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Actuators 2018, 7(3), 54; https://doi.org/10.3390/act7030054

Effect of Optimal Placement of Permanent Magnets on the Electromagnetic Force in the Horizontal Direction

1
Course of Mechanical Engineering, Tokai University, Kitakaname 4-4-1, Hiratsuka-shi, Kanagawa 259-1292, Japan
2
Department of Prime Mover Engineering, Tokai University, Kitakaname 4-4-1, Hiratsuka-shi, Kanagawa 259-1292, Japan
*
Author to whom correspondence should be addressed.
Received: 15 June 2018 / Revised: 3 August 2018 / Accepted: 24 August 2018 / Published: 29 August 2018
(This article belongs to the Special Issue Modeling Smart Actuators and Their Applications)
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Abstract

The surface quality of steel plates is deteriorated as they contact rollers while being conveyed during manufacturing processes. To solve this problem, we previously proposed a hybrid electromagnetic levitation system comprising electromagnets, permanent magnets, and a horizontal positioning control system for steel plates. Moreover, to increase stability, we proposed integrating these levitation systems. In this study, we aim to determine the optimal placement of permanent magnets in the levitation system to suppress the deflection of a levitated steel plate for cases where the magnetic field in the horizontal direction changes. Using a genetic algorithm, the optimal gap, number, and placement of permanent magnets in the system are obtained. View Full-Text
Keywords: magnetic levitation; genetic algorithm; permanent magnet magnetic levitation; genetic algorithm; permanent magnet
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ito, Y.; Oda, Y.; Narita, T.; Kato, H. Effect of Optimal Placement of Permanent Magnets on the Electromagnetic Force in the Horizontal Direction. Actuators 2018, 7, 54.

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