Results 101 to 110 of about 22,870 (230)

Hydrodynamic Bearing Lubricated with Magnetic Fluids

open access: yesJournal of Intelligent Material Systems and Structures, 2009
This article summarizes the work carried out in the development of hydrodynamic lubricated journal bearings with magnetic fluids. Two different fluids have been analyzed: one is the ferrofluid from FERROTEC APG s10n and the other is the magnetorheological (MR) fluid from LORD Corp., MRF122-2ED.
Urreta, Harkaitz   +5 more
openaire   +2 more sources

Implementation of a Thermomechanical Model for Journal Bearings Using p‐FEM

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT Hydrodynamic journal bearings are essential machine parts that are used for applications with high rotational speeds. Their precise simulation requires the consideration of thermomechanical interactions between solids and fluid. During operation, the shear stresses in the fluid (lubricant film heights: 5–100 μm${\umu }\mathrm{m}$), lead to ...
Fabian Schmidtchen   +4 more
wiley   +1 more source

Hydrodynamic oscillations and variable swimming speed in squirmers close to repulsive walls

open access: yes, 2016
We present a lattice Boltzmann study of the hydrodynamics of a fully resolved squirmer, radius R, confined in a slab of fluid between two no-slip walls.
Brown, Aidan T.   +3 more
core   +3 more sources

Carbohydrate–Protein Hydrogels as Fat Replacers: Design Criteria and Benchmarking Against Full‐Fat Systems

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.
ABSTRACT Reducing saturated fat while preserving the sensory quality of full‐fat foods remains a major formulation challenge because fat contributes simultaneously to body, lubrication, flavor delivery, and thermal transitions. Carbohydrate–protein (CP) hydrogels are increasingly explored as oil‐free fat replacers, but many systems are developed and ...
Amir Amiri   +4 more
wiley   +1 more source

Hump‐Shaped Enhancement of Coarse‐Grain Transport in Sediment Mixtures Induced by Fine Grains of Different Sizes

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Bedload transport of sediment mixtures is fundamental to river morphology and impacts aquatic ecology. Adding fine grains enhances coarse‐grain transport, yet controlling mechanisms remain elusive. Employing discrete element simulations, we examine how fine‐grain size and proportion influence coarse‐grain flux.
Yu Zhang   +4 more
wiley   +1 more source

Modeling Fiber Dispersion in a Single‐Screw Extruder for Long Fiber‐Reinforced Thermoplastics

open access: yesPolymer Composites, Volume 47, Issue 8, Page 7675-7686, 20 April 2026.
Fiber dispersion throughout the screw channel ABSTRACT Understanding the mechanics of fiber attrition during the plasticizing process is important in predicting the strength of long fiber‐reinforced thermoplastics (LFT) composites. Fiber dispersion has been found to impact fiber damage during processing and therefore final fiber length in the final ...
Hector Sebastian Perez   +4 more
wiley   +1 more source

Systematic Parameter Selection for Short Fiber Polymer Composite Direct Fiber Simulation

open access: yesPolymer Composites, Volume 47, Issue 7, Page 6319-6340, 10 April 2026.
Interactions of individually simulated fibers are systematically calibrated such that their orientation history agrees with the results from analytical orientation models. ABSTRACT The orientation of fibers in short discontinuous fiber reinforced polymer composites is a critical factor in determining final mechanical and thermal properties.
Jason B. Pierce, Douglas E. Smith
wiley   +1 more source

Identification of lubrication Regimes in Mechanical Seals using Acoustic Emission for Condition Monitoring [PDF]

open access: yes
The quality of lubrication condition between seal faces directly affects the reliability, operating life and sealing performance of mechanical seals. Thus, the identification of lubrication regimes in face seals i.e.
Ball, Andrew   +3 more
core  

Analysis of Chaotic Features in Dry Gas Seal Friction State Using Acoustic Emission

open access: yesLubricants
In this study, a chaos theory-based characterization method is proposed to address the nonlinear behavior of acoustic emission (AE) signals during the startup and shutdown phases of dry gas seals. AE signals were collected through a controlled experiment
Shuai Zhang   +4 more
doaj   +1 more source

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