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Actuators 2017, 6(1), 11;

The Proposal of Magnetic Suspension using Laterally Control Flux-Path Mechanism

Saitama University Graduate School of Sience and Engineering Control Engineering Laboratory, 338-8570 Saitama, Japan
Author to whom correspondence should be addressed.
Received: 30 November 2016 / Revised: 15 March 2017 / Accepted: 17 March 2017 / Published: 21 March 2017
(This article belongs to the Special Issue Active Magnetic Bearing Actuators)
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A novel flux control magnetic suspension system that places control plates beside the magnetic source (permanent magnet) is proposed. In a conventional flux-path control magnetic suspension system, the control plates were inserted between the magnetic source and the suspended object (floator). In contrast, the control plates were placed beside the magnetic source in the proposed system. In such a configuration, the effective gap becomes larger than in the conventional system. Basic characteristics of the proposed magnetic suspension system were studied both numerically and experimentally. The numerical analyses show that the attractive force acting on the floator increases as the position of the lateral ring-shape control plate increases. The variation of the attractive force is sufficient for the stabilization of the suspension system. It is also shown that lateral force can be generated by dividing the plates into halves and moving them differentially. The predicted characteristics are confirmed experimentally in a fabricated apparatus with a three-axis force sensor and a gap adjustment mechanism. View Full-Text
Keywords: magnetic suspension; permanent magnet; flux control plate magnetic suspension; permanent magnet; flux control plate

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Ishibashi, N.; Mizuno, T.; Ishino, Y.; Yamaguchi, D.; Hara, M.; Takasaki, M.; Yamada, K. The Proposal of Magnetic Suspension using Laterally Control Flux-Path Mechanism. Actuators 2017, 6, 11.

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