单元级别并行有限元法求解工程涡流场的关键问题研究

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Abstract The element by element parallel finite element method(EBE-PFEM) has not been applied to engineering eddy current calculation till now. It is not easy to apply this efficient method directly due to the ill-conditioned system equations of engineering eddy current problems which consist of different conductive materials. This paper proposes a solution to the difficulty from both sides of the mathematical model and algorithm implementation. The modified magnetic vector potential and second order vector potential are adopted to simplify the mathematical model and improve the property of the system equations. The EBE-PFEM is introduced to reduce the large memory request and hardness of solution for eddy current analysis in large electrical equipments. Furthermore, the implementation process of EBE-PFEM on graphic processing units(GPU) is given.

Key words： Element by element method(EBE) graphic processing units(GPU) 3D eddy current field second order vector potential parallel computing

Received: 01 August 2013 Published: 05 November 2014

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TM153

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	Tang Renyuan
	Wu Dongyang
	Xie Dexin

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Tang Renyuan,Wu Dongyang,Xie Dexin. Research on the Key Problem of Element by Element Parallel FEM Applied to Engineering Eddy Current Analysis[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 1-8.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I5/1

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