| 摘要 |
A wind turbine blade comprising a profiled hollow contour, at least one reinforcing beam (15) placed between two shell body parts (13, 14), the beam comprising a first beam flange (16a) and an opposing second beam flange (16b), a beam body (17) connected to the first beam flange (16a) by a first transition area (32a) and connected to the second beam flange (16b) by a second transition area (32b). The beam body comprises a beam core (22). The beam core (22) comprises a first outer core surface (24a) and an opposite second outer core surface (24b). The beam body further comprises a web (50) arranged on the outer core surfaces. The flanges (16a, 16b) and the web (50) are made from a fiber-reinforced polymer. The transition areas (32a, 32b) comprise notch-reducing mean formed of rounded corners of the beam core (22). |
| 主权项 |
1. A wind turbine blade for a rotor of a wind turbine (3) comprising a profiled contour (8) formed by a hollow shell body made of fibre-reinforced resin, wherein the hollow shell body comprises
a first shell body part (13) and a second shell body part (14) being interconnected and at least one prefabricated longitudinally extending beam (15) having an I-shaped cross-section and being formed of fibre-reinforced resin comprising a number of fibre layers, said beam (15) comprising a first beam flange (16a) and a second beam flange (16b) and a beam body (17) extending between the flanges,said beam body (17) comprising a beam core (22) having a first (24a) and a second (24b) mutually interspaced outer lateral faces and a first (52) and a second (53) mutually interspaced end faces, each of the lateral faces being covered by a web (50) of fibre-reinforced polymer, the first end face being covered by fibre-reinforced polymer of the first beam flange (16a) and the second end face being covered by fibre-reinforced polymer of the second beam flange (16b),the beam body (17) being integrally formed with and connected to the first beam flange (16a) by two opposite first transition areas (32a) comprising fibre-reinforced resin and integrally formed with and connected to the second beam flange (16b) by two opposite second transition areas (32b) comprising fibre-reinforced resin,the first beam flange (16a) being connected to an inner surface (18) of the first shell part (13) and the second beam flange (16b) being connected to an inner surface (19) of the second shell part (14),characterized in that the transition areas (32a, 32b) comprise notch-reducing means comprising a rounded or chamfered connection between each of the lateral faces (24a, 24b) and each of the adjacent end faces (52, 53) of the beam core (22). |
