Results 11 to 20 of about 29,935 (302)

Study on the mixed elasto-hydrodynamic lubrication characteristics of dynamically loaded journal bearings considering journal misalignment

open access: yesJixie chuandong
ObjectiveIn response to the unclear lubrication characteristics of dynamically loaded journal bearings under misaligned journal states, a mixed elasto-hydrodynamic lubrication model for dynamically loaded journal bearings considering journal misalignment
CAO Xi   +6 more
doaj   +2 more sources

Influences of Journal Rotating Direction on Cryogenic Hybrid Journal Bearings

open access: yesTribology Online, 2015
In the present study, two types of nine-recess hybrid journal bearings (HJBs) with different recess geometries, i.e., the Young Leaf Mark and the square, were operated at a rotational speed of up to 67,000 rpm using the cryogenic journal bearing test ...
Mamoru Oike   +4 more
doaj   +2 more sources

Studies on thermal effects in aerodynamic foil journal bearings

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
With extensive application of foil gas journal bearings in high temperature conditions, the effect of increasing temperature on performance in the bearings have attracted more attention.
Quan ZHOU, Yancheng LI, Pan LU
doaj   +1 more source

Controlled porosity alumina structures for ultra-precision hydrostatic journal bearings [PDF]

open access: yes, 2010
A series of fine-grade alumina powders has been used in combination with maize starch granules to produce porous structures for porous hydrostatic journal- bearing applications. A comprehensive series of tests was conducted to characterize porosity in
John Corbett   +6 more
core   +1 more source

Fluid Film Bearings and CFD Modeling: A Review

open access: yesMachines, 2023
This paper is a review of the literature about CFD modeling and analysis of journal, thrust, and aerostatic bearings; the advantages and disadvantages of each are specified, and the bearing problems that have been analyzed are discussed to improve their ...
Demetrio Pérez-Vigueras   +6 more
doaj   +1 more source

Hydrostatic Asymmetric Journal Gas Bearings for Largely Unbalanced Rotors of Seismic ACROSS Transmitters

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In currently working seismic ACROSS (Accurately Controlled Routinely Operated Signal System) transmitters, an unbalanced rotor with large eccentric mass, which generates elastic waves, is supported by roller bearings.
Tomohiko ISE   +4 more
doaj   +1 more source

Development of a Robust Test Rig for Tilting Pad Journal Bearing Validation

open access: yesMachines, 2022
Several theoretical models for predicting the performance of tilting pad journal bearings (TPJB) have been developed by the scientific community over the years.
Danilo Alvaro da Silva   +2 more
doaj   +1 more source

Development of a new test rig for the analysis of hydrodynamic bearings for rotors of microGT [PDF]

open access: yesE3S Web of Conferences, 2019
The aim of the present work is to design a test rig suited to investigate the dynamic interaction between rotor and hydrodynamic journal bearings in micro gas turbines (microGT), i.e.
Niccolini Marmont Du Haut Champ Carlo Alberto   +2 more
doaj   +1 more source

Modelling and Simulation of Aerodynamic Cylindrical Bearings Using ANSYS Hydrodynamic Bearing Element Types

open access: yesVehicles, 2023
Modern power engine concepts and environmental restrictions demand oil-free lubrication of rotors, for example, by gas bearings. However, the stiffness and damping properties ruling the rotor’s dynamics are poorly documented for aerodynamic bearings and ...
Katrin Baumann, Hermann Freund
doaj   +1 more source

Study on the performance of journal bearings in different lubricants by CFD and FSI method with thermal effect and cavitation

open access: yesMATEC Web of Conferences, 2018
This paper used a new transient computational fluid dynamics and fluid–structure interaction method to investigate the journal bearing performance with the effect of thermal and cavitation, to reveal the performance of journal bearing in different ...
Li Hulin   +4 more
doaj   +1 more source

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