Results 101 to 110 of about 22,870 (230)
Appearance of Hysteresis Phenomena on Hydrodynamic Lubrication in a Seal-Type Thrust Bearing with Dimples. [PDF]
Miwa R, Miyanaga N, Tomioka J.
europepmc +1 more source
Hydrodynamic Bearing Lubricated with Magnetic Fluids
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
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
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
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
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
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
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]
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
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

