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Problem 4: An airfoil of mass m is suspended by a linear spring of stiffness k and a torsional spring of stiffness k, in

Problem 4: An airfoil of mass m is suspended by a linear spring of stiffness k and a torsional spring of stiffness k, in a wind tunnel as shown in the figure below. The C.G. is located at a distance e from point O. The mass moment of inertia of the airfoil about an axis passing through point O is Jo. Find the natural frequencies of the airfoil. 0 C.G. Figure Problem 4

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