Single-structured hybrid gas-magnetic bearing and its rotordynamic performance

被引：5

作者：

Liu, Qing ^{[1
]}

Wang, Li ^{[1
]}

Li, Yuanyuan ^{[2
]}

Lei, Gang ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China

[2] Beijing Satellite Mfg Factory, 104 Youyi Rd, Beijing 100094, Peoples R China

[3] State Key Lab Technol Space Cryogen Propellants, Beijing 100028, Peoples R China

来源：

NONLINEAR DYNAMICS | 2021年 / 104卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Single-structured hybrid gas-magnetic bearing; Nonlinear transient analysis; Dynamic orbit; Sub-synchronous vibration; SPEED; SYSTEM; TURBOEXPANDERS; STABILITY;

D O I：

10.1007/s11071-021-06295-5

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This work proposes a novel hybrid gas-magnetic bearing (HGMB) which has single bearing structure. The gas bearing and the active magnetic bearing (AMB) share the same airgap, and the closed magnetic poles are taken as the bushing of the gas bearing. Controllable electromagnetic forces are applied to adjust system dynamic characteristics. Numerical results demonstrate better rotating accuracy, suppressed sub-synchronous vibration, lower energy consumption compared with rigid gas bearings and AMB, and less air friction losses than conventional HGMBs, indicating the suitability of the proposed bearing for cryogenic turbomachinery.

引用

页码：333 / 348

页数：16

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