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Compliant structures-based wing and wingtip morphing devices

Vasista, Srinivas and de Gaspari, Alessandro and Ricci, Sergio and Riemenschneider, Johannes and Monner, Hans Peter and Kamp van de, Bram (2016) Compliant structures-based wing and wingtip morphing devices. Aircraft Engineering and Aerospace Technology, 88 (2), pp. 311-330. Emerald Group Publishing Ltd.. DOI: 10.1108/AEAT-02-2015-0057 ISSN 1748-8842

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Official URL: http://www.emeraldinsight.com/doi/full/10.1108/AEAT-02-2015-0067

Abstract

Purpose – The purpose of this paper is to provide an overview of the design and experimental work of compliant wing and wingtip morphing devices conducted within the EU FP7 project NOVEMOR and to demonstrate that the optimization tools developed can be used to synthesize compliant morphing devices. Design/methodology/approach – The compliant morphing devices were “designed-through-optimization”, with the optimization algorithms including Simplex optimization for composite compliant skin design, aerodynamic shape optimization able to take into account the structural behaviour of the morphing skin, continuum-based and load path representation topology optimization methods and multi-objective optimization coupled with genetic algorithm for compliant internal substructure design. Low-speed subsonic wind tunnel testing was performed as an effective means of demonstrating proof-of-concept. Findings – It was found that the optimization tools could be successfully implemented in the manufacture and testing stage. Preliminary insight into the performance of the compliant structure has been made during the first wind tunnel tests. Practical implications – The tools in this work further the development of morphing structures, which when implemented in aircraft have potential implications to environmentally friendlier aircrafts. Originality/value – The key innovations in this paper include the development of a composite skin optimization tool for the design of highly 3D morphing wings and its ensuing manufacture process; the development of a continuum-based topology optimization tool for shape control design of compliant mechanisms considering the stiffness and displacement functions; the use of a superelastic material for the compliant mechanism; and wind tunnel validation of morphing wing devices based on compliant structure technology.

Item URL in elib:https://elib.dlr.de/104537/
Document Type:Article
Title:Compliant structures-based wing and wingtip morphing devices
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vasista, SrinivasInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
de Gaspari, AlessandroPolitecnico di MilanoUNSPECIFIED
Ricci, SergioPolitecnico di MilanoUNSPECIFIED
Riemenschneider, JohannesInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Monner, Hans PeterInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Kamp van de, BramDLR-FAUNSPECIFIED
Date:2016
Journal or Publication Title:Aircraft Engineering and Aerospace Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:88
DOI :10.1108/AEAT-02-2015-0057
Page Range:pp. 311-330
Publisher:Emerald Group Publishing Ltd.
ISSN:1748-8842
Status:Published
Keywords:Multi-objective optimization, Compliant mechanisms, Genetic algorithm, Topology optimization, Morphing structures
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 > Adaptronics
Deposited By: Vasista, Srinivas
Deposited On:25 Jul 2016 07:45
Last Modified:06 Sep 2019 15:18

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