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http://dx.doi.org/10.9726/kspse.2012.16.3.064

Mathematical Modeling about Magnetic Attractive Force of Magnetic Bearing  

Choi, G.H. (Department of Marine Police and Technology, GangWon Provincial College)
Yang, J.H. (Department of Mechanical System Engineering, Pukyong National University)
Choung, K.G. (Korea Ship Safety Technology Authority)
Publication Information
Journal of Power System Engineering / v.16, no.3, 2012 , pp. 64-68 More about this Journal
Abstract
Because the magnetic bearing supports levitating body without contact, wear, noise and vibration are very small comparing with mechanical bearings, it is very useful to high revolution machinery. In general, the magnetic attractive force function that is proportional to square of control current(x), and inversely proportional to square of an air gap(i) has been widely used. This paper proposed the new magnetic attractive force function that is proportional to cube of the control current, and inversely proportional to square of the air gap. The function was optimized to minimize the cost function that is the percentage of deviation about the change of a proportional constant(k), using the experimental data, ie, control currents and air gaps.
Keywords
Magnetic Bearing; Magnetic Attractive Force; Mathematical Modeling; Percentage of Deviation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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