Reference : On the solution of the aeroelastic galloping problem
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
On the solution of the aeroelastic galloping problem
Vio, Gareth Arthur [University of Manchester > School of Engineering > > >]
Dimitriadis, Grigorios mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Cooper, Jonathan Edward [University of Manchester > School of Engineering > > >]
Proceedings of the 2004 International Conference on Noise and Vibration Engineering
Katholieke Universiteit Leuven
2004 International Conference on Noise and Vibration Engineering
du 20 septembre 2004 au 22 septembre 2004
Katholieke Universiteit Leuven
[en] Aeroelastic galloping ; Nonlinear Aeroelasticity ; Limit Cycle Oscillations
[en] A global stability analysis of the transverse galloping of a square section beam in a normal steady ow was
performed. The analysis was applied to a mathematical model using experimentally measured stationary
aerodynamic forces. The system was modelled as an ordinary differential equation with small non-linearity
in the velocity term. Three methods are used for the stability analysis: 1. a harmonic balance approach, 2.
normal form theory, 3. cell mapping. The resulting stability predictions were compared with each other and
with results obtained from numerical integration. It is shown that the hysteretic stability of the non-linear
aeroelastic oscillator was captured by all the methods. Additionally, the methods had a varying degree of
success in predicting the amplitude of limit cycle oscillations undergone by the aeroelastic oscillator.
Researchers ; Professionals

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