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兵工学报 ›› 2007, Vol. 28 ›› Issue (6): 709-713.

• 论文 • 上一篇    下一篇

旋转超导球体在均匀磁场中的カ矩分析

何川1,王秋良2   

  1. 1.中国科学院研究生院,北京100039;2.中国科学院电工研究所,北京100080
  • 收稿日期:2006-04-17 上线日期:2014-12-25
  • 通讯作者: 何川

Analysis on Magnetic Torque of Superconducting Sphere with High Rotating Speed m Uniform Magnetic Field

HE Chuan1, WANG Qiu-Iiang2   

  1. 1. Institute of Graduate, Chinese Academy of Science, Beijing 100039, China; 2. Institute of Electrical Engineering, Chinese Academy of Science, Beijing 100080, China
  • Received:2006-04-17 Online:2014-12-25
  • Contact: HE Chuan

摘要: 基于经典的电磁场理论和伦敦方程,为在均匀磁场中高速旋转的超导球体所受力矩的计算建立了理论分析模型。该计算方法考虑了高速旋转的超导球体产生的伦敦磁矩与外磁场的相互影响,并把磁感应强度在超导球体的球坐标系中利用球谐函数展开,利用超导球体的边界条件最后推导出力矩的计算方法。同时给出了具体的分析实例。力矩计算模型的建立为进一步研究在磁场中高速旋转的超导球体的动力学特性有着重要的意义。

关键词: 电磁学 , 超导球体 , 旋转 , 力矩 , 伦敦磁矩

Abstract: On the basis of the classic electromagnetic field theory and London equations, a calculation model was founded for the magnetic torque of a superconducting sphere with high rotating speed in a uniform magnetic field. By taking account of the interaction of the London moment produced by the rotating superconducting sphere with tne applied magnetic neia, calculation method of the magnetic torque was derived from the magnetic induction expressed in terms of spherical harmonic functions and the boundary condition of superconducting sphere. In addition, a calculating example is shown. The theoretical model for toque calculation is valuable for the farther research on the dynamic behavior of superconducting sphere with high rotating speed.

Key words: electromagnetics , superconducting sphere , rotating , torque , London magnetic moment

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