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Integrated Process Chain for Aerostructural Wing Optimization and Application to an NLF Forward Swept Composite Wing

Wunderlich, Tobias and Reimer, Lars (2018) Integrated Process Chain for Aerostructural Wing Optimization and Application to an NLF Forward Swept Composite Wing. In: AeroStruct: Enable and Learn How to Integrate Flexibility in Design. AeroStruct: Enable and Learn How to Integrate Flexibility in Design Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), 138. Springer, Cham. pp. 3-33. ISBN 978-3-319-72020-3.

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Abstract

This contribution introduces an integrated process chain for aerostructural wing optimization based on high fidelity simulationmethods. The architecture of this process chain enables two of the most promising future technologies in commercial aircraft design in the context of multidisciplinary design optimization (MDO). These technologies are natural laminar flow (NLF) and aeroelastic tailoring using carbon fiber reinforced plastics (CFRP). With this new approach the application of MDO to an NLF forward swept composite wing will be possible. The main feature of the process chain is the hierarchical decomposition of the optimization problem into two levels. On the highest level the wing planform including twist and airfoil thickness distributions as well as the orthotropy direction of the composite structure will be optimized. The lower optimization level includes the wing box sizing for essential load cases considering the static aeroelastic deformations. Additionally, the airfoil shapes are transferred from a given NLF wing design. The natural laminar flow is considered by prescribing laminar-turbulent transition locations. Results of wing design studies and a wing optimization using the process chain are presented for a forward swept wing aircraft configuration. The wing optimization with 12 design parameters shows a fuel burn reduction in the order of 9% for the design mission.

Item URL in elib:https://elib.dlr.de/119893/
Document Type:Book Section
Title:Integrated Process Chain for Aerostructural Wing Optimization and Application to an NLF Forward Swept Composite Wing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wunderlich, Tobiastobias.wunderlich (at) dlr.dehttps://orcid.org/0000-0001-8829-7600
Reimer, Larslars.reimer (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:AeroStruct: Enable and Learn How to Integrate Flexibility in Design
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:138
DOI :10.1007/978-3-319-72020-3_1
Page Range:pp. 3-33
Editors:
EditorsEmail
Heinrich, RalfRalf.Heinrich@dlr.de
Publisher:Springer, Cham
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM)
ISBN:978-3-319-72020-3
Status:Published
Keywords:multidisciplinary optimization and MDO and wing optimization and transonic aerodynamics and static aeroelasticity and fluid-structure coupling and Reynolds-averaged Navier-Stokes and RANS and finite element method and FEM
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 - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute for Aerodynamics and Flow Technology > CASE, BS
Deposited By: Wunderlich, Dr.-Ing. Tobias
Deposited On:18 Jun 2018 09:19
Last Modified:31 Jul 2019 20:17

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