风力涡轮机叶片翼梁帽
By designing a tapered end section of the intermediate pultruded layer sandwiched between the pultruded layers of the sub-laminated layers in the spar cap of the wind turbine blade, the problem of load asymmetry in the tapered section is solved, achieving uniform load distribution and avoiding stress concentration, thereby improving the stiffness and service life of the structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- VESTAS WIND SYSTEMS AS
- Filing Date
- 2024-12-17
- Publication Date
- 2026-07-17
AI Technical Summary
The existing wind turbine blade spars caps bear asymmetrical high loads at the interface between the pultruded end of the tapered section and the adjacent pultruded section that extends further, resulting in load imbalance and stress concentration.
A wing cap structure is designed in which the tapered end section of the middle pultruded layer is sandwiched between multiple pultruded layers of the first and second sub-laminated layers. Through the non-uniform configuration of the tapered end section and the layup of the sandwiched pultruded layers, the load is evenly distributed and stress concentration is avoided.
This design achieves uniform load distribution at the tapered end of the wing spars, avoiding stress concentration, improving the symmetry and stiffness uniformity of the structure, and enhancing the service life and load-bearing capacity of the blades.
Smart Images
Figure CN122422653A_ABST