Analysis of Mass Unbalance Torque on a Spinning Superconducting Rotor

Xinning Hu,Fei Gao,Chunyan Cui,Jianhua Liu,Hui Wang,Yi Li,Zhipeng Ni,Junsheng Cheng,Luguang Yan

Applied Superconductivity, IEEE Transactions （2014）

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摘要

A spherical superconducting rotor is spinning at low temperature of 4.2 K. The mass unbalance torque is generated by gravity, inertia, and suspension force acting on the rotor that has a mass eccentricity. An analytical model is proposed to calculate the mass unbalance torques on the rotor. Analytical results show that the mass unbalance torque due to the axial mass eccentricity affects the rotor drift, and that the radial mass eccentricity affects the rotor speed and the vibration.

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关键词

magnetic levitation,rotors,superconducting devices,analytical model,axial mass eccentricity,gravity,inertia,mass unbalance torque,radial mass eccentricity,rotor drift,rotor speed,rotor vibration,spherical superconducting rotor,spinning superconducting rotor,superconducting magnetic levitation technology,suspension force,temperature 4.2 k,critical speed,meissner effect,disturbance torque,mass eccentricity,superconducting spherical rotor,torque,vibrations

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