The present invention addresses the problem of providing a rotor having excellent lightweight properties, rigidity, fatigue properties, and dimensional accuracy, and particularly having excellent fatigue properties, i.e., durability, and the subject of the present invention is a rotor comprising at least the following constituent element [A] constituting a skin, which is a surface layer of the rotor, and the following constituent element [B] constituting a core, which is an interior of the skin, the constituent element [B] is enclosed in the constituent element [A] at least in a cross-section at the center of the distance from the central axis during rotation to the tip of the rotor. Constituent element [A] is a continuous fiber base material containing continuous reinforcing fibers and a matrix resin, constituent element [B] is a porous body containing reinforcing fibers and a resin, the mass average fiber length of the reinforcing fibers is 1-15 mm, and voids are formed by bonding the reinforcing fibers via the resin.
本发明以提供轻量性、刚性、疲劳特性、尺寸精度优异、尤其是疲劳特性即耐久性优异的旋翼为课题,其主旨在于,是一种旋翼,至少包含构成旋翼的表层即外皮的下述构成要素[A]及构成所述外皮的内部即芯的下述构成要素[B],至少在从旋转时的中央轴到旋翼的顶端部为止的距离的中央处的横截面中,构成要素[B]内包于构成要素[A]。构成要素[A]:包含连续的增强纤维和基体树脂的连续纤维基材,构成要素[B]:包含增强纤维和树脂的多孔质体,所述增强纤维的质量平均纤维长度为1mm以上且15mm以下,通过将所述增强纤维经由所述树脂结合而形成有空隙。
Rotor wing
旋翼
30.08.2024
Patent
Elektronische Ressource
Chinesisch
TIBKAT | 26.1992,11 - 49.2015,5
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