cap and one of the plurality of spar caps.

6. The method of claim 4 , wherein, in a chord-wise cross-section, an aspect ratio of the reinforcement core is different from an aspect ratio of the core within the portion of the shell between the trailing edge bonding cap and one of the plurality of spar caps.

7. The method of claim 1 , wherein the reinforcement assembly is disposed between the root and approximately 70% of the span from the root.

8. The method of claim 1 , wherein the inner skin and the outer skin are formed from one of a glass fiber reinforced plastic, a carbon fiber, or a metal.

9. The method of claim 1 , wherein the core and the reinforcement core are formed from one of a foam, a wood, or a metal.

Assignees

• Gen Electric

Inventors

• Stewart Edward Mcbeth

Classifications

• F05B2240/302

  Segmented or sectional blades · CPC title

• F05B2230/80

  Repairing, retrofitting or upgrading methods · CPC title

• Y02E10/721

  Cross-Sectional Technologies · mapped topic

• Y02P70/523

  Cross-Sectional Technologies · mapped topic

• Y10T29/49337

  Composite blade · CPC title