| 摘要 |
Provided is a wind turbine rotor blade that can secure a sufficient strength in a coupling portion without significant increase in weight even though a blade is increased in size because beams, which are main strength members of the separated blades, are coupled to each other by metallic coupling members. A wind turbine rotor blade including: a skin that forms a long hollow shape; and a beam that is vertically passed in a longitudinal direction to reinforce the skin from inside, wherein the beam is separated into at least two portions in the longitudinal direction, and ends of the adjacent beams are coupled to each other through a metallic coupling member having: a first flange portion opposed to the one end; a second flange portion opposed to the other end; and a connecting portion that connects these first flange portion and second flange portion, and the skin is separated into a coupling portion skin arranged at a position corresponding to the coupling member, and a main body skin arranged at a position corresponding to the beam. |
