Abstract
In order to attenuate the vibration of rotor system and to develop actuator of active vibration control of rotor system with high-performance performance, a novel radial eddy current damper for rotor system was presented based on the eddy current principle. The frequency response functions of the rotor system supported on the radial eddy current damper in the stationary, the rotor motion orbits in the steady state rotational speeds and the unbalance response curves in the slowly accelerating operation were measured on a flexible rotor system with two disks at different magnetic flux densities, and the effectiveness of the on-off control and the proportional control on rotor vibration were also studied. It is shown that the radial eddy current damper not only has many advantages such as a simple structure, no working fluid, no contact, but also the dynamic behavior of the radial eddy current damper is easily controlled by the application of a magnetic field, the radial eddy current damper can significantly suppress the vibration of the rotor system for properly designed case. The radial eddy current damper can be used as passive or active actuator in the rotor system.
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