永久磁石間の磁気力の剛性に関する基礎的検討

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  • Fundamental Investigation on Stiffness of Magnetic Forces of Parmanent Magnets.
  • エイキュウ ジシャクカン ノ ジキリョク ノ ゴウセイ ニ カンスル キソテキ

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In this paper, mutual magnetic forces between two permanent magnets which have no pole piece or york are discussed using equivalent current sheets around the magnets are discussed and two important results are obtained. The first result is two decrease methods of unwanted horizontal or lateral unstable stiffness in case of vertical repulsion configurations. The second one deals with 45-degree direction stiffness, which is shown to be zero, using a wo parallel straight sheets model. At first, a very simple two parallel currents model is used. This simple model gives us very impotant insight into the magnetic forces. Yonnet's theorem about magnetic force stifiness is applied to two above-mentioned results, showing correcctness of the analyses. Finally, several numeric examples from published papers are shown.

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