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Wing morphing control with shape memory alloy actuators


Citation

Bil, Cees and Massey, Kevin and Abdullah, Ermira Junita (2013) Wing morphing control with shape memory alloy actuators. Journal of Intelligent Material Systems and Structures, 24 (7). pp. 879-898. ISSN 1045-389X; ESSN: 1530-8138

Abstract

Aircraft morphing is referred to as the ability for an aircraft to change its geometry in flight. Formally, flaps, spoilers, and control devices are considered morphing, but in general, morphing in aerospace is associated with geometrical changes using smart materials such as shape memory alloys. Shape memory alloy is a material that changes shape under heating and produces force and deflections, which make it potential actuator for a wing morphing system. The motivation behind this study is the application to small-sized and medium-sized unmanned air vehicles and the potential to increase range or endurance for a given fuel load through improved lift-to-drag ratio. The camber line of an airfoil section, the predominant parameter affecting lift and drag, is changed by resistive heating of a shape memory alloy actuator and cooling in the surrounding air. Experiments were conducted under wind tunnel conditions to verify analysis and to investigate the effects of its application on the aerodynamic behavior of the wing. This study investigated three control methodologies: the conventional proportional–integral–derivative controller, proportional–integral–derivative with robust compensator, and proportional–integral–derivative with anti-windup compensator. The latter proved to have superior performance in achieving and maintaining a required level of morphing. In addition, the power required to the shape memory alloy actuators under aerodynamic load, and the effect of ambient temperature was also investigated.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1177/1045389X12471866
Publisher: Sage Publications
Keywords: Aerodynamic efficiency; Airfoil camber; Control; Electrostrictive; Morphing; Piezoelectric; Shape memory
Depositing User: Nabilah Mustapa
Date Deposited: 18 Dec 2015 05:35
Last Modified: 18 Dec 2015 05:35
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1177/1045389X12471866
URI: http://psasir.upm.edu.my/id/eprint/28783
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