Results 31 to 40 of about 3,606 (307)

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

Investigation on hydrodynamic lubrication of bearings in a left ventricular assisted device

open access: yesFriction, 2019
Formations of clots were found inside the hydrodynamic bearings of the left ventricular assisted devices (LVADs) and caused tremendous risks to the long-term use of these devices.
Xiaobing Zheng   +4 more
doaj   +1 more source

A Review on Performance Characteristics of an Air Foil Thrust Bearing

open access: yesTribology Online, 2022
The axial loads of high-speed rotating turbo machines are supported by self-acting hydrodynamic components known as air foil thrust bearings (AFTB). The load bearing capability of these bearings depends primarily on the foil structure and secondarily on ...
Supreeth Shivakumar   +3 more
doaj   +1 more source

Plain bearing stresses due to forming and oil film pressure

open access: yes, 2009
This paper describes a methodology for assessing critical stress ranges arising in automotive plain bearings during engine operations. An industry-produced and run simulation program provides information on oil film pressure and overall bearing ...
S Syngellakis   +11 more
core   +1 more source

The effect of groove texture patterns on piston-ring pack friction [PDF]

open access: yes, 2012
A cylinder liner possesses fairly intricate surface requirements due to its complicated functions. It needs to provide adequate surface roughness to resist wear as well as to store and retain lubricants during high temperatures. The liner surface texture
EL MANSORI, Mohamed   +7 more
core   +1 more source

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