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Example A shaft, carrying a rotor of weight 100 N and eccentricity 2.5 mm, rotates at 1200 rpm. Determine (a) the steady-state whirl amplitude

Example A shaft, carrying a rotor of weight 100 N and eccentricity 2.5 mm, rotates at 1200 rpm. Determine (a) the steady-state whirl amplitude and (b) the maximum whirl amplitude during start-up conditions of the system. Assume the stiffness of the shaft as 50x103 N/m and the external damping ratio as 0.1.

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