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Pressure-driven Morphing Devices for 3D Shape Changes with Multiple Degrees-of-freedom

Vasista, Srinivas and Riemenschneider, Johannes and Mendrock, Torsten and Monner, Hans Peter (2018) Pressure-driven Morphing Devices for 3D Shape Changes with Multiple Degrees-of-freedom. In: ASME 2018 Conferene on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018, Volume 1. ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2018, San Antonio, Texas, United States. ISBN 978-0-7918-5194-4

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Official URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2715964

Abstract

Early research on a new concept for a morphing system based on unit structures or cells containing pressurized fluid is presented in this article. The motivation stems from the desire to achieve 3D smooth variations with multiple degrees of freedom and variations in surface area. Such a cell is composed of a hybrid between elastomeric material and stiffening material, creating an orthotropic system. When connected in a network of cells, the morphing system is highly integrated in terms of the components of the skin, substructure and actuation means. Numerical predictions of small simple prismatic cells show a force and axial strain capability of above 200 N and 14% respectively for typical elastomeric and stiffening materials at 8 bar pressure. PolyJet additively-manufactured models of wings show how such actuators can be integrated into aircraft structures, including when 3D geometry is highly challenging. These additively-manufactured models were operated at low pressures in the order of 0.5 bar, and a number of open questions on the design, manufacture and operation of such structures are discussed along with intended future work towards higher grade materials and working pressures.

Item URL in elib:https://elib.dlr.de/124348/
Document Type:Conference or Workshop Item (Speech)
Title:Pressure-driven Morphing Devices for 3D Shape Changes with Multiple Degrees-of-freedom
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vasista, SrinivasInstitut für Faserverbundleichtbau und Adaptronik - Adaptronikhttps://orcid.org/0000-0002-7917-6740
Riemenschneider, JohannesJohannes.Riemenschneider (at) dlr.dehttps://orcid.org/0000-0001-5485-8326
Mendrock, Torstentorsten.mendrock (at) dlr.deUNSPECIFIED
Monner, Hans PeterHans.Monner (at) dlr.dehttps://orcid.org/0000-0002-5897-2422
Date:2018
Journal or Publication Title:ASME 2018 Conferene on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018, Volume 1
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-0-7918-5194-4
Status:Published
Keywords:Morphing wing, pressure actuation, hybrid structures
Event Title:ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2018
Event Location:San Antonio, Texas, United States
Event Type:international Conference
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:07 Dec 2018 14:31
Last Modified:07 Dec 2018 14:31

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