【摘要】 <正> 高性能稀土永磁材料的出现,使永久磁体获得了更为广泛而重要的应用。但是,这些材料的内禀矫顽力很高,在生产中,常常采用脉冲磁化技术使之实现充分磁化。本文的作者曾研制成功稀土永磁材料脉冲磁化系统,并在文[1]中,对无限长圆柱磁体,当计及磁滞特性时,在具有固定参数的单向脉冲磁化场中的状态,用数值方法进行了定量的分析,并获得了与实验一致的结果。更多还原

【Abstract】 The determination of the maximum diameter of REPM (Rear earthcobal permanent magnet) which can be fully magnetized in certain magnetizing system has been deduced to an inverse problem of the determination of unknown coefficent in a nonlinear parabolic equation. First, using the difference method, we convert the parablic equation into an ordinary differential equation which can be solved with numerical method. Then, we can solve the inverse problem with optimizarion method.更多还原