在有限元软件COMSOL Multiphysics中构造出了YBCO带材的数值仿真模型,并重点对YBCO带材的交流损耗进了数值模拟.模型中以单根无限长YBCO带材为计算对象,以H-formulation作为求解方法,并将带材的非线性特性(E～J特性)和各向异性特性(B～J特性)作为模型的理论基础加载到模型中.之后利用仿真模型计算出不同幅值的交变电流激励下带材的交流损耗.同时,文章对YBCO带材的交流损耗进行了相同激励条件下的测试实验和基于Norris公式的理论计算,并将三者进行对比,结果显示三组数组基本吻合,证明所构建的仿真模型在计算带材交流损耗方面的可行性.
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