【Abstract】 An active vibration controller for controlling the dynamics of a flexible rotor running in flexibly-mounted journal bearings is addressed. Active vibration control of the rotor system is deducede from analyzing the mechanical faults out of excessive vibrations of the high speed machines. The optimal strategy for satisfying the objective of active vibration control is analyzed by use of Hcontrol theory. The analysis results in the paper provide the theoretical reference for design of the rotor system.更多还原