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Optimization of Actuators Position of a Low Aspect Ratio Variable-camber Wing and Derivation of Its Aerodynamic

Mohammadi Zadeh, Sina | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50700 (08)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Dehghani Firouzabadi, Rouhollah; Haddadpour, Hassan
  7. Abstract:
  8. Morphing concepts can potentially improve the performance and fuel consumption of modern aircrafts. Smart materials can reduce the weight and complexity, and also are of the best choices to improve efficiency and reliability for realizing morphing wings. Developing of a simple model and optimization of smart piezocomposite actuators position of a thin wing with variable camber is considered. The goal is to gain desired properties in incompressible subsonic regime. Lifting surfaces of a composite wing are simplified using shell model. Keeping the problem simple, a piezocomposite patch is used to change the shell curvature. Basic modes are extracted from FEM software and behavior of bimorph actuator is estimated by Rayleigh-Ritz method. To investigate aerodynamic behavior of a low-subsonic wing, steady vortex-ring based panel method is used. Changing the position along chord and span, and applied voltage, the actuator effectiveness is investigated and complication of responses is explained. Also, the effectiveness of smart actuator in comparison with conventional flap is studied. At the end, placement of a pair of smart actuators is optimized using GA algorithm
  9. Keywords:
  10. Panel Method ; Piezoelectric Actuator ; Flexible Wing ; Skin Deflected Wing ; Aerodynamic Coefficient ; Smart Actuator ; Steady State Panel Method ; Rayleigh-Ritz Method

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