Fiber reinforced/epoxy matrix composite helicopter rotor yoke

Details Fiber reinforced/epoxy matrix composite helicopter rotor yoke Fiber reinforced/epoxy matrix composite helicopter rotor yoke

1983-03-22

1986-04-29

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416230, 416141, B64C 2738

Patent

active

045853932

ABSTRACT:
A composite helicopter hub yoke is described. The yoke is made up of glass fibers unidirectionally oriented in the direction of principle stress, i.e. along the length of the yoke. The yoke also has clevis sections on either end and the clevis sections additionally contain multiaxially oriented multiple plies of unidirectionally oriented continuous graphite fibers interleaved with the unidirectionally oriented continuous glass fibers to produce crack resistance, damage tolerance, and integrity inspectability.

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patent: 4360337 (1982-11-01), Frommlet et al.
patent: 4369019 (1983-01-01), Lovera et al.
patent: 4425082 (1984-01-01), Mussi et al.
patent: 4427340 (1984-01-01), Metzger et al.

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