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Abstract <p>The results of modeling and calculating the magnetic-field parameters of an E-shaped alternating-current electromagnet in the FEMM 4.2 and COMSOL Multiphysics finite-element analysis programs are presented. A mathematical model for calculating the field using the finite-element method is described. The topographic and zonal patterns of the electromagnetic field are constructed in the environment of the FEMM 4.2 physical-field analysis program. The built-in tools of the postprocessor of the software environment are used to integrate over the Maxwell tension tensor, and electromagnetic forces are determined when changing the width of the working gap. The traction characteristic of the electromagnet under study is constructed for a single moment in time. The optimal numbers of finite-element nodes in the circuit for efficient modeling are determined. In the environment of the COMSOL Multiphysics program, a zonal pattern of magnetic-induction distribution over the cross section of the E-shaped electromagnet, time dependences of fluxes, and electromagnetic forces in the shielded and unshielded parts of the magnetic circuit are determined. The correct functioning of the electromagnetic device under study is confirmed based on the requirement of no armature vibration. Conclusions are made regarding the application of finite-element analysis programs in the design of ac electromagnets.</p>

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An Investigation of the Magnetic Field of an E-Shaped AC Electromagnet in Finite-Element Analysis Programs

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • V. A. Zakharov,
  • N. V. Russova,
  • N. A. Galanina,
  • S. P. Ivanova,
  • V. V. Arkadiev

摘要

Abstract

The results of modeling and calculating the magnetic-field parameters of an E-shaped alternating-current electromagnet in the FEMM 4.2 and COMSOL Multiphysics finite-element analysis programs are presented. A mathematical model for calculating the field using the finite-element method is described. The topographic and zonal patterns of the electromagnetic field are constructed in the environment of the FEMM 4.2 physical-field analysis program. The built-in tools of the postprocessor of the software environment are used to integrate over the Maxwell tension tensor, and electromagnetic forces are determined when changing the width of the working gap. The traction characteristic of the electromagnet under study is constructed for a single moment in time. The optimal numbers of finite-element nodes in the circuit for efficient modeling are determined. In the environment of the COMSOL Multiphysics program, a zonal pattern of magnetic-induction distribution over the cross section of the E-shaped electromagnet, time dependences of fluxes, and electromagnetic forces in the shielded and unshielded parts of the magnetic circuit are determined. The correct functioning of the electromagnetic device under study is confirmed based on the requirement of no armature vibration. Conclusions are made regarding the application of finite-element analysis programs in the design of ac electromagnets.