When the electromagnetic field of electric motor is calculated by FEM, with the continuous motion of rotor, a large amount of computation need to be done. The difficulty of rotor motion is due to FEM mesh. The problem of distortion of mesh could besolved by EFG method, which doesn’t have FEM mesh. The coupling of EFG and FEM could eliminate the influence of mesh distortion. In order to deal with the relative motion between the stator and rotor, the paper presents a coupling method of element-free Galerkin method and finite element method(EFG-FE). The coupling method is based on overlapping domain decomposition method(DDM). The tests show that the solutions are accurate. The method is used in electromagnetic field of motor and could eliminate the errors due to distortion of elements on FE method.
王立鹏, 王欣彦, 战洪仁, 寇丽萍, 唐任远. 基于区域分解的EFG-FE耦合法及其在电机运动问题的应用[J]. 电工技术学报, 2012, 27(12): 7-12.
Wang Lipeng, Wang Xinyan, Zhan hongren, Kou Liping, Tang Renyuan. EFG-FE Coupling Method Based on DDM and Its Application on Motor Motion. Transactions of China Electrotechnical Society, 2012, 27(12): 7-12.
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