期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 32, 期 1, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2021.3124527
关键词
High-temperature superconductors; Resonant frequency; Force; Temperature measurement; Temperature; Steel; Dynamics; Dynamic model; high-temperature super-conductivity (HTS); nonlinear vibration; temperature
资金
- Innovation Fund from Innovation Academy for Microsatellites of CAS of China
This study investigates the effects of temperature on the dynamic characteristics of a high-T-c superconductor and permanent magnet system. The resonant frequency of the system decreases with increasing field cooled gap or mass at different temperatures. Decreasing temperature enhances the stiffness of the interaction force between the superconductor and the permanent magnet. However, this effect is more significant at a smaller field cooled gap, indicating that the enhancement of stiffness and resonant frequency by lowering temperature also depends on the magnetic field gradient.
The effects of temperature on the dynamic characteristics of a high-T-c superconductor (HTS) and permanent magnet (PM) system at different field cooled (FC) gaps and different masses are studied theoretically and experimentally. Results indicate that the resonant frequency of the HTS-PM system decreases with increasing FC gap or mass at different temperatures. Although decreasing temperature augments stiffness of the interaction force between the HTS and the PM. The effect of decreasing temperature on stiffness and resonance frequency is more significant at a smaller FC gap. It means that the enhancement of lowering temperature on stiffness and resonant frequency also depends on the magnetic field gradient.
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