NDLI: A FEM-based method dynamic analysis of a thrust magnetic bearing with permanent magnet bias

Content Provider	IEEE Xplore Digital Library
Author	Bangcheng Han Shiqiang Zheng Yingguang Wang Junchao Cheng
Copyright Year	2012
Description	Author affiliation: Science and Technology on Inertial Laboratory, Beijing, China (Bangcheng Han; Shiqiang Zheng; Yingguang Wang; Junchao Cheng)
Abstract	Active magnetic bearings (AMB) are well-known components for the suspension of mechanical objects. The hybrid thrust magnetic bearing (HTMB) with permanent magnet creating bias flux and subsidiary air gap in this paper is used to save energy, and two opposing electromagnetic poles allow control forces in two directions and take account of linearizing effects. The flux distribution is affected by the control voltage and the permanent magnets for the HTMB. Accurate analysis and efficient optimal design are essential to avoid costly trials. The dynamic performances of the HTMB with subsidiary air gap are analyzed. The flux distribution at different time in the HTMB is shown, and the time variation of the magnetic force, the displacement of the thrust plane, the speed of the thrust plane are given respectively in case the voltages are 15V, 20V, and 28V. The inductance of the thrust magnetic bearing is calculated for each position. The described method can simulate the dynamic behavior of the AMB with permanent magnets. It enables design optimization of sophisticated AMBs by extensive parameter studies.
Starting Page	281
Ending Page	285
File Size	968064
Page Count	5
File Format	PDF
ISBN	9781467326155
e-ISBN	9781467326179
DOI	10.1109/ISICT.2012.6291621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-11
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dynamic response Magnetic flux Flux density Force Magnetic circuit Stators Thrust magnetic bearing with permanent magnets Finite element method(FEM) Permanent magnets Finite element methods Magnetic circuits Magnetic levitation
Content Type	Text
Resource Type	Article

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