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Data Clustering for the Identification of the Bifurcation Behaviour in Non-Linear Aeroelastic Systems using a Coupled Harmonic Balance/Genetic Algorithm Approach
Vio, Gareth Arthur; Dimitriadis, Grigorios; Cooper, Jonathan Edward
2008In Proceedings of the 2008 International Conference on Noise and Vibration Engineering
 

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Keywords :
Data clustering; Harmonic Balance; Nonlinearity
Abstract :
[en] This paper describes an efficient method for calculating the bifurcation behaviour of an aeroelastic system using a Harmonic Balance expansion coupled with a Genetic Algorithm, combined with a clustering algorithm in order to determine all the solutions at every single flight condition. It will be shown how it is possible to obtain all the bifurcation branches in one step. Two clustering algorithms, K-Means and PAM, together with a number of cluster index techniques, such as Davies-Boulding, Calinski-Harabasz are investigated. The method is applied to an aeroelastic galloping problem as this phenomenon presents a number of co-existing limit cycles at a range of airspeeds.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Vio, Gareth Arthur;  University of Manchester > School of Mechanical Aerospace and Civil Engineering
Dimitriadis, Grigorios ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Cooper, Jonathan Edward;  University of Manchester > School of Mechanical Aerospace and Civil Engineering
Language :
English
Title :
Data Clustering for the Identification of the Bifurcation Behaviour in Non-Linear Aeroelastic Systems using a Coupled Harmonic Balance/Genetic Algorithm Approach
Publication date :
September 2008
Event name :
2008 International Conference on Noise and Vibration Engineering
Event organizer :
Katholieke Universiteit Leuven
Event place :
Leuven, Belgium
Event date :
du 15 septembre au 17 septembre 2009
Audience :
International
Main work title :
Proceedings of the 2008 International Conference on Noise and Vibration Engineering
Publisher :
Katholieke Universiteit Leuven, Heverlee, Belgium
ISBN/EAN :
978-90-7380-286-5
Pages :
Paper ISMA2008-0009
Available on ORBi :
since 29 September 2009

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