NDLI: Analysis and Design of Passive Magnetic Bearing and Damping System for High-Speed Compressor

Content Provider	IEEE Xplore Digital Library
Author	Jiancheng Fang Yun Le Jinji Sun Kun Wang
Copyright Year	1965
Abstract	To provide a more reliable and low power consumption rotor support system for a high-speed compressor, a novel and compact magnetic bearing and damping system is proposed. It is composed of a cup-shaped rotor, an axial passive bearing of reluctance type outside the rotor cup, and a passive damper with Halbach magnet array inside the rotor cup, which not only can provide adequate stiffness, but also good damping ability for the rotor. To enhance the load and stability of the system, an analytical model, which can calculate the system stiffness and damping coefficient with significantly less computing time than the finite element method (FEM), is established. The effects of some important structure parameters on the system performance are discussed. Then, an optimal design method is proposed based on the above analysis. At last, an experimental setup has been developed and both static and dynamic performances have been tested. The experimental results show that the proposed system is capable of producing high axial stiffness and effective in suppressing the rotor vibration. The results also verify the validity of the analysis and design method.
Sponsorship	IEEE Magnetics Society
Starting Page	2528
Ending Page	2537
Page Count	10
File Size	1848854
File Format	PDF
ISSN	00189464
Volume Number	48
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rotors Magnetic levitation Magnetomechanical effects Magnetic flux Damping Force Stators magnetic damper Compressors Halbach magnet array magnetic bearing
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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