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Hybrid gas-magnetic bearings: An overview

Qing Liu, Shiping Zhang, […], Yuanyuan Li, Gang Lei, and Li Wang [email protected]+2View all authors and affiliations

Volume 66, Issue 2

https://doi.org/10.3233/JAE-201579

Abstract
Nomenclature
References

Abstract

This paper presents a state-of-the-art survey on the development of the hybrid gas-magnetic bearing (HGMB) technology. HGMBs are proposed to complement the advantages of gas bearings and magnetic bearings for enhanced bearing performance. Nevertheless, there are a number of inherent challenges in their designs, analyses, and performance characteristics that must be taken into account for proper functionality and reliable operation. For this purpose, substantial results in theory, numerical simulations, and experiments concerning rotor dynamics, mechanical structures, control systems, and operation modes are discussed to help further investigation and implementation of HGMBs. In addition, future developments of HGMBs in industries and remaining challenges are discussed.

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Nomenclature

HGMB: hybrid gas-magnetic bearing
HFMB: hybrid foil-magnetic bearing
AMB: active magnetic bearing
PMB: permanent magnetic bearing
HMB: hybrid magnetic bearing
EA: electromagnetic actuator
PD: proportional-derivative
ASB: aerostatic bearing
ADB: aerodynamic bearing
AFB: air foil bearing
GFB: gas foil bearing
HDB: hydrodynamic bearing
DN: D is diameter in mm and N speed in rpm
PID: proportional-integral-derivative

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