Results 21 to 30 of about 19,606 (183)

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

Hydrodynamic lubrication of porous journal bearings with a grease.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1985
Porous materials find a wide range of applications as bearing metals because of their self-lubricating action. On the other hand, grease its widely used as a lubricant for porous metal bearings because of its simplicity of application. Unfortunately, since the governing law for flows of grease in porous matrices, that is Equivalent to Darcy's law for ...
WADA, Sanae, KAWAKAMI, Yoshiyuki
openaire   +2 more sources

CFD analysis of partial slip effect on the performance of hydrodynamic lubricated journal bearings

open access: yesMATEC Web of Conferences, 2018
Slip modification of the lubricated bearing such hydrophobic coating has proven to improve the hydrodynamic performance. The present paper investigates the effect of partial slip on the journal bearing performance using computational fluid dynamic (CFD ...
Muchammad   +4 more
doaj   +1 more source

Effects of Active Vibration Control of Journal Bearings [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2016
The article deals with the stability of the movement of the journal inside the bushing of the hydrodynamic plain bearings, which limits the operational range of rotor rotational speed.
Jiří Tůma   +4 more
doaj   +1 more source

The effect of textured surfaces on the hydrodynamic pressure generation in journal bearings

open access: yesMATEC Web of Conferences, 2018
Surface texturing of the lubricated bearing has proven to improve the hydrodynamic performance. The present paper analyzed the effect of surface texturing on the covergent journal bearing with computational fluid dynamic (CFD) approach.
Muchammad   +4 more
doaj   +1 more source

A CFD-Based Frequency Response Method Applied in the Determination of Dynamic Coefficients of Hydrodynamic Bearings. Part 1: Theory

open access: yesLubricants, 2019
A general, CFD-based frequency response method for obtaining the dynamic coefficients of hydrodynamic bearings is presented. The method is grounded in experimental parameter identification methods and is verified for an extremely long, slider bearing ...
Troy Snyder, Minel Braun
doaj   +1 more source

A New State Assessment Method for Hydrodynamic Journal Bearings under Different Assembly Characteristics

open access: yesMathematics
As the transmission component in mechanical systems, hydrodynamic journal bearing is widely used in large electromechanical equipment. The instability of the hydrodynamic journal bearing often results in mechanical wear and damage, which may cause ...
Hong Lu   +4 more
doaj   +1 more source

Pivot Stiffness Effect on Transient Dynamic Characteristic of Tilting Pad Journal Bearing-Rotor System Passing through Critical Speed

open access: yesLubricants, 2023
Tilting pad journal bearings (TPJBs) are widely applied in the high-speed rotor system whose working speed is higher than its critical speed due to excellent hydrodynamic lubrication and stability.
Yingze Jin   +3 more
doaj   +1 more source

FAILURE PROBABILITY EVALUATION OF A HYDRODYNAMIC JOURNAL BEARING

open access: yes, 2015
Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly focused on the indicators of dependability of systems and machines.
DIOP, Khadim   +3 more
openaire   +2 more sources

Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander

open access: yesInternational Journal of Rotating Machinery, 2017
Foil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery.
Tianwei Lai   +4 more
doaj   +1 more source

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