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

Paper published in a book (Scientific congresses and symposiums)

Vio, Gareth Arthur; Dimitriadis, Grigorios; Cooper, Jonathan Edward

2008 • In 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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Bibliography

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