取付台剛性を考慮にいれたオーバハング回転軸系のアクティブ制振

概要

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This paper describes a method to effectively reduce the unbalanced vibration of an overhung rotor system. We propose a hybrid type damping device in which a bearing pedestal is supported elastically by rubber springs and controlled actively by electromagnetic actuators. The damping device is mounted in a motor casing which is set on an elastic stand. When the damping device is supported elastically, the suppression effect often deteriorates. In order to prevent this deterioration, we apply a stiffness control which is achieved by conducting positive feedback of the displacement signal. In the analysis, we calculate the controller gains that minimized the compliance of the overhung portion in consideration of the stand stiffness. In the experiment, the results correspond to the analytical results, and we confirm that the application of the stiffness controller is a highly effective method for vibration suppression.
一般社団法人日本機械学会の論文
1998-09-25