超导磁液推力轴承的结构设计及性能分析

为提高大型飞轮储能系统的效率和稳定性，设计了一种超导磁力与静压流体力相复合、由16块超导瓦和8块带小孔节流器的静压瓦组成的推力轴承。首先基于超导体局域模型和静压流体方程建立分析模型，然后采用解耦的方法分析复合轴承的刚度等性能指标，对复合轴承进行优化。结果表明复合轴承既可以保证稳定悬浮，又能保持较大的刚度，其功率损耗也在可接受范围内。

Structural Design and Performance Analysis of Superconducting Magnetic Liquid Thrust Bearings

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.