| タイトル | Structural optimization for joined-wing synthesis |
| 著者（英） | Kroo, Ilan M.; Gallman, John W. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1992-01-01
1992 |
| 言語 | eng |
| 内容記述 | The differences between fully stressed and minimum-weight joined-wing structures are identified, and these differences are quantified in terms of weight, stress, and direct operating cost. A numerical optimization method and a fully stressed design method are used to design joined-wing structures. Both methods determine the sizes of 204 structural members, satisfying 1020 stress constraints and five buckling constraints. Monotonic splines are shown to be a very effective way of linking spanwise distributions of material to a few design variables. Both linear and nonlinear analyses are employed to formulate the buckling constraints. With a constraint on buckling, the fully stressed design is shown to be very similar to the minimum-weight structure. It is suggested that a fully stressed design method based on nonlinear analysis is adequate for an aircraft optimization study. |
| NASA分類 | AIRCRAFT DESIGN, TESTING AND PERFORMANCE |
| レポートNO | 93A20356
AIAA PAPER 92-4761 |
| 権利 | Copyright |
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