Levitation Drift of Flywheel and HTSC Bearing System Caused by Mechanical Resonance
نویسندگان
چکیده
The stability of positioning is one of the most important characteristics in ywheel energy storage systems with high-temperature superconducting (HTSC) magnetic bearing . In this paper, we experimentally discuss the drift of the levitation gap in the ywheel system under the revolution. When the revolution speed of the ywheel rotor passes through the mechanical resonant frequencies, the dynamics of the rotor shows the self oscillatory vibration. The vibration has a possibility to induce the nonlinear response which depends on the hysteretic force-displacement relation of HTSC bearing system. The experimental results show the substantial levitation drift caused by the gyroscopic and the translational motion.
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