A rotor assembly for a rotary wing aircraft includes a rotor hub having a central axis. The rotor hub is rotatable about the central axis. A plurality of flexible structural members extend radially outwardly from the rotor hub. Each flexible structural member is substantially U-shaped having a first arm extending from the hub, a second arm extending from the hub, and an end portion connecting the first arm to the second arm at a radially outboard end of the flexible structural member. The first arm, the second arm and/or the end portion have a cross section with a height along the central axis greater than a thickness of the cross section to increase stiffness of the rotor assembly along the central axis. The rotor assembly further includes a plurality of rotor blades, each rotor blade being secured to each flexible structural member of the plurality of flexible structural members.
FLEX BEAM FOR ROTOR ASSEMBLY
FLEXIBLER TRÄGER FÜR ROTORANORDNUNG
PLAQUE DE FLEXION POUR ENSEMBLE ROTOR
2020-03-11
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |