Method for testing a rotor blade component of a rotor blade for a wind power installation, and rotor blade component

Patent metadata

Field	Value
Publication number	US-11725631-B2
Application number	US-202117480540-A
Country	US
Kind code	B2
Filing date	Sep 21, 2021
Priority date	Sep 21, 2020
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A method for testing a rotor blade component of a rotor blade for a wind power installation, comprising: dividing a rotor blade component of a rotor blade for a wind power installation into two, three or more rotor blade component segments, forming cutouts in a connection interface at a connection end of one of the rotor blade component segments. A rotor blade component segment of a rotor blade for a wind power installation, the rotor blade component segment comprising a connection end which has been formed by dividing a rotor blade component of a rotor blade for a wind power installation into two, three or more rotor blade component segments, a connection interface at the connection end of the rotor blade component segment, and cutouts which are formed in the connection interface and serve for connection of the rotor blade component segment to a test stand.

First claim

The invention claimed is:

1. A method for testing a rotor blade component of a rotor blade for a wind power installation, the method comprising:
dividing a rotor blade component of the rotor blade into a plurality of rotor blade component segments, and
forming a plurality of cutouts in a connection interface at a connection end of a first rotor blade component segment of the plurality of rotor blade component segments,
wherein:
the connection interface has a thickness corresponding to at least 1.5 times a diameter of one or more of the plurality of cutouts, and/or
the connection interface has a thickness of at least 2 cm, and/or
the connection interface has a depth which corresponds to at least 2 times a diameter of one or more of the plurality of the cutouts, and/or
the connection interface has a depth of at least 10 cm.

2. The method according to claim 1 , wherein the rotor blade component is a trailing edge of the rotor blade or an end edge of the rotor blade.

3. The method according to claim 1 , further comprising:
applying the connection interface to the connection end, and/or
producing the rotor blade component of a rotor blade for a wind power installation, and/or
arranging a plurality of connecting elements and/or a plurality of tension elements in some or all of the plurality of cutouts.

4. The method according to claim 3 , comprising:
applying the connection interface comprises laminating on a connection material of the connection interface, and/or
aligning a first end of the connection interface with the connection end of the rotor blade component segment, and/or
wherein a second end of the connection interface is spaced apart from an end of the rotor blade component segment, the rotor blade component segment being opposite the connection end of the rotor blade component segment, and/or
wherein the first and second ends of the connection interface are parallel to one another.

5. The method according to claim 1 , further comprising:
transporting the rotor blade component segment to a test stand,
connecting the rotor blade component segment to the test stand,
testing the rotor blade component segment at the test stand,
dismounting the rotor blade component segment from the test stand, and
disposing of the rotor blade component segment.

6. The method according to claim 1 , wherein:
at least some of the plurality of cutouts have identical shapes, and/or
at least some of the plurality of cutouts are configured for receiving a plurality of connecting elements, respectively, and/or a plurality of tension elements, respectively, for connecting the rotor blade component segment to a test stand, and/or
a respective peripheral surface of at least some of the plurality of the cutouts is formed by a connection material, and/or
at least some of the plurality of cutouts are blind holes, and/or
at least some of the plurality of cutouts are through passage holes, and/or
a respective peripheral surface of at least some of the plurality of cutouts has an inner thread, and/or
at least some of the plurality of cutouts are bores, and/or
at least some of the plurality of cutouts are spaced apart equidistantly from one another.

7. The method according to claim 1 , wherein:
the connection material comprises at least one of a fiber-reinforced composite material, a fiber-plastic composite material, or a glass fiber-reinforced epoxy resin composite material, and/or
the connection material is identical to a material of the rotor blade component and/or is reinforced with a material of the rotor blade component, and/or
the connection interface is arranged on at least one of an inner side or an outer side of the connection end of the rotor blade component segment, and/or
the connection interface extends over at least a portion of the inner periphery and/or outer periphery of the connection end of the rotor blade component segment.

8. The method according to claim 1 , comprising:
transporting at least one rotor blade component segment of the plurality of rotor blade component segments of a same rotor blade component to a test stand,
connecting the at least one rotor blade component segment of the plurality of rotor blade component segments of the same rotor blade component to the test stand, and
testing the at least one rotor blade component segment of the plurality of rotor blade component segments of the same rotor blade component at the test stand.

9. The method according to claim 1 , further comprising disposing of a second rotor blade component segment of the plurality of rotor blade component segments of the same rotor blade component.

10. The method according to claim 1 , comprising arranging spacers on a face surface of the connection interface in a region of openings of the plurality of cutouts.

11. The method according to claim 10 , wherein:
the spacers have mutually different thicknesses, and/or
the spacers have individually matched thicknesses such that the spacers are configured to compensate for unevennesses, and/or
the spacers have different thicknesses, wherein the thicknesses are selected in such a way that face sides of the spacers are connectable to a steel adaptor lie in a common plane.

12. The method according to claim 1 , comprising providing a filler compound on a surface of the connection interface in a region of the plurality of cutouts.

13. The method according to claim 12 , wherein the filler compound has, at different positions, mutually different thicknesses, wherein the different thicknesses are selected in such a way that the filler compound forms a plane on that side on which the filler compound is connectable to a steel adaptor.

14. The method according to claim 1 , arranging spacers on planar surfaces on a face surface of the connection interface, and applying filler compound on the planar surfaces of the face surface of the connection interface.

15. The method according to claim 1 , comprising producing planar surfaces on a face surface of the connection interface in a region of openings of the plurality of cutouts.

16. The method according to claim 15 , wherein producing comprising at least one of drilling or milling.

17. The method according to claim 15 , wherein the planar surfaces lie on two or more different planes, and/or wherein distances of the planar surfaces from a common reference plane are determined and thicknesses of the spacers and/or filler compound are adjusted to the distances.

18. A rotor blade component segment of a rotor blade for a wind power installation, the rotor blade component segment comprising:
a connection end of a rotor blade component segment separated from a rotor blade component of a rotor blade for a wind power installation,
a connection interface at the connection end of the rotor blade component segment, and
a plurality of cutouts at the connection interface, wherein the plurality of cutouts are configured for connection of the rotor blade component segment to a test stand,
wherein:
the connection interface has a thickness corresponding to at least 1.5 times a diameter of one or more of the plurality of cutouts, and/or
the connection interface has a thickness of at least 2 cm, and/or
the connection interface has a depth which corresponds to at least 2 times a diameter of one or more of the plurality of the cutouts, and/or
the connection interface has a depth of at least 10 cm.

19. The rotor blade component segment according to claim 18 , wherein spacers are arranged on a face surface of the connection interface in a

Assignees

• Wobben Properties Gmbh

Inventors

• Bürkner Falko
• Schwabe Anna

Classifications

• F03D13/30 Primary

  Commissioning, e.g. inspection, testing or final adjustment before releasing for production · CPC title

• F03D1/0675

  of the blades · CPC title

• G01M5/0025

  of elongated objects, e.g. pipes, masts, towers or railways (G01M5/0058 takes precedence) · CPC title

• G01M5/0075

  by means of external apparatus, e.g. test benches or portable test systems (G01M5/005 takes precedence) · CPC title

• F05B2230/10

  by removing material · CPC title