Wing flutter analysis with an uncoupled method

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Date

2003

Author

Kavukcuoğlu, Koray

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In this thesis, flutter of AGARD Wing 445.6 is predicted with a new approach. The unsteady aerodynamic loads are calculated with an unstructured Euler solver. Surface interpolation is used to transfer the calculated mode shapes from the structural mesh to the CFD mesh and to transfer pressure distributions in the opposite direction. Using the transferred pressure distributions, nodal force distributions on the finite element model are calculated. A polynomial is fitted to the nodal forces in terms of the reduced frequency. The resulting polynomial eigenvalue problem is solved to obtain flutter frequency.

Subject Keywords

Fluid dynamics, Aeroelasticity, Flutter, AGARD wing 445.6, CFD, Computational fluid dynamics

URI

https://hdl.handle.net/11511/13518

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

K. Kavukcuoğlu, “Wing flutter analysis with an uncoupled method,” M.S. - Master of Science, Middle East Technical University, 2003.