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Levitation Force Relaxation of HTS YBCO Bulk under Load

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Abstract

The loading capacity of the high temperature superconducting (HTS) maglev vehicle is closely relative to the maglev characteristics of the HTS bulk under the load. The investigation of the characteristics is necessary for the application of the HTS maglev vehicle. In our previous work, it was found that the levitation force relaxation increased with the increase of the reloading. In this paper, in terms of a HTS maglev system composed of the permanent magnetic guideway (PMG) and a HTS YBCO bulk, the levitation force relaxation under different loads is investigated by the numerical calculation and the experiment. It is found that the normalized relaxation rate of the levitation force increased with the increase of the load. The influence of the load on the current density distribution is also discussed in this paper. This work might be helpful for the research of the loading capacity of the HTS maglev vehicle.

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Authors and Affiliations

  1. Applied Superconductivity Laboratory, Southwest Jiaotong University, P.O.Box 152, Chengdu, Sichuan, 610031, People’s Republic of China

    Qingyong He, Jiasu Wang & Suyu Wang

Authors
  1. Qingyong He
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  2. Jiasu Wang
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  3. Suyu Wang
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Correspondence to Qingyong He.

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He, Q., Wang, J. & Wang, S. Levitation Force Relaxation of HTS YBCO Bulk under Load. J Supercond Nov Magn 22, 409–415 (2009). https://doi.org/10.1007/s10948-008-0411-3

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  • DOI: https://doi.org/10.1007/s10948-008-0411-3

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