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Titolo:
Simultaneous cost and weight minimization of postbuckled composite panels under combined compression and shear
Autore:
Kassapoglou, C; Dobyns, AL;
Indirizzi:
Sikorsky Aircraft, Struct Res Sect, Stratford, CT 06615 USA Sikorsky Aircraft Stratford CT USA 06615 es Sect, Stratford, CT 06615 USA
Titolo Testata:
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
fascicolo: 5, volume: 21, anno: 2001,
pagine: 372 - 382
SICI:
1615-147X(200107)21:5<372:SCAWMO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Keywords:
cost and weight minimization; post-buckled composite panels; Pareto set; optimization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Kassapoglou, C Sikorsky Aircraft, Struct Res Sect, MS S-352A,6900 Main St,Stratford, CT 06615 USA Sikorsky Aircraft MS S-352A,6900 Main St StratfordCT USA 06615
Citazione:
C. Kassapoglou e A.L. Dobyns, "Simultaneous cost and weight minimization of postbuckled composite panels under combined compression and shear", ST MULT OPT, 21(5), 2001, pp. 372-382

Abstract

An approach is presented to determine designs that simultaneously minimizecost and weight for postbuckled stiffened composite panels. First, a gradient-based optimization method is used to separately determine the minimum cost and weight designs for different stiffener types and spacings. The minimum cost and weight designs are then combined to create the Pareto set of optimum designs. The design that simultaneously minimizes cost and weight isselected from the Pareto set as the point that is closest to the individual minimum cost and weight designs given the relative importance of cost andweight. It was found that, for the assumptions made in this analysis, the overall optimum design corresponds to a panel with angle (L) stiffeners. This was true for both the case where cost and weight are considered of equalimportance, and the case where cost is considered twice as important as the weight.

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Documento generato il 26/09/20 alle ore 11:58:38