Results 11 to 20 of about 6,710,712 (351)

A Mixed Lubrication Deterministic Model of an Elastic Support Water-Lubricated Tilting Pad Thrust Bearing

open access: yesLubricants, 2023
In order to study the effect of surface roughness on lubrication performance of an elastic support water-lubricated tilting pad thrust bearing, a mixed lubrication (ML) deterministic model is hereby presented based on a unified Reynolds equation model ...
Xingxin Liang   +5 more
doaj   +1 more source

The Influence of Scratches on the Tribological Performance of Friction Pairs Made of Different Materials under Water-Lubrication Conditions

open access: yesLubricants, 2023
Water-lubricated bearings are widely used in marine equipment, and the lubricating water often contains hard particles. Once these particles enter the gap between the bearing and the shaft, they can scratch the smooth surfaces of the shaft and bearing ...
Qingchen Liang   +5 more
doaj   +1 more source

Numerical Analysis of the Mixed-Lubrication Performance of Staved Stern Tube Bearings Lubricated with Water

open access: yesLubricants, 2023
The present study aims to establish a mixed lubrication model for staved stern tube bearings lubricated with water, in which the average Reynolds equation and a KE elastic–plastic contact model are introduced to calculate the hydrodynamic pressure and ...
Dongxing Tang   +3 more
doaj   +1 more source

Water lubrication of graphene oxide-based materials

open access: yesFriction, 2021
Water is as an economic, eco-friendly, and efficient lubricant that has gained widespread attention for manufacturing. Using graphene oxide (GO)-based materials can improve the lubricant efficacy of water lubrication due to their outstanding mechanical ...
Shaoqing Xue   +5 more
semanticscholar   +1 more source

Structured free-water clusters near lubricating surfaces are essential in water-based lubrication [PDF]

open access: yesJournal of The Royal Society Interface, 2016
Water-based lubrication provides cheap and environmentally friendly lubrication and, although hydrophilic surfaces are preferred in water-based lubrication, often lubricating surfaces do not retain water molecules during shear. We show here that hydrophilic (42° water contact angle) quartz surfaces facilitate water-based lubrication to the same extent ...
Jiapeng Hou   +4 more
openaire   +3 more sources

Review of the evolution and prevention of friction, wear, and noise for water-lubricated bearings used in ships

open access: yesFriction, 2023
With the development of green tribology in the shipping industry, the application of water lubrication gradually replaces oil lubrication in stern bearings and thrust bearings.
Zhuo Zhang   +10 more
doaj   +1 more source

Friction Performance of Self-Emulsifying Esters and Organic Phosphate Esters Mixed Aqueous Solution on the Surface of TB6 Titanium Alloy

open access: yesLubricants, 2023
Water-based lubrication, due to the poor film-forming ability of water, faces challenges in achieving effective lubrication for titanium alloys. This study systematically investigates the frictional performance of phosphorus-based extreme pressure (EP ...
Lishun Luo   +4 more
doaj   +1 more source

Wear analysis and life prediction of sucker rod and tubing under ternary emulsion lubrication in Daqing oilfield: a case study in block H

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Daqing Oilfield as the world’s largest application area of alkali–surfactant–polymer (ASP) flooding, in recent years, with the increase in aging wells, the eccentric wear and deformation of sucker rod and pipe during oil production has become more and ...
Chengting Liu   +4 more
doaj   +1 more source

Plastic–elastic Model for Water-based Lubrication Considering Surface Force

open access: yesChinese Journal of Mechanical Engineering, 2022
Water-based lubrication is an effective method to achieve superlubricity, which implies a friction coefficient in the order of 10−3 or lower. Recent numerical, analytical, and experimental studies confirm that the surface force effect is crucial for ...
Shuowen Zhang   +2 more
doaj   +1 more source

Air cushioning with a lubrication/ inviscid balance [PDF]

open access: yes, 2003
The air cushioning effect in the gap between an almost inviscid body of water and a nearby solid wall (or another body of water) is studied theoretically and is found to depend on predominantly lubricating forces in the air, in certain applications.
Li, L., Smith, F.T., Wu, G.X.
core   +1 more source

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