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Modelling and Experiments of Additively-Manufactured Fluid Actuated Morphing Unit Structures

Vasista, Srinivas and Büchner, Kathrin and Titze, Maik and Riemenschneider, Johannes and Monner, Hans Peter and Seitz, Vera (2021) Modelling and Experiments of Additively-Manufactured Fluid Actuated Morphing Unit Structures. In: 17th International Conference and Exhibition on New Actuator Systems and Applications, ACTUATOR 2021, 98. VDE-Verlag. ACTUATOR2021, 17-19 February 2021, Online. ISBN 978-3-8007-5456-4. ISSN 1432-3419.

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Official URL: https://www.actuator.de/en/actuator-2021

Abstract

Fluid actuated morphing unit structures (FAMoUS) enable shape adaptability when implemented in larger sys-tems or vehicles, such as aircraft wings, in order to improve overall performance such as increased efficiency. FAMoUS units are composed of reinforced elastomeric chambers that tend to elongate when pressurized by air or liquid whilst preserving a relatively smooth outer surface, thereby combining the skin, substructure and actuation components into a tightly integrated compact package. A number of research challenges need to be first over-come and this paper presents numerical and experimental results of single FAMoUS units that have been pro-duced with additive manufacturing methods. With the specific composition of elastomeric and stiffening materi-als, the units exhibit actuator behaviour by generating force and stroke which can be used for carrying loads and changing shape. Approximating equations for force generation show that dependencies on pressure, material stiffness and incompressibility and geometry exist. Methods for fabrication include additive manufacturing though the associated material properties need to allow for sufficient strength for adequate force generation and stiffness. Specimens printed with real silicone elastomers and ongoing tests are hypothesized to show substantial-ly higher strength, working pressures and force than those with PolyJet® rapid prototyping materials.

Item URL in elib:https://elib.dlr.de/145373/
Document Type:Conference or Workshop Item (Speech)
Title:Modelling and Experiments of Additively-Manufactured Fluid Actuated Morphing Unit Structures
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Vasista, SrinivasInstitut für Faserverbundleichtbau und Adaptronik - Adaptronikhttps://orcid.org/0000-0002-7917-6740
Büchner, KathrinInstitut für Faserverbundleichtbau und AdaptronikUNSPECIFIED
Titze, MaikMaik.Titze (at) dlr.dehttps://orcid.org/0000-0001-5223-1538
Riemenschneider, JohannesInstitut für Faserverbundleichtbau und Adaptronik - Adaptronikhttps://orcid.org/0000-0001-5485-8326
Monner, Hans PeterInstitut für Faserverbundleichtbau und Adaptronik - Adaptronikhttps://orcid.org/0000-0002-5897-2422
Seitz, Veravera.seitz (at) aceo3D.comUNSPECIFIED
Date:2021
Journal or Publication Title:17th International Conference and Exhibition on New Actuator Systems and Applications, ACTUATOR 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:98
Publisher:VDE-Verlag
Series Name:GMM-Fachberichte
ISSN:1432-3419
ISBN:978-3-8007-5456-4
Status:Published
Keywords:morphing wing, compact actuation
Event Title:ACTUATOR2021
Event Location:Online
Event Type:international Conference
Event Dates:17-19 February 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Vasista, Srinivas
Deposited On:15 Nov 2021 22:06
Last Modified:17 Nov 2021 15:24

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