Volume 6 Issue 2
Apr.  2017
Article Contents

Yong Zhang, Ya-Li Zhang, Cui-Hua Cheng, Yong Zhao. Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field[J]. Journal of Electronic Science and Technology, 2008, 6(2): 181-184.
Citation: Yong Zhang, Ya-Li Zhang, Cui-Hua Cheng, Yong Zhao. Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field[J]. Journal of Electronic Science and Technology, 2008, 6(2): 181-184.

Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field

Funds:

This work was supported by the National Science Foundation of China under Grant No. 50372052, 50588201, the National Basic Research Program of China under Grant No. 2007CB616906, the Program for Changjiang Scholars and Innovative Research Team in University, and Australian Research Council under Grant No. DP0559872, DP0881739.

More Information
  • Author Bio:

    Yong Zhang research interests include the processing and applications of superconducting material, yongzhang@home.swjtu.edu.cn;
    Yong Zhao, y.zhao@unsw.edu.au

    Yong Zhang research interests include the processing and applications of superconducting material, yongzhang@home.swjtu.edu.cn;
    Yong Zhao, y.zhao@unsw.edu.au

  • Received Date: 2008-01-16
  • Rev Recd Date: 2008-02-21
  • Publish Date: 2008-06-25

通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field

Funds:

This work was supported by the National Science Foundation of China under Grant No. 50372052, 50588201, the National Basic Research Program of China under Grant No. 2007CB616906, the Program for Changjiang Scholars and Innovative Research Team in University, and Australian Research Council under Grant No. DP0559872, DP0881739.

  • Author Bio:

Abstract: The effect of the moving speed of permanent magnet (PM) on levitation force between PM and high temperature superconducting (HTS) bulk is analyzed and described in the PM-HTS levitation system. The PM vibration characteristic in the PM-HTS system is investigated. The PM may collide with the HTS in vibration if the amplitude and frequency of driving force satisfy the relationship Pmin=Afn. When the load of the system is below a threshold, the minimal collision amplitude of the driving force increases with the load increasing, however, it sharply drops to zero when the load exceeds the threshold. With the increase of the initial height of the PM, the threshold load increases, but the minimal driving force which causes a collision between PM and HTS decreases.

Yong Zhang, Ya-Li Zhang, Cui-Hua Cheng, Yong Zhao. Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field[J]. Journal of Electronic Science and Technology, 2008, 6(2): 181-184.
Citation: Yong Zhang, Ya-Li Zhang, Cui-Hua Cheng, Yong Zhao. Analysis of Vertical Oscillations of a Permanent Magnet Freely Levitated above an YBCO Bulk in an AC External Magnetic Field[J]. Journal of Electronic Science and Technology, 2008, 6(2): 181-184.

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