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Proceedings Paper

Buckling control of morphing composite airfoil structure using multi-stable laminate by piezoelectric sensors/actuators
Author(s): Shahin Zareie; Abolghassem Zabihollah; Aydin Azizi
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Paper Abstract

In the present work, an unsymmetric laminated plate with surface bonded piezoelectric sensors, and actuators has been considered. Piezoelectric sensor were used to monitor the load and deformation bifurcation occurs. Monitoring the shape and load of a morphing structure is essential to ascertain that the structure is properly deployed and it is not loaded excessively ,thus, preventing structural to failure. A piezoceramic actuator is used to provide activation load and to force the structure to change its stability state from one to another. A non-linear finite element model based on the layerwise displacement theory considering the electro-mechanical coupling effects of piezoelectric elements has been developed for simulation purposes. A control mechanism is also employed to actively control the shape of the structure. It is observed that, utilizing multistable composite to design a morphing structure may significantly reduce the energy required for changing the shape. Further controlling the buckling phenomena using piezoelectric sensor and actuator along with an ON/OFF controller can effectively and efficiency enhance the performance of the morphing structure during manoeuver.

Paper Details

Date Published: 28 April 2011
PDF: 6 pages
Proc. SPIE 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011, 79781Z (28 April 2011); doi: 10.1117/12.880409
Show Author Affiliations
Shahin Zareie, Sharif Univ. of Technology (Iran, Islamic Republic of)
Abolghassem Zabihollah, Sharif Univ. of Technology (Iran, Islamic Republic of)
Aydin Azizi, Sharif Univ. of Technology (Iran, Islamic Republic of)


Published in SPIE Proceedings Vol. 7978:
Behavior and Mechanics of Multifunctional Materials and Composites 2011
Zoubeida Ounaies; Stefan S. Seelecke, Editor(s)

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