| 摘要 |
In the present invention a rotor blade main body (37) is equipped with multiple first composite sheet groups (51) and multiple second composite sheet groups (53) provided along the thickness direction (TD). Each first composite sheet group (51) has multiple composite sheets (49) overlapping from the blade thickness center (TC) toward the dorsal surface (39). Each second composite sheet group (53) has the multiple composite sheets (49) overlapping from the blade thickness center (TC) toward the ventral surface (41). The combined direction (CD) of the orientation directions of the reinforcing fibers of the multiple composite sheets (49) in each sheet group (51, 53) is inclined 20-45 degrees toward the rear edge with respect to the span direction (SD). |
