Design of a magnetic braking system

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Title:	Design of a magnetic braking system
Authors:	Jou, Min;Shiau, Jaw-Kuen;Sun, Chi-Chian
Contributors:	淡江大學航空太空工程學系
Keywords:	Permanent magnet;Magnetic braking;Finite element analysis
Date:	2009-09
Issue Date:	2013-03-20 16:26:10 (UTC+8)
Publisher:	Amsterdam: Elsevier BV * North-Holland
Abstract:	A non-contact method, using magnetic drag force principle, was proposed to design the braking systems to improve the shortcomings of the conventional braking systems. The extensive literature detailing all aspects of the magnetic braking is briefly reviewed, however little of this refers specifically to upright magnetic braking system, which is useful for industries. One of the major issues to design upright magnetic system is to find out the magnetic flux. The changing magnetic flux induces eddy currents in the conductor. These currents dissipate energy in the conductor and generate drag force to slow down the motion. Therefore, a finite element model is developed to analyze the phenomena of magnetic flux density when air gap and materials of track are varied. The verification shows the predicted magnetic flux is within acceptable range with the measured value. The results will facilitate the design of magnetic braking systems.
Relation:	Journal of Magnetism and Magnetic Materials 304(1), pp.E234-E236
DOI:	10.1016/j.jmmm.2006.01.149
Appears in Collections:	[Graduate Institute & Department of Aerospace Engineering] Journal Article

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