| 摘要 |
The invention concerns a method and a device for a rotor blade for joining the rotor blade to a hub, wherein a fastening part (12) on the rotor blade comprises a composite material and is designed so as to enclose a connecting element on the hub. The invention is characterized in that the composite material is a fiber composite comprising a first set of fibers (14) that extends along the fastening part (12) in a direction that lies roughly within a range of +(10°-80°) relative to the longitudinal direction of the fastening part, and a second set of fibers (15) that extends along the fastening part in a direction within said interval, but with the fibers oriented at an angle relative to the longitudinal direction of the fastening part, which angle has the opposite sign vis-a-vis the first set of fibers. The fastening part thereby exhibits transverse contraction in the event of tensile loads on the blade with a component in the longitudinal direction of the fastening part, which imposes a clamping grip on the connecting element. |
