物理学报Issue(1)：1-11,11.DOI:10.7498/aps.64.018403
超导磁悬浮支承系统干扰力矩及漂移误差分析∗
Analysis of magnetic disturbance torque and drift error in a sup erconducting susp ension system
摘要
Abstract
In a superconducting suspension system, the disturbance torque acting on the superconducting rotor may not be generated if the rotor is an ideal sphere and in the complete Meissner state. However, in fact there exist always spherical tolerance during manufacturing process of the sphere and the centrifugal distortion due to the high speed rotation. Therefore, the disturbance torque will be generated due to the magnetic levitation force not getting through the mass center of the rotor when the rotor is levitated in the magnetic field. Based on the physical mechanism of the superconducting-magnetic bearing, the disturbance torque and the drift error are analyzed. The disturbance torques include the main torque due to asphericity of the sphere, the second torque generated by the combination of asphericity, uncentering and assembly errors. The model of drift rate is also deduced and the drift rate is calculated by substituting the rotor parameters into the formula. This analysis provides a reference for the rotor drift testing and error compensation, and is instructive for the optimization design of the rotor structure.关键词
超导磁悬浮/超导转子/干扰力矩Key words
superconducting suspension/superconducting rotor/disturbance torque引用本文复制引用
崔春艳,胡新宁,程军胜,王晖,王秋良..超导磁悬浮支承系统干扰力矩及漂移误差分析∗[J].物理学报,2015,(1):1-11,11.基金项目
国家自然科学基金(批准号:51107135)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant No.51107135) （批准号:51107135）
