Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1989-06-02
1991-06-18
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
244120, B64C 110
Patent
active
050243993
ABSTRACT:
In order to reinforce a working hull, such as the fuselage of an aircraft and in particular that of a helicopter, a frame (C) is embodied made of a composite material in the form of a monolithic monobloc structure. This structure is constituted by a profile whose internal flange (16) and the external half-flanges (18) principally comprise unidirectional fibers which extend over its entire length. As a variant, the lower section of the frame is embodied separately in the form of a panel bordered over its entire periphery by lateral half-flanges which also principally comprise unidirectional fibers. After assembling the two sections of the frame, the half-flanges are then opposite each other in the elongation.
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patent: 1880481 (1932-10-01), Ragsdale
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patent: 3976269 (1976-08-01), Gupta
patent: 3995080 (1976-11-01), Cogburn et al.
patent: 3995081 (1976-11-01), Fant et al.
patent: 4367260 (1983-01-01), Krause
patent: 4531695 (1985-07-01), Swinfield
Barquet Henri
Negroni Pierre-Paul
Plissonneau Bernard
Bidwell Anne E.
Peters Jr. Joseph F.
Societe Nationale Industrielle et Aetospatiale
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