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A novel hybrid FEM-BEM method for 3D eddy current field calculation using current density kJ

  • Liu Zhizhen 
  • Wang Yanzhang 
  • Jia Zhiping 
  • Sun Yingming 
Article
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Abstract

This paper introduces a novel hybrid FEM-BEM method for calculating 3D eddy current field. In the eddy current region, the eddy current density J is solved by the finite element method (FEM) which is discretized by brick finite element mesh, while in the eddy current free region, the magnetic field intensity H is solved by the boundary element method (BEM) which is discretized by rectangular boundary element mesh. Under the boundary conditions, an algebraic equation group is obtained that only includes J by eliminating H. This method has many advantages over traditional ones, such as fewer variables, more convenient coupling between the FEM and the BEM and wider application to multiply-connected regions. The calculated values of two models are in good agreement with experimental results. This shows the validity of our method.

Keywords

conductor eddy current density magnetic field intensity 3D eddy current field FEM BEM coupling 

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Copyright information

© Science in China Press 2003

Authors and Affiliations

  • Liu Zhizhen 
    • 1
  • Wang Yanzhang 
    • 2
  • Jia Zhiping 
    • 3
  • Sun Yingming 
    • 4
  1. 1.School of Electrical EngineeringShandong UniversityJinanChina
  2. 2.Department of Science and TechnologyShandong UniversityJinanChina
  3. 3.School of Computer Science and TechnologyShandong UniversityJinanChina
  4. 4.Center of ComputerJinan UniversityJinanChina

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