Modelling and configuration control of wing-shaped bi-stable piezoelectric composites under aerodynamic loads
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Date
2013-08
Publication Type
Journal Article
ETH Bibliography
yes
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Abstract
Bi-stable composites have been considered for morphing applications thanks to their ability to hold two statically stable shapes with no energy consumption. In this paper, the modelling of the dynamic response of cantilevered wing-shaped bi-stable composites is presented. To this end, an analytical model approximating the dynamic response about each statically stable shape of wing-shaped bi-stable composites is derived. Theoretical modal properties are obtained to attain or stabilise a desired configuration following a previously introduced resonant control strategy. The resonant control technique is evaluated for a wing-shaped bi-stable composite subject to aerodynamic loads. Wind tunnel experiments are conducted on a wing-shaped specimen showing the ability of the control strategy to stabilise or attain a desired stable shape under aerodynamic loads.
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Publication status
published
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Book title
Journal / series
Volume
29 (1)
Pages / Article No.
453 - 461
Publisher
Elsevier
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Bi-stablewing; Unsymmetriccomposite; Morphing; Snap-through
Organisational unit
03507 - Ermanni, Paolo (emeritus) / Ermanni, Paolo (emeritus)