正弦变化
In virtue of variation theory, boundary problem of magnetic field is changed into equivalent variable problem. Then the procedure of element analysis, discrete format and collective composition equation in sinusoidal and time-varying field are given.
从待解的磁场边值问题出发,利用变分原理将边值问题转化为等价的变分问题,给出了正弦时变场单元分析过程和离散格式以及最终的总体合成方程。
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