High-Bandwidth Morphing Actuator for Aeroelastic Model Control



Fichera, Sebastiano ORCID: 0000-0003-1006-4959, Isnardi, Irma ORCID: 0000-0002-3362-0236 and Mottershead, John E ORCID: 0000-0003-1279-2562
(2019) High-Bandwidth Morphing Actuator for Aeroelastic Model Control. AEROSPACE, 6 (2). p. 13.

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Abstract

<jats:p>The design and testing of a high-bandwidth continuous actuator for aeronauticalapplications is presented hereinafter. The actuator has a dual goal of controlling both the aeroelasticbehaviour and the flight mechanics of the model in which it is installed. In order to achieve theseaims, the actuation bandwidth of the active aerofoil, as well as its static camber variation, have to besufficiently high. The camber morph is achieved by using tailored piezoelectric patches in a sandwichconfiguration with a linear trailing edge slider to allow the necessary compliance. The morphingactuator is designed for a NACA 0018 aerofoil with a chord of 300mmand a span of 40 mm. Static anddynamic experimental tests are carried out on a prototype, and a camber variation control techniqueis implemented. It is proved that the actuator bandwidth is up to 25 Hz and the equivalent maximumdeflection is 15 degrees. This solution is shown to be a viable light-weight alternative to theconventional brushless/servo-motor approach currently used in aeroelastic models.</jats:p>

Item Type: Article
Additional Information: **ITEM MARKED CONFIDENTIAL – HELD IN REVIEW** Date: 2014-11-01 (submitted)
Uncontrolled Keywords: high bandwidth, morphing, piezoelectric actuator, aeroelastic wind tunnel model
Depositing User: Symplectic Admin
Date Deposited: 21 May 2019 11:52
Last Modified: 15 Mar 2024 08:36
DOI: 10.3390/aerospace6020013
Open Access URL: https://doi.org/10.3390/aerospace6020013
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3041918

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