关键词: 电涡流阻尼器, 转子, 振动, 转子动力学

Abstract:

Based on the eddy current principle, a novel journal eddy current damper for rotor systems was presented. The basic structure and the dynamics model of the radial eddy current damper were analyzed. The frequency response functions of a flexible rotor system supported on the radial eddy current damper in the stationary, the rotor motion orbits at the steady state rotational speeds and the unbalance response curves in the slow acceleration operation were measured for different magnetic flux densities. It is shown that the dynamics behavior of the radial eddy current damper is easily controlled by the applied magnetic field, and the radial eddy current damper can significantly reduce the vibration of the rotor system.

Key words: eddy current damper, rotor, vibration, rotordynamics