..., the article presents equations for the variance of key operational parameters, including pressure, load carrying capacity, friction force, and friction coefficient, in both finite width slider and journal bearings. Furthermore, Raimondi-Boyd-like charts are developed for various L/B and L/D ratios, across...

... analytical solutions for preliminary design consideration of thrust and journal bearings are presented with verification. Email: khonsari@lsu.edu Contributed by the Tribology Division of ASME for publication in the Journal of Tribology. 02 01 2025 29 01 2025 30 01 2025 25 02...

...Shaoyu Zhu; Xiangjun Zhang; Jun Sun; Jie Zhu The dynamic behavior of journal bearing lubricated by non-Newtonian fluid (conforms to the Carreau model) during start-up is investigated. A mixed lubrication model consisting of a GT (Greenwood–Tripp) contact equation and a transient modified average...

...Yingze Jin; Qiuli Niu; Yuanpeng Qu High-viscosity plastic fluids and polymer liners are expected to improve the lubrication and load-carrying performance of low-speed and heavy-load journal bearings. The objective of this article is to investigate the elastohydrodynamic lubrication performance...

...J. C. Atwal; P. Ganai Rigid bore aerodynamic journal bearings are widely used in precision machinery, high-speed small turbomachinery, etc., to support and guide the motion of shafts. Due to several starts/stops of the machinery, these bearings may wear out in the service, and subsequently...

... lubricating medium wettability gradient film-forming ability journal bearings lubricants mixed lubrication Water lubrication has become immensely popular due to its environmental friendliness, low cost, and good cooling performance, thereby, more and more stern shafts of ships have adopted water...

...Ge Xu; Shuyun Jiang; Chibin Zhang; Xiaohui Lin The hydrodynamic herringbone groove journal bearing (HGJB) performs exceptionally well at high speeds but is limited by a low load-carrying capacity, largely due to the lubrication characteristics of water. To address this issue, a hybrid water...

...Che Wang; Zhaodong Zhang; Yuhua Huang; Zibo Zhao; Hua Zhong; Jianhua Wu The journal bearing is pivotal for the advancement of refrigerant compressors. While the gas–oil lubrication mechanism has been explored in some previous studies, the dynamic coefficients of gas–oil-lubricated bearings...

... ribology . 15 04 2024 12 07 2024 12 07 2024 11 09 2024 Graphical Abstract Figure thrust bearing misalignment topology optimization lubrication regime water lubrication fluid film lubrication hydrodynamic lubrication journal bearings mixed lubrication...

... and technology journal bearings rolling element bearings tribological systems Graphical Abstract Figure 19 04 2024 31 07 2024 31 07 2024 11 09 2024 Copyright © 2024 by ASME 2024 American Society of Mechanical Engineers 0742-4787/2024/147(1)/014303/13/ $25.00 ...

...Nick Morris; Ramin Rahmani; Homer Rahnejat; Bharat Bhushan Surfaces of air foil thrust and journal bearings in high-speed turbomachinery are coated to improve their operational integrity, particularly when the aerodynamic load-carrying capacity is reduced during instances of startup and shutdown...

... across three main aspects: material selection, bearing structure, and surface texture. water lubrication secondary lubricating medium oil supply setting oil supply rate CFD simulation hydrodynamic lubrication journal bearings lubricants mixed lubrication viscosity Graphical...

... 07 2023 26 02 2024 27 02 2024 25 03 2024 Graphical Abstract Figure bearing design and technology bearings elastohydrodynamic lubrication fluid film lubrication hydrodynamic lubrication journal bearings There is a constant demand for heavy rotating...

... shaft water-lubricated bearing start-up process anti-interference performance bearings fluid film lubrication fluid friction hydrodynamic lubrication journal bearings At present, water-lubricated bearings [ 1 , 2 ] have been widely used in ships, hydroturbines, nuclear pumps, and other...

... for publication in the J ournal of T ribology . 11 04 2023 25 06 2023 28 06 2023 05 10 2023 distributed lubrication water-lubricated bearing data-driven axis orbit circumference film pressure journal bearings National Natural Science Foundation of China 10.13039...

....2010.11.006 [4] Gao , S. Y. , Shi , Y. G. , Xu , L. S. , Chen , H. , and Cheng , K. , 2019 , “ Investigation on Influences of Herringbone Grooves for the Aerostatic Journal Bearings Applied to Ultra-High-Speed Spindles ,” Proc Inst. Mech. Eng. C-J. Mech. , 233 ( 16 ), pp. 5795...

...-lubricated journal bearings, a turbulent flow model considering cavitation effect was proposed on the basis of two-phase flow theory. The simulation was conducted to show the influence of turbulence and cavitation effects on the static characteristics of the water-lubricated journal bearing. The proposed...

.... , Claro , J. C. P. , and Fillon , M. , 2012 , “ Experimental Comparison of the Performance of a Journal Bearing With a Single and a Twin Axial Groove Configuration ,” Tribol. Int. , 54 ( 10 ), pp. 1 – 8 . 10.1016/j.triboint.2012.04.026 [2] Miyanaga , N. , and Tomioka , J...

... for publication in the J ournal of T ribology . 07 07 2022 09 06 2023 10 06 2023 17 07 2023 bearing design and technology hydrodynamic lubrication journal bearings tribological systems University of Queensland 10.13039/501100001794 UQ research training scholarship...

...Subrata Barman; Kritesh Kumar Gupta; Subrata Kushari; Sudip Dey This investigation presents the deterministic and stochastic responses of the journal bearing with a two-layered porous bush. Pressure equations in the porous layers and modified Reynolds equations in the clearance region are governed...