Results 11 to 20 of about 1,204 (264)

Frequency Analysis of Hard Disk Drive Spindle System Supported by Hydrodynamic Bearings

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
Herringbone-grooved hydrodynamic bearings are now being applied to hard disk drive (HDD) spindle motors instead of ball bearings for demand for HDDs with larger storage capacities, faster access times, and reduced sizes.
Shohta TOHMA   +5 more
doaj   +1 more source

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

An Experimental Investigation of Hydrodynamic Journal Bearing with Different Oil Grades [PDF]

open access: yesPort Said Engineering Research Journal, 2019
Journal bearings are known to be intrinsic components in different marine applications. They are regarded as the most instrumental means by which large loads could be transmitted at mean speed of rotation.
Nour Marey
doaj   +1 more source

Effects of Wear on Lubrication Performance and Vibration Signatures of Rotor System Supported by Hydrodynamic Bearings

open access: yesLubricants, 2023
Wear is one of the most common failures of hydrodynamic bearings. The main purpose of the present work was to investigate the effects of wear on lubrication performance and acquire efficient vibration signatures for fault diagnosis.
Yang Chen   +5 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

Optimal Designs of Tilting-Pad Thrust Bearing operation with the combination of numerical and machine learning techniques [PDF]

open access: yesMATEC Web of Conferences, 2021
Hydrodynamic thrust bearings are machine elements used in many rotating machinery in order to support axial loads. The investigation of the lubrication in such mechanisms using numerical analysis methods has been the major subject of many studies over ...
Katsaros Konstantinos P.   +1 more
doaj   +1 more source

Application of the Optimization Methods to the Search of Marine Propulsion Shafting Global Equilibrium in Running Condition

open access: yesPolish Maritime Research, 2019
Full-film hydrodynamic lubrication of marine propulsion shafting journal bearings in running condition is discussed. Considerable computational difficulties in non-linear determining the quasi-static equilibrium of the shafting are highlighted.
Ursolov Aleksandr   +2 more
doaj   +1 more source

Theoretical and Numerical Investigation of Reduction of Viscous Friction in Circular and Non-Circular Journal Bearings Using Active Lubrication

open access: yesLubricants, 2023
Reducing friction losses is one of the most common ways to improve fluid film bearings, whose adjustable design provides additional opportunities to improve their dynamic and tribological properties.
Denis Shutin, Yuri Kazakov
doaj   +1 more source

CFD Analysis of Journal Bearing by Modifying The Roughness Surface [PDF]

open access: yesMATEC Web of Conferences, 2022
A journal bearing is a machine part that is used to ensure that the shaft always rotates in the opposite direction of the axis. Journal bearings are chosen because they are well-suited for use in mechanical systems that demand precision, speed, and a ...
Susilowati S.   +5 more
doaj   +1 more source

Estimation of Alignment and Transverse Load in Multi-Bearing Rotor System

open access: yesInternational Journal of Rotating Machinery, 1997
The paper presents a method for estimation of a multi-bearing machine alignment on the basis of measured eccentricities of the shaft in machine bearings. The method uses a linear FEM model of the rotor and the non-linear models of machine bearings.
Tom J. Chalko, Dong-Xu Li
doaj   +1 more source

Home - About - Disclaimer - Privacy