230 電動機の電磁音解析技術とその適用に関する研究(一般 : 機器・プラントの静粛化)

概要

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This paper presents analyzing method of an electromagnetic-force-induced noise from a motor and its application for a real machine. In analyzing method, an effective interface program, which is able to transform electromagnetic force stress by 2-dimensional analysis into three-dimensional mechanical exciting force, is introduced. The mechanical exciting force is an external force in the structural-vibrations analysis. In the magnetic field, finite element method is used, in the structural-vibration analysis, the finite element method is used ; and in the noise analysis, the boundary element method is used. With introducing high precision vibrating model, vibration and noise from a motor is calculated by the method in practical precision. Furthermore, a new the-space-modal resonance criteria i. e. SMORC which relates electromagnetic force to structural-vibration or noise is introduced and discussed on its effectiveness. Finally, the relationship between SMORC value and vibration or noise is discussed.
一般社団法人日本機械学会の論文
2001-06-05