Reference : Suppression of simulated self-excited oscillation using smart materials on flexible w...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Suppression of simulated self-excited oscillation using smart materials on flexible wing structure
Abdul Razak, N. [Universiti Sains Malaysia > Engineering Campus > > >]
Nasip, N. S. [Universiti Sains Malaysia > Engineering Campus > > >]
Hawari, A. F. [Universiti Sains Malaysia > Engineering Campus > > >]
Dimitriadis, Grigorios mailto [Université de Liège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Proceedings of the International Forum on Aeroelasticity and Structural Dynamics, IFASD 2015
Paper IFASD-2015-150
International Forum on Aeroelasticity and Structural Dynamics
from 28-06-2015 to 02-07-2015
Central Aerohydrodynamics Institute (TsAGI)
Saint Petersburg
[en] Flutter ; Limit cycle oscillation ; Piezoelectric ; Active control
[en] Suppression of simulated self-excited oscillation due to aeroelastic effects using piezoelectric patches is reported. The focus of the present work is suppressing simulated flutter oscillation using piezoelectric patches bonded to the wing structure. First, a clean wing is exposed to airflow in the wind tunnel where it experienced limited amplitude oscillation. The responses were recorded. This is followed by bonding piezoelectric patches to the identical wing that was tested in the wind tunnel. Two of the patches were used as actuators to simulate self-excited oscillation in a control manner. The selected mode for excitation is 1st bending mode. The other two patches were used as suppressor for active control using negative velocity feedback Single-Input, Single-Output approach. The single input signal for negative feedback is also sensed using piezoelectric patches. The controller manages to suppress the simulated flutter response to a lower oscillation amplitude values. This works demonstrated the used of piezoelectric material as actuator to reproduce the oscillation amplitude during self-excited oscillation and suppress the oscillation at the same time.
Researchers ; Professionals

File(s) associated to this reference

Fulltext file(s):

Restricted access
84 IFASD-2015-150.pdfPublisher postprint972.87 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.