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    • 10. 发明申请
    • ROTOR HUB FOR USE WITH HIGH-INERTIA BLADES
    • 用于高功率叶片的转子座
    • WO2013002784A1
    • 2013-01-03
    • PCT/US2011/042350
    • 2011-06-29
    • BELL HELICOPTER TEXTRON INC.STAMPS, Franks, B.TISDALE, Patrick, R.YUCE, Mithal
    • STAMPS, Franks, B.TISDALE, Patrick, R.YUCE, Mithal
    • B64C27/37
    • B64C27/37B64C27/35
    • A rotor hub has a yoke with radial arms allowing flapping of connected blades about a flap axis. A grip is rigidly attached to each blade, and a lead-lag bearing connects each grip to one of the arms, the bearing defining a lead-lag axis outboard of the flap axis. Each arm has a pair of straps located on opposite sides of the rotor plane for transferring centrifugal force from the blades to the central portion of the yoke. A pair of lead-lag dampers is provided for each grip, the dampers of each pair being located on opposite sides of the rotor plane and connecting an inboard end portion of the grip to the adjacent strap. In-plane motion of a blade causes rotation of the attached grip about the lead-lag axis, causing opposite motion of an inboard end portion of the grip. The dampers act to oppose rotation of the grip.
    • 转子毂具有带有径向臂的轭,允许连接的叶片围绕翼片轴线振动。 握把被刚性地附接到每个叶片,并且牵引延迟轴承将每个手柄连接到其中一个臂,所述轴承限定翼片轴线外侧的前后延伸轴线。 每个臂具有位于转子平面的相对侧上的一对带,用于将离心力从叶片传递到轭的中心部分。 为每个把手提供一对超前滞后阻尼器,每对的阻尼器位于转子平面的相对侧上,并将把手的内侧端部连接到相邻的带子上。 刀片的平面内运动导致附接的把手围绕引线滞后轴线的旋转,引起把手的内侧端部部分的相反运动。 阻尼器用于反对手柄的旋转。