Meddaikar, Muhammad Y. und Irisarri, Francois-Xavier und Abdalla, M.M. (2015) Blended Composite Optimization combining Stacking Sequence Tables and a Modified Shepard’s Method. 11th World Conference on Structural and Multidisciplinary Optimization, 2015-06-07 - 2015-06-12, Sydney, Australia.
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Kurzfassung
This article presents a computationally-efficient optimization tool for stacking sequence design of blended composite structures. In this tool, blended laminates are designed using stacking sequence tables (SST), coupled with a suitable genetic algorithm (GA). The SST approach guarantees complete-blending, ensuring manufacturability of the optimized design. The concept of successive structural approximations is implemented to improve computational efficiency. Optimizations are carried out on the approximations of responses rather than actual responses themselves, thus reducing the number of expensive design analyses. A recently-proposed modified Shepard's interpolation enriches the quality of the approximations used, by constructing multi-point approximations using the elite designs of the previous iterations. The generality and efficiency of the algorithm is further improved by directly approximating panel loads, thus enabling implementation of a wide range of stress-based design criteria. An analytical multi-panel blended composite problem is presented as an application. The results show that completely blended and feasible stacking sequence designs can be obtained, having its structural performance close to the theoretical continuous optimum itself.
elib-URL des Eintrags: | https://elib.dlr.de/101187/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Blended Composite Optimization combining Stacking Sequence Tables and a Modified Shepard’s Method | ||||||||||||||||
Autoren: |
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Datum: | Juni 2015 | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | stacking sequence optimization, blended composites, structural approximations | ||||||||||||||||
Veranstaltungstitel: | 11th World Conference on Structural and Multidisciplinary Optimization | ||||||||||||||||
Veranstaltungsort: | Sydney, Australia | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 7 Juni 2015 | ||||||||||||||||
Veranstaltungsende: | 12 Juni 2015 | ||||||||||||||||
Veranstalter : | International Society for Structural and Multidisciplinary Optimization | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||
HGF - Programmthema: | Flugzeuge | ||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Strukturen und Werkstoffe (alt) | ||||||||||||||||
Standort: | Göttingen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Aeroelastik | ||||||||||||||||
Hinterlegt von: | Meddaikar, Muhammad Yasser | ||||||||||||||||
Hinterlegt am: | 22 Dez 2015 15:06 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:06 |
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