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Revolving magnet wheels with permanent magnets
Author(s) -
Fujii Nobuo,
Ogawa Kokichi,
Matsumoto Toshio
Publication year - 1996
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391160110
Subject(s) - magnet , electropermanent magnet , thrust , conductor , mechanical engineering , lift (data mining) , actuator , torque , magnetic flux , tilt (camera) , physics , electrical engineering , magnetic field , mechanics , materials science , permanent magnet synchronous generator , engineering , computer science , quantum mechanics , data mining , composite material , thermodynamics
A new type of actuator with both magnetic levitation and linear drive is proposed. The actuator, called magnet wheel, has a rotating magnetic field obtained by revolving permanent magnets with high coercivity mechanically. The induction repulsive‐type magnetic lift force with self‐stabilization can be obtained by linking the rotating flux to a conducting plate. The induced simultaneous drag torque, which causes power loss, is used to obtain thrust in two proposed ways. These are called “tilt type” and “partial overlap type,” respectively. In the tilt type, the magnet wheel is tilted against the surface of a conducting plate. In the partial overlap type, the magnet wheel operates near the edge of a conducting plate. In this paper, the fundamentals of the structure of proposed magnet wheels are described. The basic characteristics at parallel to the conductor are shown by using a numerical three‐dimensional electromagnetic analysis and measured results. The generation of both lift force and thrust in tilt type and partial overlap type magnet wheel are proved by experiments, respectively.