Results 1 to 10 of about 1,901,860 (365)

Shallow grooves in journal improve air bearing performance [PDF]

open access: green, 1968
Bearing designs, which shape the surface to create artificial fluid-film wedges in the absence of any applied radial load, generate radial restoring forces to keep journals from whirling.
Anderson, W. J.   +2 more
core   +2 more sources

A New Type of Misaligned Journal Bearing with Flexible Structure

open access: yesLubricants, 2023
A flexible structure is applied to improve the lubrication performance of a misaligned journal bearing. The journal bearing is a representative sliding bearing, and there is damage due to metal-to-metal contact as a result of misalignment.
Woo-Ju Jeon, Sung-Ho Hong
doaj   +1 more source

Development of A Universal Journal Bearing Test Rig (UJBTR) and ‎Experimental ‎Setup for Oil Film Lubrication Enhancement Regarding ‎Marine Applications. [PDF]

open access: yesPort Said Engineering Research Journal, 2022
In fact, attaining the final most beneficial target of improving the oil film lubrication for marine ‎‎purposes can be ‎said to have passed through several main stages up till now.
Nour Marey   +4 more
doaj   +1 more source

Effect of Thermal Boundary Condition on Tilting Pad Journal Bearing Behavior

open access: yesApplied Sciences, 2020
This research presents the effect of the thermal boundary condition on the tilting pad journal bearing characteristics. The thermal boundary condition includes the temperature around the bearing pad, spinning journal, and lubricant supply temperature ...
Junho Suh, Changwon Kim, Je-Heon Han
doaj   +1 more source

Analysis on the Performances of Misaligned Journal Bearings using Full-Scale Test Rig and Conjugate Heat Transfer Method [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Misalignment effects increase the risk of scratch or seizure failure for the journal bearings-rotor system. To investigate the performances of misaligned journal bearings, a full-scale journal bearings-rotor system test rig is designed and journal orbits
Q. Li   +6 more
doaj   +1 more source

An Evaluation of the Design Parameters of a Variable Bearing Profile Considering Journal Perturbation in Rotor–Bearing Systems

open access: yesDesigns, 2023
A variety of bearing profile designs can be used to improve the performance of a rotor–bearing system in severe conditions, such as operating with a shaft misalignment.
Adawiya Ali Hamzah   +5 more
doaj   +1 more source

Equivalent Stiffness Calculation of a Journal Bearing by Analytical Approach for Vibrational Modeling [PDF]

open access: yesمجله مدل سازی در مهندسی, 2019
More equipment which is used in the mechanical industry has rotating shafts. In the design of the rotating shaft, vibration prediction of the system is very important to reduce and prevent vibrations of the system. One of the important elements that have
Abbas Rahi, Tina Haddad
doaj   +1 more source

Influence of roundness error screw on running characteristics of sliding bearing based on SDT [PDF]

open access: yesMATEC Web of Conferences, 2022
In order to study the influence of roundness error on the oil film characteristics of journal bearing rotor system, a dynamic model of journal bearing rotor system with roundness error was established, and a new generalized roundness error equation is ...
Chen Zhenyu, Xu Wubin, Li Bing
doaj   +1 more source

Effect of Engineered Roughness on the Performance of Journal Bearings Lubricated by Bingham Plastic Fluid Using Computational Fluid Dynamics (CFD)

open access: yesLubricants, 2022
A journal bearing is a machine element that is used to keep the shaft rotating about its axis. The increasing demand for journal bearing applications in high-speed machines that are efficient and economical has resulted in the need for improvements to ...
Nur Cahyo   +6 more
doaj   +1 more source

Running performance of an aerodynamic journal bearing with squeeze film effect [PDF]

open access: yes, 2013
Results of theoretical and experimental studies concerning the performance of an aerodynamic journal bearing which running is assisted by squeeze film ultrasonic levitation (SFUL) are presented in this paper.
Ha   +13 more
core   +1 more source

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