Application of Higher-Order Harmonic Balance to Non-Linear Aeroelastic Systems

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

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Application of Higher-Order Harmonic Balance to Non-Linear Aeroelastic Systems

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

2006 • In Proceedings of the 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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Keywords :

Nonlinear Aeroelastic Systems; Harmonic Balance; Higher Order Harmonic Balance; Limit Cycle Oscillations

Abstract :

[en] The influence of non-linearities on modern aircrafts is becoming of increasing impor- tance. The ability to accurately characterise LCOs and to predict at which speed they occur is very important. Higher Order Harmonic Balance (HOHB) methods have attracted some interest from the aeroelastic community over the last two decades. Such methods carry the promise of high quality stability prediction and Limit Cycle Oscillation (LCO) amplitude and frequency prediction for non-linear aeroelastic systems. In this paper, a Higher Order Harmonic Balance scheme is devised to extend the effectiveness of the method to systems undergoing secondary Hopf bifurcations. It is shown that the proposed harmonic shifting technique can allow the HOHB method to accurately estimate both branches of limit cycles occurring after the second bifurcation.

Disciplines :

Aerospace & aeronautics engineering

Author, co-author :

Dimitriadis, Grigorios ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale

Vio, Gareth Arthur; University of Manchester > School of Mechanical Aerospace and Civil Engineering

Cooper, Jonathan Edward; University of Manchester > School of Mechanical Aerospace and Civil Engineering

Language :

English

Title :

Application of Higher-Order Harmonic Balance to Non-Linear Aeroelastic Systems

Publication date :

May 2006

Event name :

47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Event organizer :

AIAA, ASME, ASCE, AHS, ASC

Event place :

Newport, Rhode Island, United States

Event date :

du 1 mai au 4 mai 2006

Audience :

International

Main work title :

Proceedings of the 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Publisher :

AIAA, United States

Pages :

Paper AIAA 2006-2023

Additional URL :

http://pdf.aiaa.org/preview/CDReadyMSDM06_1172/PV2006_2023.pdf

Available on ORBi :

since 30 September 2009

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Bibliography

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