Results 31 to 40 of about 1,761,923 (152)

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo   +4 more
wiley   +1 more source

On the Reynolds lubrication equation [PDF]

open access: yes, 1988
Let Ω be a bounded open set in R 2 with “smooth” boundary ∂Ω. Ω is the region where two solid bodies are in contact. These two solids are moving and the average of their velocities is denoted by V=(V 1 ,V 2 ).
Chipot, M
core   +1 more source

Dynamic and Static Characteristics of Wavy Annular Seals in Turbulent Flow

open access: yesTribology Online, 2010
This paper presents results of a theoretical analysis to determine the leakage flow and dynamic characteristics of circumferential wave geometry annular seals using turbulent lubrication theory.
Satyam Shivam Gautam, Mihir Kumar Ghosh
doaj   +1 more source

Numerical Simulation of the Lubricant-Solid Interface Using the Multigrid Method

open access: yesLubricants, 2023
Solid asperity interactions are common and inevitable under severe loading conditions for any lubricated contact. Heavy-duty machine components (gears, bearings, etc.) generally operate under Mixed Lubrication (ML), where uneven surface features contact ...
Ruchita Patel   +3 more
doaj   +1 more source

Influence of Porous‐Layer Permeability and Thickness on Stability and Load‐Bearing Capacity of a Porous air Bearing

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The paper deals with the simulation of porous journal bearings by solving the Reynolds and Darcy equations in conjunction with the continuity equation. To find the solution, the solution domain is discretized using the finite volume method.
Laurenz Stellmach   +2 more
wiley   +1 more source

Multi-scale analysis of the roughness effect on lubricated rough contact [PDF]

open access: yes, 2014
Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for both the minimization of fuel ...
DEMIRCI, Ibrahim
core  

Combined Influence of Noncondensable Gas Mass Fraction and Mathematical Model on Cavitation Performance of Bearing

open access: yesInternational Journal of Rotating Machinery, 2020
The presence of cavitation in the oil film seriously affects the bearing lubrication performance and bearing capacity. Now the research of this phenomenon mostly focuses on the model of Reynolds equation (R-E equation) or Navier-Stokes equation (N-S ...
Lili Wang   +3 more
doaj   +1 more source

Effect of UHMWPE Incorporation on the Tribological Performance of Carbon Fiber‐Reinforced PEEK Nanocomposites

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 44, November 20, 2026.
UHMWPE provides interfacial lubrication, improving tribological performance of PEEK‐based sliding bearing bushings. ABSTRACT Ultra‐high molecular weight polyethylene (UHMWPE) was incorporated into a PEEK‐based hybrid material as a lubrication additive to improve the friction and wear performance of the composite due to its superior lubricity ...
Chi Hua, Shengqin Zhao, Yao Xu, Leyu Lin
wiley   +1 more source

Validity of the modified Reynolds equation for incompressible active lubrication

open access: yes, 2016
The modified Reynolds equation for active lubrication has been the cornerstone around which the theoretical investigations regarding actively lubricated bearings have evolved over the years.
Santos, Ilmar   +1 more
core   +1 more source

Effect of Cylinder Liner Oil Grooves Shape on Two-Stroke Marine Diesel Engine's Piston Ring Friction Force

open access: yesAdvances in Mechanical Engineering, 2015
The dimensions, area densities, and geometry of macroscale surface textures may affect the performance of hydrodynamic lubrication interface. Reported in this paper are the investigations of the effect of surface textures bottom shapes on the friction ...
Salaheldin A. Mohamad   +2 more
doaj   +1 more source

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