Results 11 to 20 of about 747,702 (266)

Fuzzy logic–based intelligent control for hydrostatic journal bearing

open access: yesMeasurement + Control, 2019
Most of the researchers are focusing to bring automation in mechanical systems. So, current research work presents a mechatronic system called active hydrostatic journal bearing that is a higher demand of fast-growing industrial needs.
Waheed UR Rehman   +6 more
doaj   +1 more source

Experimental Measurement of Oil Film Temperatures of Elliptical Journal Bearing Profile Using Different Grade Oils

open access: yesTribology Online, 2010
A significant variation in oil film temperature has been observed in hydrodynamic journal bearings. Here, a journal bearing test rig has been developed to measure the oil film temperature on the three circumferential planes of the journal bearing ...
Rakesh Sehgal
doaj   +1 more source

Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance

open access: yesAdvances in Mechanical Engineering, 2018
Active hydrostatic journal bearings represent a mechatronic answer to the fast-growing industrial needs to high-performance rotary machineries. The aim of this research is to study and improve the dynamic characteristics of hydrostatic bearing, with four
Waheed Ur Rehman   +6 more
doaj   +1 more source

The combined effect of couple stresses, variable viscosity and velocity-slip on the lubrication of finite journal bearings

open access: yesAin Shams Engineering Journal, 2020
We examine the combined effect of variable viscosity, velocity slip, and the couple stress lubricant on a finite journal bearing. In our model, we utilize the Stokes micro-continuum theorem, the Barus formula, and an artificial (homogeneous) slip surface
Tyrone Dass   +2 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

Lubrication Performance of Misaligned Journal Bearings with Flexible Structure under Shock Load Conditions

open access: yesLubricants, 2023
Bearings might be damaged due to shock loads caused by disturbances, in addition to static loads. In this study, a flexible structure was applied to enhance the lubrication characteristics of misaligned journal bearings subjected to impact loads. When an
Sung-Ho Hong, Woo-Ju Jeon
doaj   +1 more source

Seizure and Friction Properties of the DLC Coated Journal and Aluminum Alloy Bearing

open access: yesTribology Online, 2020
Using a bearing tester that can control the relative positional relationship between the shaft and the bearing in parallel, the seizure and friction property of the combination of a-C:H:Si DLC coated journal and the aluminum alloy bearing were verified ...
Hidemi Ogihara, Yuji Mihara, Makoto Kano
doaj   +1 more source

A thermohydrodynamic performance analysis of a fluid film bearing considering with geometrical param

open access: yesJournal of Thermal Engineering, 2023
Bearing performance characteristics such as stiffness, and load capacity, are related to the lubrication fluid circulating through the gap. In the fluid film bearings, the characteristic of the lubrication film also depends on the journal geometry and ...
Abdurrahim DAL   +2 more
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

Analysis of Under-Lubricated Condition for Journal Bearing with Coupled Tribological Behavior

open access: yesLubricants
Journal bearings are prone to failure due to lubrication state degradation under extreme operating conditions. To address the unclear transition mechanism and undefined state boundaries under insufficient lubrication, a coupled tribological model of ...
Nao Hu   +8 more
doaj   +1 more source

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