| Aerospace facilities always work under the compound environment of centrifugal force and vibration, so it is of great significance to study this compound environment so as to forecast the latent failure that cannot be estimated in single environment test and improve the reliability of the equipments. The purpose of this paper is to study the adaptive control scheme of the vibration-centrifugal force compound environment.The review of the study relevant to vibration control and active noise control based on the adaptive filter was done first. And the theory of adaptive filter and its relevant adaptive algorithm was studied. The methods of vibration cancellation was explicated, and the feed-forward and feed-back control based on adaptive filter was studied. Meanwhile, a hybrid control scheme which combines the advantages of feed-forward and feedback control schemes was proposed. The problem of the vibration control of the electrodynamics vibrator under centrifugal force field was studied and it was concluded that the control aim of the problem included not only the vibration cancellation but also the departure rectification.According to this, the proposed hybrid control scheme was proposed to the control problem; The simulation of three kind of control schemes which are feed-forward control scheme, feedback control scheme and the proposed hybrid control scheme are done and it was concluded that feed-forward control scheme has a very good advantage of vibration cancellation while feedback scheme has anadvantage of departure rectification, and the proposed scheme has the advantages of the former both schemes, which performs very well in both vibration cancellation and departure rectification. In addition, a universal simulation system for vibration control based on the adaptive filter was set up on the base of the Simulink platform and the system can be used in all kinds of vibration control problems which are based on the adaptive filter. |
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