سال انتشار: ۱۳۸۶

محل انتشار: هفتمین همایش انجمن هوافضای ایران

تعداد صفحات: ۷

نویسنده(ها):

S.A. Sina – M.Sc. student, Dept. of Aerospace Engineering, Sharif University of Tech., Azadi Ave., Tehran, Iran
H. Razie – M.Sc. student, Sharif university of technology, Dept. of Aerospace Eng.
H. Haddadpour – Associate Professor, Sharif university of technology, Dept. of Aerospace Eng.

چکیده:

A unified aeroelastic model developed toward investigating the flutter instability and aeroelastic response of a 2-D plunging-pitching airfoil to gust loads in the incompressible flow, is presented. The unsteady aerodynamic loads are based on two different models, Indicial functions, 2-D Vortex Lattice method, in conjunction with flat plate assumptions. Parameter study on eigenvalues of aerodynamic model, flutter boundary and airfoil aeroelastic response is presented and a special attention is given to the different discritization schemes in solving governing differential equations of motion. Comparison is made between different aerodynamic models, shows good agreement between models.