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http://dx.doi.org/10.5302/J.ICROS.2013.13.1881

Non-Contact Manipulation of Conductive Rod using Axial Magnet Wheels  

Jung, Kwang-Suk (Department of Mechanical Engineering, Korea National University of Transportation)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.19, no.7, 2013 , pp. 626-632 More about this Journal
Abstract
When a conductive rod is put within rotating axial magnet wheels arranged parallel, three-axial magnetic forces generate on the rod. In some region, the forces has a property of negative stiffness, thus they can be applied to noncontact conveyance of the rod without a control load. Apart from the passive driving, the magnet wheel should be controlled for the rod to be stayed at the still state or be moved in a specified velocity. But, because a control input is just the rotating speed of the magnet wheel, the number of input is less than that of variables to be controlled. It means that levitation force and thrust force increase at the same time for increasing wheel speed, resulting from a strong couple between two forces. Thus, in this paper, a novel method, in which the longitudinal motion of the rod is controlled indirectly by the normal motion of the rod with respect to the wheel center, is introduced to manipulate the rod without mechanical contact on space.
Keywords
electrodynamic analysis; magnet wheel; non-contact conveyance; stability analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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