Aeroelastic design of blended composite structures using lamination parameters

Terence Macquart, Noud Werter, Roeland De Breuker

Research output: Contribution to journalArticle (Academic Journal)peer-review

6 Citations (Scopus)
323 Downloads (Pure)

Abstract

The design of composite structures based on fibre angle optimisation rapidly becomes intractable as the number of design variables increases. Lamination parameters can be used instead as intermediate design variables in order to overcome this issue. An extra step is then required in order to convert the optimal design expressed in lamination parameter into feasible blended stacking sequences. However, disparities between the lamination parameter and stacking sequence designs performance are generally observed due to discrepancies
between both design spaces. In this paper, the lamination parameter blending
constraints recently proposed by the authors are applied to the aeroelastic optimisation of the common research wing model in order to diminish these discrepancies and achieve more realistic lamination parameter designs. A comparison between the optimised designs achieved with and without the proposed blending constraints is carried out to evaluate our approach. Results demonstrate that the application of blending constraints greatly increases
the matching quality between lamination parameter and stacking sequence designs, consequently facilitating the retrieval of equivalent blended stacking sequences.
Original languageEnglish
Pages (from-to)561-571
Number of pages11
JournalJournal of Aircraft
Volume54
Issue number2
Early online date5 Aug 2016
DOIs
Publication statusPublished - Mar 2017

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