Analysis of contact force in eddy-current system using the virtual air-gap concept

Byung Su Park; Hwi Dae Kim; Hong Soon Choi; Il Han Park

doi:10.5370/JEET.2015.10.3.1349

Analysis of contact force in eddy-current system using the virtual air-gap concept

Byung Su Park, Hwi Dae Kim, Hong Soon Choi, Il Han Park

Department of Electrical Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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.

Original language	English
Pages (from-to)	1349-1355
Number of pages	7
Journal	Journal of Electrical Engineering and Technology
Volume	10
Issue number	3
DOIs	https://doi.org/10.5370/JEET.2015.10.3.1349
State	Published - 1 May 2015

Keywords

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

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10.5370/JEET.2015.10.3.1349

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title = "Analysis of contact force in eddy-current system using the virtual air-gap concept",

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 = "Finite element analysis, Magnetic contact force, Maxwell stress tensor, Virtual air-gap",

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AU - Kim, Hwi Dae

AU - Choi, Hong Soon

AU - Park, Il Han

N1 - Publisher Copyright: © The Korean Institute of Electrical Engineers.

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Y1 - 2015/5/1

N2 - 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.

AB - 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.

KW - Finite element analysis

KW - Magnetic contact force

KW - Maxwell stress tensor

KW - Virtual air-gap

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ER -

Analysis of contact force in eddy-current system using the virtual air-gap concept

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