Weight optimized pressurizable aircraft fuselage structures...

Details Weight optimized pressurizable aircraft fuselage structures... Weight optimized pressurizable aircraft fuselage structures...

2005-11-15

2009-11-24

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

C244S11700R

Reexamination Certificate

active

07621482

ABSTRACT:
An aircraft fuselage includes a tubular shell having a centerline axis, opposite ends, and a cross-section having a radius R(φ), where φ is the angular coordinate of a cylindrical coordinate system, a curvature Curv(φ), where Curv(φ) is the inverse of a local radius of curvature of a surface of the shell, and a circumferential shape that varies radially by no more than ±7% from that of an elliptical cross-section at substantially every station along the centerline axis between the nose and tail ends thereof. The weight of the shell is minimized by “tailoring,” i.e., optimizing, at least one structural attribute, expressed as a function of φ, associated with every element of the shell, such that the weight of the shell required to react a design load incident thereon is less than that required to react the same design load, but wherein the same structural attribute has not been so tailored.

REFERENCES:
patent: 2147552 (1939-02-01), Saives
patent: 2314949 (1943-03-01), Palmer
patent: 2412778 (1946-12-01), Kosek
patent: 3854679 (1974-12-01), Smethers, Jr.
patent: 4715560 (1987-12-01), Loyek
patent: 5042751 (1991-08-01), Kolom
patent: 6834833 (2004-12-01), Sankrithi

Affiliated with

Also associated with

Rating

Weight optimized pressurizable aircraft fuselage structures... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Weight optimized pressurizable aircraft fuselage structures..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weight optimized pressurizable aircraft fuselage structures... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4141860