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Abstract
This paper deals with a flutter analysis and experimental study of a inclined web received local cross-flow. The unsteady fluid force acting on the web surface is calculated by using Doublet-point method, which is based on the unsteady lifting surface theory. The equation of motion of the sheet coupled with the fluid flow is derived by employing the finite element method. The stability of the system is examined by the characteristic roots obtained from the flutter determinant. The effects of inclination angle, non-dimensional tension, aspect ratio, cross-flow distance on the flutter velocity and mode are clarified. Moreover, the local work by the fluid force on the sheet surface, and instability mechanism are clarified.
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