[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5370/JEET.2015.10.3.1349

Analysis of Contact Force in Eddy-current System Using the Virtual Air-Gap Concept

Park, Byung Su (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Kim, Hwi Dae (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Choi, Hong Soon (Dept. of Electrical Engineering, Kyungpook University)
Park, Il Han (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)

Publication Information

Journal of Electrical Engineering and Technology / v.10, no.3, 2015 , pp. 1349-1355 More about this Journal

Abstract

It is difficult to calculate the magnetic force of an object of magnetic material in contact with other objects using the existing methods, such as Maxwell stress tensor method, magnetic charge method, or magnetizing current method. These methods are applicable for force computation only when the object is surrounded by air. The virtual air-gap concept has been proposed for calculating the contact force. However, its application is limited to magneto-static system. In this paper, we present the virtual air-gap concept for contact surface force in the eddy-current system. Its validity and usefulness are shown by comparison between numerical and experimental examples.

Keywords

Magnetic contact force; Maxwell stress tensor; Finite element analysis; Virtual air-gap;

Citations & Related Records

Reference

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