Mechanism study and design of electrodynamic vibration suppressor

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%.