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Pneumatische Skelette - morphenden Strukturen aus dem 3D-Drucker

Vasista, Srinivas (2017) Pneumatische Skelette - morphenden Strukturen aus dem 3D-Drucker. [Other]

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Official URL: http://www.dlr.de/fa/Portaldata/17/Resources/dokumente/publikationen/innovationsberichte/DLR_FA_Innoberichtericht_2017.pdf

Abstract

A new morphing wing trailing edge featuring cells that elongate due to pressurised air demonstrates multiple smooth shape changes in wing camber, chord length, twist, sweep, and taper. Fabricated from PolyJet and composite 3D printing, the 400-millimetre chord prototype combines rubber-like and rigid-like digital materials in a way similar to hydrostatic skeletons found in nature. Each cell is orthotropic in stiffness, with low stiffness in the axial direction and high stiffness in the perpendicular direction, allowing the cell to elongate with low perpendicular deformation. Pressurising different combinations of cells leads to the different mode shapes. The six-cell demonstrator deflects ± 18 degrees at 1.5 bar and research is ongoing to increase size, material stiffness, and working pressure. Such a morphing device may reduce fuel and harmful aircraft emissions by adapting wing size and geometry smoothly in three dimensions in flight.

Item URL in elib:https://elib.dlr.de/115862/
Document Type:Other
Title:Pneumatische Skelette - morphenden Strukturen aus dem 3D-Drucker
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vasista, Srinivassrinivas.vasista (at) dlr.dehttps://orcid.org/0000-0002-7917-6740
Date:2017
Journal or Publication Title:Institut für Faserverbundleichtbau und Adaptronik - Innovationsbericht 2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 74-75
ISBN:ISSN (Print) 2567-7705, ISSN (Online) 2567-7713
Status:Published
Keywords:Morphing wing, pressure cell, 3D printing, additive manufacture
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:23 Nov 2017 14:47
Last Modified:12 Feb 2018 08:26

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