Blended wing-fuselage frame made of fiber reinforced resin composites

摘要: A unitary frame having a central, annular-shaped fuselage section and pair of outwardly opposed wing spars is fabricated from fiber-reinforced, resin matrix composites, constitutes one number similar such frames that are assembled together to form framework an aircraft body. Each spar has the general configuration I-beam incorporating sine wave shear web reinforced along upper lower edges by flanges lengthwise extending, tension/compression chords formed bundles oriented fibers. The circumferentially otherwise spars, inner outer extending spars. root each joined respective side continuing into inserting transition structure, in lightweight honeycomb core sandwiched between facing panels, at juncture section. structure efficiently reacts loads developed due bending spar, geometrically blends vertically corrugations with radially