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Structural Design and Performance Analysis of Superconducting Magnetic Liquid Thrust Bearings |
YAN Gang1;YUAN Xiaoyang1;CHEN Runlin2;JIA Qian1;JIN Yingze1 |
1. Key Laboratory of Modern Design and Rotor Bearing System, Ministry of Education,Xian Jiaotong University, Xian, 710049
2. School of Machinery and Precision Instrument Engineering,Xian University of Technology, Xian, 710048 |
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Abstract In order to improve the efficiency and stability of large-scale flywheel energy storage systems, a thrust bearing which consisted of 16 superconducting shoes and 8 small orifice restrictors that were composed of static pressure tiles was designed, combined with superconducting magnetic force and hydrostatic fluid force. Firstly, an analysis model was established based on superconductor local model and hydrostatic fluid equation. And then, performance indexes such as stiffness of the composite bearings were analyzed by decoupling method, and the composite bearings were optimized. The results show that the composite bearings may ensure stable suspension and maintain high rigidity, and the power loss is within the acceptable ranges.
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