...-mechanical performance. Fig. 1 Foil thrust bearing load-carrying capacity and upper operating speed Foil thrust bearing load-carrying capacity and upper operating speed Fig. 2 Primary heat transfer paths of an air bearing in full film hydrodynamic regime of lubrication Primary heat transfer...

...Collier Fais; Muhammad Ali; Isaiah Yasko This study presents the design and development of a new hydrodynamic thrust bearing test rig with a novel hydrodynamic pressure feedback bearing alignment control system. The bearing alignment system maintains an even distribution of thrust load across...

...Xiaodong Yu; Yanlong Lin; Peng Wang; Zhiyuan Lan; Mingjuan Shao; Lu Li; Enzhao Li; Xinyi Yang; Ruichun Dai; Wentao Jia; Junfeng Wang; Jianhua Jiao; Hui Jiang The oil cavity shapes, which represent the spatial structures for storing lubricant in static and dynamic thrust bearings, and offset...

...Saltuk Yildiz; Alexandrina Untaroiu Air foil thrust bearings provide some advantages over oil-lubricated thrust bearings. The use of these bearings reduces weight and increases dynamic stability, making it possible to reach high rotational speeds. However, as the bearing reaches high rotational...

... by Coupled Journal and Thrust Bearings Considering Five Degrees of Freedom ,” Tribol. Int. , 43 ( 8 ), pp. 1479 – 1490 . 10.1016/j.triboint.2010.02.007 [16] Hirayama , T. , Yamaguchi , N. , Sakai , S. , Hishida , N. , Matsuoka , T. , and Yabe , H. , 2009 , “ Optimization...

... and load capacity of the coupled journal-thrust bearing and the laminar flow assumption is no longer applicable to the actual operating conditions of the water-lubricated bearings at a high rotation speed. In addition, optimal micro groove depths for both journal bearing and thrust bearing exist to reach...

...Changlin Li; Jianjun Du; Jie Li; Zhenni Xu; Chenyang Zhao The multilayer gas foil thrust bearing (MLFTB) has four layers of foil structures with each having unique configuration and function. In this article, an updated complete model of the overlapped foil layers of MLFTB is established...

... bearing becoming harsher, and severe wear may occur. The present study is aimed at mitigating its wear condition through surface texturing. Based on a transient tribo-dynamics model considering the coupling effect of the journal and thrust bearings, a texture optimization study for the thrust bearing...

... to decrease the friction power loss, and other static characteristics of the bearing will be affected by the such textural surface. However, the static characteristics of water-lubricated textured spiral groove thrust bearing have not been thoroughly considered. This article aims to establish the theoretical...

...Yunluo Yu; Guang Pu; Tianchu Jiang; Kyle Jiang Many studies in herringbone grooved thrust bearings are focused on searching for the optimal groove parameters to improve the load capacity, but none of them adopt different grooves in different sections. In this study, a novel optimization method...

...Nguyen LaTray; Daejong Kim The integration of foil bearing technology into high-speed oil-free machines has been slow in progress, in part, due to the low load-carrying capacity of the foil thrust bearing. It is crucial this issue is addressed through innovative solutions without overcomplicating...

...Shaowen Zhang; Shuyun Jiang The purpose of this technical brief is to investigate comparatively the static characteristics of the double-pad inwardly pumping and outwardly pumping water-lubricated spiral-groove thrust bearings (SGTBs). Firstly, a thermo-hydrodynamic lubrication model including...

... were conducted with full-bearing samples of three variants: solid, 61H (hollow roller with 61% hollowness), and layered on a manual compression testing machine. The static and dynamic capacities for the selected solid cylindrical roller thrust bearing 81209 are 255 kN and 83 kN, respectively [ 22...

...J. C. Atwal; R. K. Pandey This paper presents the performance behaviors (coefficient of friction, minimum film thickness, and pressure distributions) of a fluid film thrust bearing using a newly conceived micro-texture on pads. In the numerical investigation, the Reynolds equation has been...

...@tudelft.nl Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 24 03 2020 15 05 2020 15 05 2020 11 06 2020 hydrostatic thrust bearings externally pressurized bearings compliant-hydrostatic compliant fluid bearings functionally...

...Shaowen Zhang; Shuyun Jiang; Xiaohui Lin The dynamic characteristics of the double-pad inwardly pumping water-lubricated spiral-groove thrust bearing (SGTB) is different from that of the outwardly pumping version, especially under a high-speed condition. However, no literature on this topic can...

... to the radial FBs, and thus rotordynamics stability is more challenging than load capacity. However, a main challenge of gas foil thrust bearings (GFTBs) is how to increase the load capacity, and the challenge remains the same regardless of the size. In previous publications on experimental studies on GFTBs...

... ] instrumented the thrust bearing with strain gages in a semi-floating ring bearing TC. Both Deligant et al. [ 26 ] and Lee et al. [ 28 ] have also instrumented the thrust bearing with the latter incorporating thermal effects on the modified bearing into their calibration. Gjika and LaRue [ 29 ] and Lamquin...

...Gen Fu; Alexandrina Untaroiu Contact performance can be enhanced by using textured surfaces. These are also found to have influences on lubricated contacts. A procedure to find the optimal partially textured thrust bearing configuration is presented in this study. A parallel sector-pad thrust...

...Xiaohui Lin; Shuyun Jiang; Chibin Zhang; Xiang Liu A thermohydrodynamic lubrication model of turbulent cavitating flow for high-speed spiral groove thrust bearing was developed considering the effects of cavitation, turbulence, inertia, breakage, and coalescence of bubbles. Comparing...