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1530 振 动 工 程 学 报 第 39 卷
2.28×10 和 4 2.22×10 r/min。其中,当安装的不平衡质 分析的解析-CFD 混合方法 [J]. 机械工程学报,2018,
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量为 120 mg 时,未观察到明显的次同步振动出现。 54(11):180-186.
LI Yifei, YIN Yihui, YANG Hong, et al. Analytic-CFD
随着所添加的不平衡质量的增大,转子系统的不平
combined method for analysis of mechanical properties of
衡量降低,次同步振动出现的转速区间减小,振幅减 externally pressurized gas journal bearing[J]. Journal of
小,多孔质可倾瓦气体轴承-转子系统的稳定性得到 Mechanical Engineering,2018,54(11):180-186.
[3] SAN ANDRÉS L, YANG J, DEVITT A. On tilting pad
改善。
carbon-graphite porous journal bearings: measurements of
14 imbalance response and comparison to predictions of bearing
不平衡质量 55 mg 85 mg 120 mg
12 performance and system dynamic response[J]. Tribology
10 不平衡质量增大 [4] Transactions,2021,64(6):981-995.
ZHANG P H. A study on accuracy of porous journal air bear-
振幅 / μm 8 6 ing[J]. Precision Engineering,2020,66:42-51.
究综述
4 17400~22200 r/min [5] 丁水汀,张向波,杜发荣,等. 石墨多孔介质气体轴承研
[J]. 航空学报,2022,43(10):500-517.
2 13200~22800 r/min DING Shuiting, ZHANG Xiangbo, DU Farong, et al. A
0 review of studies on carbon-graphite porous gas bearings[J].
0 1×10 4 2×10 4 3×10 4 4×10 4 Acta Aeronautica et Astronautica sinica, 2022, 43( 10) :
−1
转速 / (r·min )
500-517.
图 17 不同不平衡质量下竖直方向次同步振动幅值随转速 [6] JIN X F,XIA P,LIU Z S,et al. Thermo-hybrid lubrication
的变化曲线 FSI-CFD model for the static characteristics of hybrid porous
tilting pad bearings[J]. Tribology International,2022,167:
Fig. 17 Variation curves of vertical sub-synchronous vibration
107397.
amplitude with rotational speed under different
[7] SAN ANDRÉS L, TAO Y J, LI Y K. Tilting pad journal
unbalanced masses
bearings: on bridging the hot gap between experimental
results and model predictions[J]. Journal of Engineering for
Gas Turbines and Power,2015,137(2):022505.
4 结 论 [8] DELGADO A, ERTAS B. Dynamic characterization of a
novel externally pressurized compliantly damped gas-lubri-
本文建立了多孔质可倾瓦气体轴承-转子系统动 cated bearing with hermetically sealed squeeze film damper
modules[J]. Journal of Engineering for Gas Turbines and
力学测试台。分析了供气压力对转子悬浮高度、降
Power,2019,141(2):021028.
速时间的影响。利用降速试验,探究了轴承供气压 [9] WU Y H,DENG M W,FENG K,et al. Investigations on
力和转子系统不平衡量对系统动力学响应的影响规 the nonlinear dynamic characteristics of a rotor supported by
律。本文的主要结论如下: porous tilting pad bearings[J]. Nonlinear Dynamics, 2020,
100(3):2265-2286.
(1)转子的悬浮高度随轴承供气压力的增大而
[10] FENG K,WU Y H,LIU W H,et al. Theoretical investiga-
升高。 tion on porous tilting pad bearings considering tilting pad
(2)增大轴承的供气压力,可以降低多孔质可倾 motion and porous material restriction[J]. Precision Engineer-
瓦气体轴承-转子系统的摩擦力。 ing,2018,53:26-37.
[11] SAN ANDRÉS L, YANG J, MCGOWAN R. Measure-
(3)增大轴承供气压力可增大轴承竖直方向的
ments of static and dynamic load performance of a 102 mm
刚度、阻尼和临界转速,降低次同步振动的幅值和 carbon-graphite porous surface tilting-pad gas journal
转速范围,提高转子系统稳定性。 bearing[J]. Journal of Engineering for Gas Turbines and
(4)减小系统不平衡量可有效降低同步振动幅 Power,2021,143(11):111017.
[12] SAN ANDRÉS L,CABLE T A,ZHENG Y,et al. Assess-
值,减小次同步振动的幅值和转速范围,提高转子系
ment of porous type gas bearings:measurements of bearing
统稳定性。 performance and rotor vibrations[C]//Proceedings of the
ASME Turbo Expo 2016:Turbomachinery Technical Confer-
ence and Exposition. Volume 7B:Structures and Dynamics.
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[2] 李一飞,尹益辉,阳红,等. 静压气体轴颈轴承力学特性 E-mail:jkai.feng@gmail.com

