Vibration and Control of Axially Moving Belt System: Analysis and Experiment by Parametric Excitation

Abstract

High-speed operation is required for industrial machines equipped with belt driving systems. The belt is, however, subject to a speed limitation barrier due to the occurrence of bending mode vibration reso nances caused by machinery error, for example, pulley eccentricity. To combat these resonances of the linear system, the parametric excitation method providing the belt tension fluctuation is proposed through the con cept of the open-loop vibration control theory. This analysis considers two types of fluctuation excitation featured by the frequency synchronized with one or two times the pulley revolution. In this paper, the math ematical model is analyzed by using the equation of motion of the forced vibration including the parametric excitation. We apply this method to the belt system and test the validity of it through experimentation.

Keywords

Vibration control parametric excitation moving belt stability

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