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Structural optimization of stiffened composite panels for highly flexible aircraft wings

Bach, Tobias and Hühne, Christian (2017) Structural optimization of stiffened composite panels for highly flexible aircraft wings. WCSMO12, 05.06. - 08.06.2017, Braunschweig, Germany.

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Within this paper, the structural optimization of stiffened composite panels is considered. The application example is a wing of a long–range aircraft, whereby the flexibility has to be increased due to flight physical demands. To develop the new structural design concept, numerical optimization is used. The structural analysis is carried out utilizing detailed finite element models (DFEM) with linear static and linear eigenvalue simulations. Using this DFEM– and gradient–based optimization environment, designs are analyzed and optimized regarding their mass, considering damage tolerance and stability requirements. The advantages of the chosen simulation and optimization approach are presented. The new design concept is used to improve the aircraft wing and the differences to the state of the art wing design are depicted.

Item URL in elib:https://elib.dlr.de/112957/
Document Type:Conference or Workshop Item (Speech)
Title:Structural optimization of stiffened composite panels for highly flexible aircraft wings
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bach, Tobiastobias.bach (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:6 June 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Sizing optimization, composites, stiffened panels, gradient–based optimization, DFEM
Event Title:WCSMO12
Event Location:Braunschweig, Germany
Event Type:international Conference
Event Dates:05.06. - 08.06.2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old), L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Bach, Tobias
Deposited On:15 Jan 2018 12:25
Last Modified:15 Jan 2018 12:25

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