摘要
由于无法获得复杂系统中的并矢格林函数,积分方程法的适用范围受到很大限制。本文分析了时谐涡流问题中全空间和半空间并矢格林函数的作用范围,指出在大多数实际的涡流问题中都可以利用这两种并矢格林函数得到良好的近似。最后用一个探伤涡流问题的例子验证了本文结论。
The dyadic Green function is necessary for the integral equation method (IEM), which is an important method for solving the eddy current problems. Generally speaking, it is very difficult to obtain the dyadic Green functions for a complicated eddy current system. This has greatly limited the implement of IEM. In this paper, the properties of the dyadic Green function for the whole-space and half-space conductor are discussed. A useful conclusion has been drawn that these two dyadic Green functions can be used as good approximations for most practical eddy current problems. An eddy current testing problem is calculated to validate the conclusion.
出处
《电机与控制学报》
EI
CSCD
北大核心
2002年第2期128-131,共4页
Electric Machines and Control
基金
中国博士后科学基金资助项目
