基于绘图法基本原理，以及YBCO高温超导带材的临界电流特性，采用有限元电磁场分析软件AnsoftMaxwell建立了空心圆柱磁体模型．根据磁场分布、并考虑到带材的临界电流密度随磁场大小和方向的变化关系，给出了影响磁体工作电流特性的磁场的分布．基于以上工作提出了一种利用Ansoft电磁场分析软件快速确定YBCO高温超导带材临界电流密度的方法．
Based on the basic principles of cartography and the critical current characteristics of the YBCO hightemperature superconducting tapes, this paper sets up a model of the hollow cylinder magnet by Ansoft Maxwell which is a software of analyzing the finite element electromagnetic field. According to the magnetic field distribution and the relationship between the critical current density of the tapes and the value and direction of the magnetic field, this paper provides the distribution of the magnetic field which affects the current characteristic of the magnet. Based on the above work, this paper puts forward a method of confirming the critical current density of the YBCO high- temperature superconducting magnet rapidly with Ansoft.
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