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Buckling control of morphing composite airfoil structure using multi-stable laminate by piezoelectric sensors/actuators

Zareie, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1117/12.880409
  3. Abstract:
  4. 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
  5. Keywords:
  6. Layerwise displacement theory ; Morphing structure ; ON/OFF controller ; Piezoelectric sensors ; Airfoil structures ; Control mechanism ; Displacement theory ; Laminated plate ; Layer-wise ; Morphing ; Morphing structures ; Multistable ; Non-linear finite element model ; Piezo-ceramic actuators ; Piezoelectric elements ; Piezoelectric sensor and actuator ; Airfoils ; Buckling ; Computer simulation ; Controllers ; Electric sensing devices ; Energy efficiency ; Finite element method ; Laminated composites ; Mechanics ; Piezoelectric actuators ; Piezoelectric transducers ; Piezoelectricity ; Sensors ; Structural design
  7. Source: Proceedings of SPIE - The International Society for Optical Engineering, 7 March 2011 through 9 March 2011, San Diego, CA ; Volume 7978 , 2011 ; 0277786X (ISSN) ; 9780819485403 (ISBN)
  8. URL: http://spie.org/Publications/Proceedings/Paper/10.1117/12.880409