Relationship between Vibration Damping Effect and Excitation Amplitude of Superconducting Magnetic Levitation System by Gyroscopic Damper

Abstract

　In this study, the relationship between the vibration suppression effect of a gyroscopic damper and the excitation amplitude when a system supported elastically by a superconducting magnetic levitation system is subjected to vibration was investigated through numerical calculations and experiments. While superconducting magnetic levitation systems are capable of uncontrolled and stable levitation, they are prone to nonlinear vibrations caused by magnetic forces due to their non-contact and low damping. We have found that the use of a gyroscopic damper may be effective in simultaneously suppressing translational and tilting vibrations. Experimental results showed that the vibration suppression effect was weakened when the excitation amplitude was increased, and that the waveform had nonlinearity. In this report, the resonance characteristics of a superconducting magnetic levitation system and the possible effects of the vibration damping effect of the gyroscopic damper on the vibration amplitude are evaluated.