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Active Control for Nonlinear Aeroelastic Systems / Shakir Jiffri; Hamed Haddad Khodaparast; Marinos Manolesos; Sebastiano Fichera

International Forum on Aeroelasticity and Structural Dynamics (IFASD 2019), Savannah, Georgia, USA. 10-13 June 2019., Volume: 1., Pages: 363 - 377

Swansea University Authors: Shakir, Jiffri, Hamed, Haddad Khodaparast, Marinos, Manolesos

Abstract

The dynamic responses to aeroelastic gusts/manoeuvres play an important partacross much of the design and development of an aircraft and have an impact upon structuraldesign, aerodynamic characteristics, weight, flight control system design, control surfacedesign, and performance. They determine the...

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Published in: International Forum on Aeroelasticity and Structural Dynamics (IFASD 2019), Savannah, Georgia, USA. 10-13 June 2019.
ISBN: 978-1-7138-0800-8
Published: New York Curran Associates, Inc. 2020
Online Access: http://www.proceedings.com/53726.html
URI: https://cronfa.swan.ac.uk/Record/cronfa55474
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Abstract: The dynamic responses to aeroelastic gusts/manoeuvres play an important partacross much of the design and development of an aircraft and have an impact upon structuraldesign, aerodynamic characteristics, weight, flight control system design, control surfacedesign, and performance. They determine the most extreme stress levels, fatigue damage, anddamage tolerance for a particular design. To this end, there has been great interest in efficientloads alleviation in aircraft structures.The ultimate aim of this project is to study the dynamic behaviour of a nonlinear aeroelasticsystem due to gust loads, and to investigate the use of linear/nonlinear active control with theaim of mitigating vibrations in the system, and reducing the aerodynamic loads that would, inthe real world, be introduced into the airframe. The present paper discusses the authors’existing research which will serve as the foundation for the aforementioned aim of the project.Implementation of techniques such as partial feedback linearisation, the combination in realtime of simulation-based and experimentally measured data during control – which weenvisage will play a vital role in the current project – are addressed, including results ofclosed-loop control of a pitch-plunge aerofoil. As the present research is ongoing – and anysignificant results are yet to be generated – this paper will present briefly the current statusand next steps planned for the project.
Item Description: AEROELASTICITY AND STRUCTURAL DYNAMICS. INTERNATIONAL FORUM
College: College of Engineering
Start Page: 363
End Page: 377