Abstract
In this paper, an electrodynamic vibration suppressor is proposed that can be used to suppress the main component of structural vibrations. This suppressor includes three main parts: an electrodynamic actuator, a power amplifier and a vibration controller. The intrinsic characteristics of the electrodynamic actuator were studied. After proposing a variable-step feedback harmonic cancellation algorithm, a controller was developed on the basis of this algorithm. To verify the effects of the suppressor, an experiment was conducted on a slender cylinder shell. The results show that the vibration was reduced by approximately 73%.
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