A review of grooved dynamic gas bearings

L Gu, E Guenat, J Schiffmann - Applied …, 2020 - asmedigitalcollection.asme.org
This paper offers an extensive review of publications dealing with the modeling, the design,
and the experimental investigation of grooved dynamic gas-lubricated bearings. Recent …

Compliant hybrid gas bearing using integral hermetically sealed squeeze film dampers

B Ertas - Journal of Engineering for Gas Turbines …, 2019 - asmedigitalcollection.asme.org
This paper focuses on an integral gas-film lubricated bearing concept developed to enable
the oil-free operation of super-critical carbon dioxide (sCO2) turbomachinery. The externally …

Thermo-hybrid lubrication FSI-CFD model for the static characteristics of hybrid porous tilting pad bearings

X **, P **a, Z Liu, W Ma, P Zhang, Y Liang - Tribology International, 2022 - Elsevier
Hybrid porous tilting pad bearing (HPTPB) is a new hybrid lubrication bearing showing
potential for oil-free high-speed turbomachinery with reliable stability. This study presents a …

Theoretical and numerical investigations on static characteristics of aerostatic porous journal bearings

Y Gu, J Cheng, C **e, L Li, C Zheng - Machines, 2022 - mdpi.com
To investigate the static characteristics of aerostatic journal bearings with porous bushing,
the flow model—in which the compressibility of lubricating gas is considered—is established …

Porous gas Journal bearings: an exact solution revisited and force coefficients for stable rotordynamic performance

LS Andrés, J Yang, A Devitt - Applied Sciences, 2021 - mdpi.com
Having come of age, gas film bearings enable high-speed oil-free (micro) rotating machinery
with gains in efficiency and reliability, longer maintenance intervals, and a reduction in …

A novel method to achieve fast multi-objective optimization of hydrostatic porous journal bearings used in hydraulic turbomachine

Y Gu, D Wang, L Cheng… - Journal of Fluids …, 2023 - asmedigitalcollection.asme.org
The hydrostatic journal bearing equipped with a carbon-fiber-reinforced carbon-based
porous bushing is employed in the hydraulic turbomachine. The bearing exhibits high load …

Theoretical and experimental investigation of porous tilting pad gas bearings with hermetic squeeze film dampers based on multilayer diaphragm structure

K Feng, J Wang, H Li, Y Wu, P Wang, W Li - Tribology Transactions, 2023 - Taylor & Francis
A novel porous tilting pad gas bearing (PTPGB) with hermetic squeeze film dampers based
on multilayer diaphragm structure (MLD-HSFD) is proposed for oil-free turbomachinery. A …

Experimental and theoretical investigation on rotodynamic characterization of hybrid porous tilting pad bearings

Y Wu, L An, K Feng, Y Cao, H Guan - Mechanical Systems and Signal …, 2022 - Elsevier
Porous journal gas bearings, which offer advantages of high load capacity and good
stiffness compared to other types of hydrostatic gas bearings, will meet instability issues at …

Nonlinear dynamic analysis of a rotor-bearing system with porous tilting pad bearing support

Y Wu, K Feng, Y Zhang, W Liu, W Li - Nonlinear Dynamics, 2018 - Springer
Porous tilting pad bearings (PTPBs) show a potential for using in high-speed, high precision
rotating machinery that requires high bearing stiffness and good stability. In this study, the …

Theoretical investigation on porous tilting pad bearings considering tilting pad motion and porous material restriction

K Feng, Y Wu, W Liu, X Zhao, W Li - Precision Engineering, 2018 - Elsevier
Porous tilting pad bearings (PTPBs) hold potential for applications that require high bearing
stiffness and good stability. This study presents a numerical analysis of PTPBs. A three …