Vibration analysis of an internally damped rotating shaft, modeled using Timoshenko beam theory, with general boundary conditions is performed analytically. The equations of motion including the effects of internal viscous and hysteretic damping are derived. Exact solutions for the complex natural frequencies and complex normal modes are provided for each of the six classical boundary conditions. Numerical simulations show the effect of the internal damping on the stability of the rotor system.

Issue Section:
Research Papers
Topics:
Boundary-value problems, Free vibrations, Stability, Damping, Computer simulation, Equations of motion, Rotors, Timoshenko beam theory, Vibration analysis
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