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Automated sizing of a composite wing for the usage within a multidisciplinary design process

Bach, Tobias and Führer, Tanja and Willberg, Christian and Dähne, Sascha (2016) Automated sizing of a composite wing for the usage within a multidisciplinary design process. Aircraft Engineering and Aerospace Technology, 2 (88). Emerald Group Publishing Ltd.. doi: 10.1108/AEAT-02-2015-0057. ISSN 1748-8842.

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Official URL: http://www.emeraldgrouppublishing.com/aeat.htm


Purpose The purpose of this paper is to present a Structural Design and Optimization Module for aircraft structures, that can be used stand-alone or in a high-fidelity MDO process. The module is capable of dealing with different design concepts and novel materials properly. The functionality of the module is also demonstrated. Design/methodology/approach For a fast sizing and optimization, linear static Finite Elements Models are used to obtain inner loads of the structural components. The inner loads and the geometry are passed to a software, where a comprehensive set of analytical failure criteria is applied for the design of the structure. In addition to conventional design processes, the objects of stiffened panels like skin and stringer are not optimized separately and discrete layups can be considered for composites. The module is connected to a design environment, where an automated steering of the overall process and the generation of the FE-models is implemented. Findings The exemplary application on a transport aircraft wing shows the functionality of the developed module. Originality/value The weight benefit of not optimizing skin and stringer separately was shown. Furthermore, with the applied approach a fast investigation of different aircraft configurations is possible without constraining too many design variables as it often occurs in other optimization processes. The flexibility of the module allows numerous investigations on influence of design concepts and failure criteria on mass and layout of aircraft wings.

Item URL in elib:https://elib.dlr.de/103354/
Document Type:Article
Title:Automated sizing of a composite wing for the usage within a multidisciplinary design process
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Willberg, ChristianUNSPECIFIEDhttps://orcid.org/0000-0003-2433-9183UNSPECIFIED
Dähne, SaschaUNSPECIFIEDhttps://orcid.org/0000-0003-3497-3225137347190
Journal or Publication Title:Aircraft Engineering and Aerospace Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Emerald Group Publishing Ltd.
Keywords:Structural Optimization, CFRP, composite wings
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)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Bach, Tobias
Deposited On:16 Oct 2016 11:53
Last Modified:20 Nov 2023 14:06

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