Paper Info
Title
Design of a highly reliable fan with magnetic bearings.
Abstract
Bearing failures are, according to long-term analyses at ebm-papst St. Georgen GmbH & Co. KG, responsible for 90% of all compact fan breakdowns. The working life of a fan can be increased considerably by using a magnetically levitated fan, where the impeller has no contact with the stator. This paper presents the design of a low-cost magnetically levitated fan with passive magnetic bearings (PMBs) to stabilise radial and tilt deflections of the rotor. The application of an optimised viscoelastic support to the stator introduces sufficient damping to the passively stabilised degrees of freedom. The optimisation of the stiffness and damping and the design of the key components, namely the PMB, the active magnetic bearing and the passive damping device is discussed. Finally, the built prototype is presented and the measurement results are analysed.
Year
DOI
Venue
2016
10.1177/0959651815602829
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING
Keywords
DocType
Volume
Magnetic bearings,magnetic levitation,permanent magnets,magnetically levitated fan,analytical modelling,physical modelling
Journal
230
Issue
ISSN
Citations 
SP4
0959-6518
2
PageRank 
References 
Authors
0.69
0
6
Name
Order
Citations
PageRank
Gerald Jungmayr121.03
Edmund Marth221.03
Martin Panholzer321.03
Wolfgang Amrhein4788.29
Frank Jeske520.69
Martin Reisinger620.69