Vibration of a Vertical Rigid Rotor Supported by a Repulsive Magnetic Bearing Influences of Magnetical Anisotropicities of Inner and Outer Magnets

Vibrations of a rotor supported by a repulsive type passive magnetic bearing is investigated. First, the restoring force of a repulsive type magnetic bearing is calculated numerically considering the influences of magnetical anisotropicities of the inner and outer magnets. Then, this obtained restor...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 72; no. 716; pp. 1079 - 1086
Main Authors INOUE, Tsuyoshi, SHIDA, Yukio, TSUMURA, Takeshi
Format Journal Article
LanguageEnglish
Japanese
Published The Japan Society of Mechanical Engineers 2006
Subjects
Nonlinear Vibration
Parmanent Magnet
Repulsive-type Magnetic Bearing
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Summary:Vibrations of a rotor supported by a repulsive type passive magnetic bearing is investigated. First, the restoring force of a repulsive type magnetic bearing is calculated numerically considering the influences of magnetical anisotropicities of the inner and outer magnets. Then, this obtained restoring force is appoximated by the power series expression considering the effect of the rotation of inner magnet. The effect of each pattern of magnetical anisotropicities of inner and outer magnets on the occurence of resonance phenomenon is clarified theoretically and experimentally.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.72.1079