Extended Finite-Element Method for Electric Field Analysis of Insulating Plate With Crack

被引：6
|
作者：
Wang, Guolin [1 ]
Wang, Shuhong [1 ]
Duan, Nana [1 ]
Huangfu, Youpeng [1 ]
Zhang, Haijun [1 ]
Xu, Weijie [1 ]
Qiu, Jie [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Sch Elect Engn, Xian 710049, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Crack; electric field; extended finite-element method (XFEM); insulating materials;
D O I：
10.1109/TMAG.2014.2360921
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, the extended finite-element method (XFEM) is employed to analyze electric field of insulating plate with crack. To begin with, both the approximation of XFEM and features of the enrichment functions for crack tip are presented. Then, XFEM is used to solve electric potential of an insulating plate with a middle crack, which proves the method can save computational time by comparison with classic finite-element method (CFEM) under the same computational accuracy. In addition, XFEM is also applied to calculate electrical field at crack tip of an insulating plate with an edge crack, which reveals that the relative error between XFEM and CFEM is small when the meshing size of CFEM around crack tip is smaller than that of XFEM. Therefore, electric field analysis of discontinuous and singular solutions can demonstrate the superior performance of XFEM.
引用
收藏
页数：4
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