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Aeroelastic Topology Optimization of a Supersonic Wing

Same, Hossein | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50278 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Hadadpour, Hassan; Dehghani Firouzabadi, Rouhollah; Noorian, Mohammad Ali
  7. Abstract:
  8. A series of algorithms developed for performing aeroelastic topology optimization applying stress constraint on a three dimentional structure of a supersonic wing. The structure modeled using finite element method by three dimentional solid hexahedron elements. Bi-directional evolutionary structural optimization method used for developing optimization algorithms. In order to apply supersonic aerodynamic loading and developing aeroelastic model algorithms, the piston aerodynamic theory utilized. In order to apply static pressure loading, the maximum angle of attack of the wing performance is proposed. Using developed MATLAB code by modeling and meshing wing structure in ABAQUS a software package for aeroelastic topology optimization of a supersonic wing applying stress constraint is prepared. The flutter speed of the wing is proposed as the aeroelastic behavior that should be optimized. For this purpose, the difference of the coalescensing structure frequencies is proposed as the objective function of the optimization problem, applying stress constraint to meet the maximum allowable stress of the wing structure. Using the prepared software, the proposed objective achieved on the three dimentional structure model of a supersonic wing
  9. Keywords:
  10. Topology Optimization ; Supersonic Wing ; Finite Element Analysis ; Piston Theory ; Aeroelasticity ; Aeroelastic Behavior

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