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Abstract <p>The study discusses determination of the magnitude and description of the topography of demagnetizing fields for permanent magnets made of rare-earth chemical elements. To describe the magnetic field strength of a magnet, the fields of a permanent magnet are calculated using the equivalent solenoid method. Dimensionless criteria of optimal sizes for magnets of different shapes, such that ensure a given bearing capacity or rigidity of bearings with minimal costs of the magnetically hard material, are determined.</p>

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Rational Selection of Permanent Magnets for Magnetic Bearings Based on Demagnetizing Fields

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • A. N. Bolotov,
  • O. O. Novikova

摘要

Abstract

The study discusses determination of the magnitude and description of the topography of demagnetizing fields for permanent magnets made of rare-earth chemical elements. To describe the magnetic field strength of a magnet, the fields of a permanent magnet are calculated using the equivalent solenoid method. Dimensionless criteria of optimal sizes for magnets of different shapes, such that ensure a given bearing capacity or rigidity of bearings with minimal costs of the magnetically hard material, are determined.