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PACS – NUMERICAL APPROACH AND EVALUATION OF A CONCEPT FOR DIMENSIONING PRESSURE ACTUATED CELLULAR STRUCTURES

Gramüller, Benjamin and Hühne, Christian (2015) PACS – NUMERICAL APPROACH AND EVALUATION OF A CONCEPT FOR DIMENSIONING PRESSURE ACTUATED CELLULAR STRUCTURES. In: Deutscher Luft- und Raumfahrtkongress 2014. Deutscher Luft- und Raumfahrtkongress, Augsburg, Deutschland. DOI: urn:nbn:de:101:1-2015012312511

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Official URL: http://publikationen.dglr.de/?tx_dglrpublications_pi1[document_id]=340036

Abstract

A biologically inspired concept is investigated which can be utilized to develop energy efficient, lightweight and applicational flexible adaptive structures. Summarizing basic demands and barriers regarding shape changing structures, the basic challenges of designing morphing structures are listed. The analytical background describing the physical mechanisms of PACS is presented in detail. This work focuses on the numerical approach of calculating the geometrically highly nonlinear deformation states of pressure actuated cellular structures. Beyond the calculation of equilibrium states a form finding algorithm is presented, which allows determining structural designs following predefined target shapes. Initially made assumptions are dropped incrementally to show the effects on the accuracy of the modeling. FEM-based calculations and experimental test results provide the computational target data for the varying grade of simplifications. Representative of more complex structures, like aircraft control surfaces, the examined geometries are chosen to evaluate the numerical methods and to validate the functionality of the basic working principle.

Item URL in elib:https://elib.dlr.de/97391/
Document Type:Conference or Workshop Item (Speech)
Title:PACS – NUMERICAL APPROACH AND EVALUATION OF A CONCEPT FOR DIMENSIONING PRESSURE ACTUATED CELLULAR STRUCTURES
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gramüller, Benjaminbenjamin.gramueller (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:23 January 2015
Journal or Publication Title:Deutscher Luft- und Raumfahrtkongress 2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :urn:nbn:de:101:1-2015012312511
Status:Published
Keywords:adaptive structures, morphing
Event Title:Deutscher Luft- und Raumfahrtkongress
Event Location:Augsburg, Deutschland
Event Type:national 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 - Flexible Aircraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Gramüller, Benjamin
Deposited On:21 Jul 2015 14:55
Last Modified:31 Jul 2019 19:54

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