Open AccessThe Redundant Design and Reliability Analysis of Magnetic Bearings Used for Aeroengine
Author(s) -
Wang Xiaoguang,
Liu Qian,
Hu Yefa,
Cheng Xin,
Chen Haohui,
Huang Longfei
Publication year - 2014
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
ISSN - 1687-8132
DOI - 10.1155/2014/157461
Subject(s) - magnetic bearing , redundancy (engineering) , coupling (piping) , reliability (semiconductor) , bearing (navigation) , finite element method , structural engineering , engineering , control theory (sociology) , mechanical engineering , computer science , reliability engineering , physics , control (management) , magnet , power (physics) , quantum mechanics , artificial intelligence
The redundant design principle of weak coupling magnetic bearing system for aeroengine is put forward. A redundant design scheme of weak coupling magnetic bearing system is provided including radial and axial magnetic bearings and their control system. The performance of the weak coupling redundant magnetic bearing is analyzed with the finite element method and then compared with the strong coupling redundant magnetic bearing. The weak coupling redundant magnetic bearing has some advantages in both redundancy and load bearing capacity under the circumstance of either no failure or partial failure in the coils. In view of the increase in the number of electronic components in the control system, both reliability and redundancy are evaluated comprehensively. A compromise solution of 12-pole structure for the weak coupling redundant magnetic bearing is recommended.
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