Title
Optimization and realization of a multi-pole permanent magnetic bearing with rotating magnetization.
Abstract
The focus of this paper is on optimizing the stiffness of a permanent magnetic single-ring bearing solely by changing the magnetization pattern. More precisely, using rotating magnetization with two magnetic poles rather than homogeneous magnetization results in a 3.7-fold improvement in stiffness. Usually, rotating magnetization is realized by Halbach stacking, that is, stacking several homogeneously magnetized rings with different directions of magnetization. The approach followed in this work realizes a continuously rotating magnetization pattern using only one ring. Optimization of the magnetization process, as presented in this paper, is crucial to achieving the maximum possible stiffness for the specified bearing dimensions. Furthermore, an analytical stiffness calculation method for bearings with arbitrary magnetization pattern is introduced, and the results are compared with finite-element calculations and measurements.
Year
DOI
Venue
2016
10.1177/0959651815594081
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING
Keywords
DocType
Volume
Permanent magnetic bearings,optimization,stiffness calculation,Halbach
Journal
230.0
Issue
ISSN
Citations 
SP4
0959-6518
0
PageRank 
References 
Authors
0.34
1
4
Name
Order
Citations
PageRank
Edmund Marth121.03
Gerald Jungmayr221.03
Martin Panholzer321.03
Wolfgang Amrhein4788.29