IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0683960
(2012-11-21)
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등록번호 |
US-9500179
(2016-11-22)
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발명자
/ 주소 |
- Arendt, Cory P.
- Baker, Myles L.
- Wright, Rick Thomas
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
73 |
초록
▼
Segmented wind turbine blades with truss connection regions, and associated systems and methods are disclosed. A wind turbine system in accordance with a particular embodiment includes a wind turbine with a first segment having a first position along the longitudinal axis and having a first internal
Segmented wind turbine blades with truss connection regions, and associated systems and methods are disclosed. A wind turbine system in accordance with a particular embodiment includes a wind turbine with a first segment having a first position along the longitudinal axis and having a first internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the first segment. The blade further includes a second segment having a second position along the longitudinal axis and having a second internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the first segment. A connection region between the first and second segments includes an internal load-bearing truss structure connected between the first internal load-bearing structure and the second internal load-bearing structure.
대표청구항
▼
1. A wind turbine system, comprising: a wind turbine blade elongated along a longitudinal axis, the wind turbine blade including: a first segment having a first position along the longitudinal axis and having a first internal load-bearing structure for which non-truss structure elements carry at lea
1. A wind turbine system, comprising: a wind turbine blade elongated along a longitudinal axis, the wind turbine blade including: a first segment having a first position along the longitudinal axis and having a first internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the first segment;a second segment having a second position along the longitudinal axis and having a second internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the second segment; anda connection region between the first and second segments, the connection region including an internal load-bearing truss structure connected between the first internal load-bearing structure and the second internal load-bearing structure. 2. The system of claim 1 wherein the first internal load-bearing structure does not include a load-bearing truss structure and wherein the second internal load-bearing structure does not include a load-bearing truss structure. 3. The system of claim 1 wherein the first internal load bearing structure includes: a plurality of ribs positioned at spaced-apart locations along the longitudinal axis, with individual ribs extending transverse to the longitudinal axis; anda shear web extending along the longitudinal axis and connected to the ribs. 4. The system of claim 1 wherein the first segment includes a first spar portion extending along the longitudinal axis, the second segment includes a second spar portion extending along the longitudinal axis, and wherein the first and second spar portions are joined directly to each other at the connection region. 5. The system of claim 4 wherein the first and second spar portions are joined with a finger joint that includes projections from the first spar portion received in recesses of the second spar portion. 6. The system of claim 1 wherein the truss structure includes at least one rib and a plurality of truss members connected between the at least one rib and the first and second segments, and wherein the truss members have a C-shaped cross-section. 7. The system of claim 1 wherein at least one of the first and second segments includes a plurality of longitudinally extending spars and a plurality of longitudinally spaced-apart ribs, with individual ribs attached to the longitudinally extending spars, and wherein the truss structure includes: a plurality of truss attachment members, with individual truss attachment members connected to a spar, a rib, or both a spar and rib without the use of a hole in the respective spar, the rib or both the spar and the rib, wherein an individual truss attachment member includes at least three assemblable elements in surface-to-surface contact with the spar; anda plurality of truss members, with individual truss members connected between corresponding pairs of truss attachment members. 8. The system of claim 1 wherein each of the first internal load bearing structure includes a first longitudinally extending shear web, the second internal load bearing structure includes a second longitudinally extending shear web, and wherein the first and second longitudinally extending shear webs are discontinuous relative to each other at the connection region. 9. The system of claim 8 wherein the first and second shear webs are discontinuous relative to each along the longitudinal axis, and are generally aligned with each other in a thickness direction transverse to the longitudinal axis and in a chordwise direction transverse to the longitudinal axis. 10. The system of claim 8, further comprising a third longitudinally extending shear web positioned between the first and second longitudinally extending shear webs, and being discontinuous with the first and second longitudinally extending shear webs. 11. A wind turbine system, comprising: a wind turbine blade elongated along a longitudinal axis, the wind turbine blade including: a first segment having a first position along the longitudinal axis and having a first internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the first segment, the first segment including a first longitudinally extending shear web, a plurality of first longitudinally extending spars and a plurality of first longitudinally spaced-apart ribs, with individual first ribs attached to individual first spars;a second segment having a second position along the longitudinal axis and having a second internal load-bearing structure for which non-truss structure elements carry at least 90% of the shear loads in the second segment, the second segment including a second longitudinally extending shear web, a plurality of second longitudinally extending spars and a plurality of second longitudinally spaced-apart ribs, with individual second ribs attached to individual second spars; anda connection region between the first and second segments, the connection region including an internal load-bearing truss structure connected between the first internal load-bearing structure and the second internal load-bearing structure, the connection region including: a plurality of truss attachment members, with individual truss attachment members connected to a spar, a rib, or both a spar and rib without the use of a hole in the respective spar, the rib or both the spar and the rib, wherein an individual truss attachment member includes at least three assemblable elements in surface-to-surface contact with the spar; anda plurality of truss members, with individual truss members connected between corresponding pairs of truss attachment members. 12. The system of claim 11 wherein the first and second shear webs are discontinuous relative to each along the longitudinal axis, and are generally aligned with each other in a thickness direction transverse to the longitudinal axis and in a chordwise direction transverse to the longitudinal axis. 13. The system of claim 11, further comprising a third longitudinally extending shear web positioned between the first and second longitudinally extending shear web, and being discontinuous with the first and second extending shear webs. 14. A wind turbine system, comprising: a wind turbine blade including: a plurality of longitudinally extending spars;a plurality of longitudinally spaced-apart ribs, with individual ribs attached to the longitudinally extending spars;a plurality of truss attachment members, with individual truss attachment members connected to a spar, a rib, or both a spar and rib without the use of a hole in the respective spar, the rib or both the spar and the rib, wherein an individual truss attachment member includes at least three assemblable elements in surface-to-surface contact with the spar; anda plurality of truss members, with individual truss members connected between corresponding pairs of truss attachment members. 15. The system of claim 14 wherein an individual truss attachment member includes a first element extending circumferentially around a first portion of the spar and in surface-to-surface contact with the first portion of the spar, a second element extending circumferentially around a second portion of the spar and in surface-to-surface contact with the second portion of the spar, a third element extending circumferentially around a third portion of the spar and in surface-to-surface contact with the third portion of the spar, the first, second and third elements connected to each other around the spar. 16. The system of claim 15, further comprising a fourth element positioned around and at least partially enclosing at least two of the first, second and third elements. 17. The system of claim 14 wherein an individual truss attachment member is formed from a metal and the spar is formed from a composite material. 18. The system of claim 14 wherein the spar and the truss attachment member are adhesively bonded. 19. The system of claim 14 wherein two of the elements together form a flange, and wherein at least one of the truss members is attached to the flange.
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