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Structural Optimisation of a Composite Aircraft Frame Applying a Particle Swarm Algorithm

Weiß, Lennart and Köke, Hardy and Hühne, Christian (2015) Structural Optimisation of a Composite Aircraft Frame Applying a Particle Swarm Algorithm. In: Proceedings of the IEEE CEC 2015. IEEE. IEEE Congress on Evolutionary Computation (CEC) 2015, 25.-28. Mai 2015, Sendai, Japan. ISBN 978-1-4799-7491-7

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Abstract

In this paper a heuristic optimisation technique for the maximisation of weight specific elastic deformation energy of CFRP z-frames used in aerospace applications is investigated. Therein, the focus was on the simultaneous consideration of mixed discrete and continuous variables. For that purpose a parametric finite element model was established. In that discrete laminate stacks and continuous geometry parameters were used for structural optimisation. In order to solve the non-linear unconstrained optimisation task, a particle swarm optimiser was selected and applied. Convergence was achieved after a reasonable number of function evaluations. within the solution space, a structural layout of the z-frame was identified being the best solution with respect to the optimisation objective. While the deformation energy appeared to be flange width dependent, the corresponding frame weight showed a strong relation to the applied laminate stacks. The majority of the suggested solutions exhibited similar response with respect to the overall deformation. Prior to structural failure, flexural-torsional buckling was the governing deformation mode.

Item URL in elib:https://elib.dlr.de/96618/
Document Type:Conference or Workshop Item (Speech)
Title:Structural Optimisation of a Composite Aircraft Frame Applying a Particle Swarm Algorithm
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Weiß, Lennartlennart.weiss (at) dlr.deUNSPECIFIED
Köke, Hardyhardy.koeke (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:25 May 2015
Journal or Publication Title:Proceedings of the IEEE CEC 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
Obayashi, ShigeruUNSPECIFIED
Poloni, CarloUNSPECIFIED
Murata, TadahikoUNSPECIFIED
Publisher:IEEE
ISBN:978-1-4799-7491-7
Status:Published
Keywords:Aircraft, Composite, Optimization
Event Title:IEEE Congress on Evolutionary Computation (CEC) 2015
Event Location:Sendai, Japan
Event Type:international Conference
Event Dates:25.-28. Mai 2015
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
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Weiß, Lennart
Deposited On:21 Jul 2015 14:49
Last Modified:23 May 2016 22:54

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