公开(公告)号：US20200300222A1

公开(公告)日：2020-09-24

申请号：US16089069

申请日：2017-03-09

Applicant: Vestas Wind Systems A/S

Inventor： Kristoffer Isbak Thomsen ,  Anders Haslund Liingaard

IPC: F03D13/20

Abstract: A nacelle of a wind turbine, the nacelle comprising a rear frame structure (1), the rear frame structure (1) comprising a plurality of truss members (2), and a plurality of joints (3), each joint (3) interconnecting ends of at least two truss members (2). Each joint (3) comprises a central portion (6) and at least two connecting portions (7) extending away from the central portion (6), each connecting portion (7) being arranged to form an interface towards a truss member (2), and each connecting portion (7) being significantly more flexible than the central portion (6) and significantly more flexible than the truss members (2). The rear frame structure (1) is capable of improved handling of bending moments due to the increased flexibility of the connecting portions (7).

公开(公告)号：US10563395B2

公开(公告)日：2020-02-18

申请号：US16304449

申请日：2017-03-09

Applicant: Vestas Wind Systems A/S

Inventor： Anders Haslund Liingaard ,  Kristoffer Isbak Thomsen

IPC: E04B1/41 ,  F03D80/80 ,  B66C1/10 ,  F03D13/20 ,  E04C3/08 ,  E04C3/04

Abstract: A detachable reinforcement tool (1) for providing temporary reinforcement of a rear frame structure (6) for a nacelle of a wind turbine is disclosed. The rear frame structure (6) comprises a plurality of truss members (4) and a plurality of joints (5), each joint (5) interconnecting ends of at least two truss members (4). The reinforcement tool (1) comprises a reinforcement part (2), and attaching means (3) for detachably attaching the reinforcement part (2) to two different parts (4, 5) of the rear frame structure (6). The reinforcement tool (1) is arranged to provide a load transferring connection between two parts (4, 5) of the rear frame structure (6) when the reinforcement part (2) is attached to the two parts (4, 5) of the rear frame structure (6) by means of the attaching means (3). The rear frame structure (6) is capable of handling extreme loads without being designed to handle such loads permanently. Manufacturing costs and weight of the rear frame structure (6) are reduced.

公开(公告)号：US20190178232A1

公开(公告)日：2019-06-13

申请号：US16310997

申请日：2017-06-23

Applicant: Vestas Wind Systems A/S

Inventor： Kristoffer Isbak Thomsen ,  Anders Haslund Liingaard ,  Thomas Rugård Poulsen ,  Christian Bovenkamp

IPC: F03D80/80 ,  F03D13/20

Abstract: The invention is a frame for carrying a load in a wind turbine. The frame comprises a first and a second beam extending in a lengthwise direction, a third beam extending in a transverse direction between a first joint on the first beam and a second joint on the second beam. The third beam is configured for carrying the load. The frame further comprises a stress-inducing cross-shaped structure forming four legs joined at an intersection and extending therefrom towards four ends, where two of the four ends are attached on opposite sides of the joint on the first beam and the other two of the four ends are attached on opposite sides of the joint on the second beam. To prevent excessive deflection of the third beam and of the cross-shaped structure, the cross-shaped structure is decoupled from the third beam and therefore allowed to move e.g. without touching the third beam.

公开(公告)号：US20190127969A1

公开(公告)日：2019-05-02

申请号：US16096322

申请日：2017-03-09

Applicant: Vestas Wind Systems A/S

Inventor： Morten Hedegaard Petersen ,  Anders Haslund Liingaard ,  Christian Bovenkamp ,  Kristoffer Isbak Thomsen

IPC: E04B1/41 ,  E04C3/08 ,  F03D13/20

Abstract: A nacelle of a wind turbine, the nacelle comprising a rear frame structure (1) comprising a plurality of truss members (2), and a plurality of pivot joints (3). Each pivot joint (3) interconnects ends of at least two truss members (2), thereby forming a truss structure with the pivot joints (3) arranged in node points of the truss structure. At least some of the pivot joints (3) are adjustable in such a manner that an angle between two truss members (2) being interconnected via a pivot joint (3) is adjustable by means of the pivot joint (3). Nacelles of varying dimensions can be provided using a limited number of basis components in the form of truss members (2) and pivot joints (3). The pivot joints (3) are moment neutral, and therefore bending moments are not introduced into the truss members (2).