Abstract
In this paper, a rotating thin-walled beam theory incorporating fiber-reinforced and piezo-composite is developed and used to study the active control for vibration suppression. The structural model accounts for transverse shear strain, primary and secondary warpings, pretwist and presetting angles. In addition, the centrifugal stiffening effect, tennis-racket effect, flapping-lagging-transverse shear and extension-twist couplings are accounted as well. Based on a negative velocity feedback control algorithm, the effective damping performance is optimized by studying anisotropic characteristics of piezo-actuators and elastic tailoring of the host structure. Moreover, relations between damping control authority and design factors, such as rotor speed, presetting and pretwist angles are investigated in detailed.
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