Heat Transfer Analysis of Superconducting Magnetically Levitation Rotor Startup Process

• Published in: IEEE transactions on applied superconductivity 2023-11, Vol.33 (8), p.1-6
• Main Authors: Cui, Xu, Wang, Qiuliang, Hu, Xinning, Cui, Chunyan, Zhang, Yuan, Niu, Feifei, Huang, Xing
• Format: Article
• Language: English
• Subjects: Accelerometers; Conduction heating; Conduction model; Conductive heat transfer; Drift; Heat transfer; Heat transfer analysis; Heating systems; Magnetic levitation; Mathematical models; Mechanical components; Niobium; Radiation distribution; Rotors; superconducting magnetic levitation rotor; Superconducting magnets; Superconductivity; temperature conduction model; Temperature control; Temperature effects; thermal design principles
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2023.3300019

Superconducting magnetic levitation rotors have good application prospects in fields such as gravimeters, accelerometers, and inertial instruments. Aiming at the little research on the heat transfer characteristics of superconducting magnetic levitation rotor, this paper introduces the structure of the superconducting magnetic levitation rotor and the heat conduction model. Then, the temperature relationship of the rotor at steady state is obtained and the surface radiation distribution of the rotor during temperature rise is calculated. The results show that the temperature accuracy of superconducting magnetic levitation rotor is critical to the drift accuracy. The drift caused by temperature change mainly depends on the accuracy of mechanical components and the stability of temperature control system, which can provide some reference for the safe operation of the rotor.