Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1985-09-30
1986-12-16
Kittle, John E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428238, 428408, 428431, 428902, 416134A, 416143, 416159, B64C 2752
Patent
active
046296441
ABSTRACT:
A filament wound fiber reinforced resin matrix composite structure. The structure is particularly adapted for use as a torque drive diaphragm in a rotary wing aircraft hub. The structure comprises a substantially flat diaphragm, a rim, rim reinforcement fibers and at least one fiber reinforcement ring. The diaphragm has a central attachment means for receiving a shaft and the rim has an attachment means. An alternative embodiment of the structure is a hollow disc having first and second substantially flat diaphragm sides with a connecting rim, rim reinforcement fibers and at least one fiber reinforcing ring for each diaphragm side. The sides have centrally located attachment means. The structure comprises a resin matrix, fibers wound substantially tangentially to the central attachment means with sufficient tension in a multiple circuit pattern to form the structure, fibers wound with sufficient tension in an essentially circumferential manner to reinforce the rim of the structure and fibers wound substantially circularly to form rings for reinforcing the diaphragm. The structure is cured by molding with sufficient heat and temperature in a controlled cure cycle. The structure does not exhibit "oil-canning" in that the flat diaphragm or diaphragm sides do not displace from the substantially flat uniplanar mode when subjected to varying temperatures. In addition, the structure does not buckle under heavy torque loading. The spring characteristics of the structure when constrained as a torque drive remain approximately linear and buckling and snap-through are eliminated during operation.
REFERENCES:
patent: 4156583 (1979-05-01), Mayerjak
patent: 4168194 (1979-09-01), Stiles
patent: 4257835 (1981-03-01), Bompard
patent: 4305903 (1981-12-01), Krause
patent: 4323332 (1982-04-01), Fradenburgh
patent: 4341840 (1982-07-01), Prewo
patent: 4451528 (1984-05-01), Krause
patent: 4455123 (1984-06-01), Sanders et al.
patent: 4545837 (1985-10-01), Wehnert et al.
patent: 4548678 (1985-10-01), Laflin et al.
Kittle John E.
Olson A. Dean
Ryan Patrick J.
Skula E. Richard
United Technologies Corporation
LandOfFree
Filament wound structure having filament wound reinforcing rings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filament wound structure having filament wound reinforcing rings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filament wound structure having filament wound reinforcing rings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-244761