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Holistic design and implementation of pressure-actuated cellular structures

Gramüller, Benjamin and Köke, Hardy and Hühne, Christian (2015) Holistic design and implementation of pressure-actuated cellular structures. Smart Materials and Structures, 24 (12), p. 125027. Institute of Physics (IOP) Publishing. DOI: 10.1088/0964-1726/24/12/125027 ISBN 09641726 ISSN 0964-1726

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Official URL: http://iopscience.iop.org/article/10.1088/0964-1726/24/12/125027/meta

Abstract

Providing the possibility to develop energy-efficient, lightweight adaptive components, Pressure-Actuated Cellular Structures (PACS) are primarily conceived for aeronautics applications. The realization of shape-variable flaps and even airfoils provides the potential to safe weight, increase aerodynamic efficiency and enhance agility. The herein presented holistic design process points out and describes the necessary steps for designing a real-life PACS structure, from the computation of truss geometry to the manufacturing and assembly. The already published methods for the form finding of PACS are adjusted and extended for the exemplary application of a variable-camber wing. The transfer of the form-finding truss model to a cross-sectional design is discussed. The end cap and sealing concept is described together with the implementation of the integral fluid flow. Conceptual limitations due to the manufacturing and assembly processes are discussed. The method’s efficiency is evaluated by Finite Element Method (FEM). In order to verify the underlying methods and summarize the presented work a modular real-life demonstrator is experimentally characterized and validates the numerical investigations.

Item URL in elib:https://elib.dlr.de/102152/
Document Type:Article
Title:Holistic design and implementation of pressure-actuated cellular structures
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gramüller, Benjaminbenjamin.gramueller (at) dlr.deUNSPECIFIED
Köke, Hardyhardy.koeke (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:6 November 2015
Journal or Publication Title:Smart Materials and Structures
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:24
DOI :10.1088/0964-1726/24/12/125027
Page Range:p. 125027
Publisher:Institute of Physics (IOP) Publishing
Series Name:Smart Materials and Structures
ISSN:0964-1726
ISBN:09641726
Status:Published
Keywords:PACS, pressure, shape variable, adaptive, morphing, cellular, bioinspired
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 - Flexible Aircraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Gramüller, Benjamin
Deposited On:14 Jan 2016 12:34
Last Modified:31 Jul 2019 19:59

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