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AEROFLEX SIGNED

AEROelastic instabilities and control of FLEXible Structures

Total Cost €

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EC-Contrib. €

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Partnership

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Project "AEROFLEX" data sheet

The following table provides information about the project.

Coordinator
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES 

Organization address
address: CHEMIN DE LA HUNIERE
city: PALAISEAU
postcode: 91120
website: www.onera.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website http://w3.onera.fr/erc-aeroflex/
 Total cost 1˙377˙290 €
 EC max contribution 1˙377˙290 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-07-01   to  2020-06-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES FR (PALAISEAU) coordinator 1˙377˙290.00

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 Project objective

Aeroelastic instabilities are at the origin of large deformations of structures and are limiting the capacities of products in various industrial branches such as aeronautics, marine industry, or wind electricity production. If suppressing aeroelastic instabilities is an ultimate goal, a paradigm shift in the technological development is to take advantage of these instabilities to achieve others objectives, as reducing the drag of these flexible structures. The ground-breaking challenges addressed in this project are to design fundamentally new theoretical methodologies for (i) describing mathematically aeroelastic instabilities, (ii) suppressing them and (iii) using them to reduce mean drag of structures at a low energetic cost. To that aim, two types of aeroelastic phenomena will be specifically studied: the flutter, which arises as a result of an unstable coupling instability between two stable dynamics, that of the structures and that the flow, and vortex-induced vibrations which appear when the fluid dynamics is unstable. An aeroelastic global stability analysis will be first developed and applied to problems of increasing complexity, starting from two-dimensional free-vibrating rigid structures and progressing towards three-dimensional free-deforming elastic structures. The control of these aeroelastic instabilities will be then addressed with two different objectives: their suppression or their use for flow control. A theoretical passive control methodology will be established for suppressing linear aeroelastic instabilities, and extended to high Reynolds number flows and experimental configurations. New perturbation methods for solving strongly nonlinear problems and adjoint-based control algorithm will allow to use these aeroelastic instabilities for drag reduction. This project will allow innovative control solutions to emerge, not only in flutter or vortex-induced vibrations problems, but also in a much broader class of fluid-structure problems.

 Publications

year authors and title journal last update
List of publications.
2019 Jean-Lou Pfister, Olivier Marquet, Marco Carini
Linear stability analysis of strongly coupled fluid–structure problems with the Arbitrary-Lagrangian–Eulerian method
published pages: 663-689, ISSN: 0045-7825, DOI: 10.1016/j.cma.2019.06.024
Computer Methods in Applied Mechanics and Engineering 355 2020-03-05

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