期刊文献+

Vibrations in Magnet/Superconductor Levitation Systems 被引量:2

Vibrations in Magnet/Superconductor Levitation Systems
下载PDF
导出
摘要 The problem of a small magnet levitating above a very thin superconducting disc in the Meissner state is analysed. The dipole-dipole interaction model is employed to derive analytical expressions for the interaction energy, levitation force, magnetic stiffness and frequency of small vibrations about the equilibrium position in two different configurations, i.e. with the magnetic moment parallel and perpendicular to the superconductor. The results show that the frequency of small vibrations decreases with the increasing levitation height for a particular radius of the superconducting disc, which is in good agreement with the experimental results. However, the frequency increases monotonically up to saturation by increasing the radius of the disc for a particular height of the magnet. In addition, the frequency of vibrations is higher when the system is in the vertical configuration than that when the system is in the horizontal configuration. The problem of a small magnet levitating above a very thin superconducting disc in the Meissner state is analysed. The dipole-dipole interaction model is employed to derive analytical expressions for the interaction energy, levitation force, magnetic stiffness and frequency of small vibrations about the equilibrium position in two different configurations, i.e. with the magnetic moment parallel and perpendicular to the superconductor. The results show that the frequency of small vibrations decreases with the increasing levitation height for a particular radius of the superconducting disc, which is in good agreement with the experimental results. However, the frequency increases monotonically up to saturation by increasing the radius of the disc for a particular height of the magnet. In addition, the frequency of vibrations is higher when the system is in the vertical configuration than that when the system is in the horizontal configuration.
出处 《Chinese Physics Letters》 SCIE CAS CSCD 2006年第6期1641-1644,共4页 中国物理快报(英文版)
关键词 MEISSNER STATE SMALL MAGNET FORCE STIFFNESS SUPERCONDUCTORS SIZE MEISSNER STATE SMALL MAGNET FORCE STIFFNESS SUPERCONDUCTORS SIZE
  • 相关文献

参考文献10

  • 1Davis L C, Logothetis E M and Soltis R E 1988 J. Appl. Phys. 64 4212.
  • 2Chang P Z, Moon F C, Hull J R and Mulcahy T M 1990 J. Appl. Phys. 67 4358.
  • 3Hull J R, Mulcahy T M, Salama K, Selvamanickam V, Weinberger B R and Lynds L 1992 J. Appl. Phys. 72 2089.
  • 4Hull J R and Cansiz A 1999 J. Appl. Phys. 86 6396.
  • 5Yang Z J and Hull J R 1996 J. Appl. Phys. 79 3318.
  • 6Cansiz A 2003 Physica C 390 356.
  • 7Yang Z J, Johansen T H, Bratsberg H, Helgesen G and Skjeltorp A T 1989 Physica C 160 461.
  • 8Alzoubi F Y, Al-Khateeb H M, Alqadi M K and Ayoub N Y 2005 Supercond. Sci. Technol. 18 1329.
  • 9Alzoubi F Y 2006 Supercond. Sci. Technol. 18 1329.
  • 10Lugo J and Sosa V 1999 Physica C 324 9.

同被引文献8

引证文献2

二级引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部