基于六面体单元表面磁场积分法求解三维静磁场

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Abstract Magentostatic field calculation method is widely used in many areas, such as analyzing magnetic field characteristics of ferromagnetic objects. According to the magnetization property of uniformly magnetized body, an improved surface integral magentostatic field calculation method is presented in this paper. Compared with the volume integral method, the surface integral method is simpler in computation and the integral singularity is eliminated. Irregular hexahedron is used to mesh the complex ferromagnetic objects because of its flexibility. In order to eliminate the errors caused by numerical integration, the analytical formulas of the hexahedral coupling coefficient are deduced. Based on the above analysis, 3D magnetostatic field computation method with hexahedral surface integral is provided. Finally, two examples, a hollow ferromagnetic sphere and a hollow ferromagnetic cylinder in geomagnetic field, are given to verify its efficiency and accuracy. The results of the two examples are satisfying and the proposed method could be applied in the practical engineering.

Key words： Hexahedron 3D magnetostatic field computation integral equation method ferromagnetic object

Received: 17 December 2007 Published: 12 February 2014

PACS:

TM153

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	Articles by authors
	Zhou Guohua
	Xiao Changhan
	Liu Shengdao
	Gao Junji

Cite this article:

Zhou Guohua,Xiao Changhan,Liu Shengdao等. 3D Magnetostatic Field Computation With Hexahedral Surface Integral Equation Method[J]. Transactions of China Electrotechnical Society, 2009, 24(3): 1-7.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I3/1

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