Abstract

The balancing of the rotor system is important when it rotates in the high speed. We investigate the vibration control and presumption of the rotor unbalance of the nonlinear rotor system by using disturbance observer. Firstly, we consider the case of the nonlinear Jeffcott rotor and clarify the validity of this method. Then, we study the case of finite element rotor model with nonlinear spring characteristics at the position of the bearing.

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