Abstract
In recent years, Active Magnetic Bearings (AMBs) characterized by non-contact support without mechanical loss have been applied in industrial rotors. The Purpose of this research is to pass the 2nd bending critical speed in the flexible rotor supported by AMBs. This paper deals with the following topics about AMB over-hung rotor system: (1) Method of controller design based on the phase adjustment method and the evaluation results by using sensitivity functions, (2) Evaluation results by using Q-value function (new method), and (3) Application of modal balancing method and passing the 2nd bending mode for rotational speed.
