In this paper, the possibility of active vibration damping in rotor blades has been analyzed. The active damping element is a piezoelectric element. A cantilever beam was chosen as the model for the rotor blades. The first part of the paper presents an analysis of the influence of rotation on the beam’s vibrations. The second part presents the results of numerical simulations showing the influence of the position and length of the piezoelectric element on the vibration amplitude. An analysis of the results is also presented.In this paper, the problem of active vibration damping in rotating elements such as rotor blades will be presented. This is a problem that is still not fully analyzed, and one that could improve the performance characteristics of rotors. (…)
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Source: Logistyka Magazine
Active vibration reduction of a rotating blade using piezoelectric elements – PDF file for download