The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Active control for flutter suppression: an experimental investigation

Active control for flutter suppression: an experimental investigation
Active control for flutter suppression: an experimental investigation
This paper describes an experimental study involving the implementation of the method of receptances to control binary flutter in a wind-tunnel aerofoil rig. The aerofoil and its suspension were designed as part of the project. The advantage of the receptance method over conventional state-space approaches is that it is based entirely on frequency response function measurements, so that there is no need to know or to evaluate the system matrices describing structural mass, aeroelastic and structural damping and aeroelastic and structural stiffness. There is no need for model reduction or the estimation of unmeasured states, for example by the use of an observer. It is demonstrated experimentally that a significant increase in the flutter margin can be achieved by separating the frequencies of the heave and pitch modes. Preliminary results from a complementary numerical programme using a reduced-order model, based on linear unsteady aerodynamics, are also presented
Papatheou, E.
6c2ea46b-0e70-4639-81bf-f7eb35ca1afa
Tantaroudas, N. D.
12303349-1026-48e8-ba09-8c4d59f65d43
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Cooper, J. E.
7aa53b7a-2905-43fb-98f4-ce0b7dd628ba
Mottershead, J. E.
a6691044-dc2b-4ac0-8249-ee5d8b445150
Papatheou, E.
6c2ea46b-0e70-4639-81bf-f7eb35ca1afa
Tantaroudas, N. D.
12303349-1026-48e8-ba09-8c4d59f65d43
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Cooper, J. E.
7aa53b7a-2905-43fb-98f4-ce0b7dd628ba
Mottershead, J. E.
a6691044-dc2b-4ac0-8249-ee5d8b445150

Papatheou, E., Tantaroudas, N. D., Da Ronch, A., Cooper, J. E. and Mottershead, J. E. (2013) Active control for flutter suppression: an experimental investigation. International Forum on Aeroelasticity and Structural Dynamics (IFASD), Bristol, United Kingdom. 23 - 26 Jun 2013. 14 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper describes an experimental study involving the implementation of the method of receptances to control binary flutter in a wind-tunnel aerofoil rig. The aerofoil and its suspension were designed as part of the project. The advantage of the receptance method over conventional state-space approaches is that it is based entirely on frequency response function measurements, so that there is no need to know or to evaluate the system matrices describing structural mass, aeroelastic and structural damping and aeroelastic and structural stiffness. There is no need for model reduction or the estimation of unmeasured states, for example by the use of an observer. It is demonstrated experimentally that a significant increase in the flutter margin can be achieved by separating the frequencies of the heave and pitch modes. Preliminary results from a complementary numerical programme using a reduced-order model, based on linear unsteady aerodynamics, are also presented

Text
IFASD-2013-8D.pdf - Other
Download (796kB)

More information

Published date: June 2013
Additional Information: Paper 2013-8D
Venue - Dates: International Forum on Aeroelasticity and Structural Dynamics (IFASD), Bristol, United Kingdom, 2013-06-23 - 2013-06-26
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 353428
URI: http://eprints.soton.ac.uk/id/eprint/353428
PURE UUID: caca007b-6ba8-448f-a101-66aadd35afaa

Catalogue record

Date deposited: 06 Jun 2013 13:35
Last modified: 20 Nov 2021 14:53

Export record

Contributors

Author: E. Papatheou
Author: N. D. Tantaroudas
Author: A. Da Ronch
Author: J. E. Cooper
Author: J. E. Mottershead

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×