Results 21 to 30 of about 1,915,854 (313)

Effects of thermal and elastic deformations on lubricating properties of the textured journal bearing

open access: yesAdvances in Mechanical Engineering, 2019
Hydrodynamic journal bearing is an important part of rotary machine and faces many challenges such as high rotating speed, heavy specific pressure, and large temperature rise with the development of industry.
Yu Zhang, Guoding Chen, Lin Wang
doaj   +1 more source

Surface Inspection of a Journal Bearing Using Machine Vision [PDF]

open access: yes한국정밀공학회지, 2017
This paper presents a machine vision-based surface inspection system for journal bearings. Traditionally, human operator inspection classifies the defective and defect-free bearings.
Jin Seok Ko, Jae Yeol Rheem
doaj   +1 more source

Spherical contact mechanical analysis of roller cone drill bits journal bearing

open access: yesPetroleum, 2016
Fang contact model is introduced to analyze stress of the spherical fixed ring journal bearing. Developed calculation programs in the MATLAB software which are utilized to calculate the contact characteristics of roller cone drill bits spherical fixed ...
Wei He   +5 more
doaj   +1 more source

Experimental Study of the Influence of Rotor Dynamics on the Temperature Distribution of a Gas Foil Bearing

open access: yesApplied Sciences, 2022
This article presents an experimental study carried out on a rotor operating on two foil bearings. One of the bearings was built in a way to measure the temperature and deformation of the top foil of the foil bearing.
Paweł Bagiński   +4 more
doaj   +1 more source

Effect of Eccentricity on the Static and Dynamic Performance of a Turbulent Hybrid Bearing [PDF]

open access: yes, 1991
The effect of journal eccentricity on the static and dynamic performance of a water lubricated, 5-recess hybrid bearing is presented in detail. The hydrostatic bearing has been designed to operate at a high speed and with a large level of external ...
Sanandres, Luis A.
core   +1 more source

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee   +9 more
wiley   +1 more source

Study the Dynamic Behavior of Rotor Supported on a Worn Journal Bearings

open access: yesJournal of Engineering, 2015
In this paper, the effect of wear in the fluid film journal bearings on the dynamic behavior of rotor bearing system has been studied depending on the analytical driven of dynamic stiffness and damping coefficients of worn journal bearing.
Adnan Naji Jamil   +2 more
doaj   +2 more sources

Effect of Main Bearing Surface Profile on Crankshaft Lubrication and Vibration Characteristic

open access: yesJixie chuandong, 2022
Taking the main bearing-main journal of a six-cylinder diesel engine as the research object,based on the elastic- -fluid lubrication theory and the micro-bump contact theory and considering factors such as journal misalignment and main bearing surface ...
Guixiang Zhu   +5 more
doaj  

Series-hybrid bearing - An approach to extending bearing fatigue life at high speeds [PDF]

open access: yes, 1971
Fluid film bearing of hybrid device consists of orifice compensated annular thrust bearing and self-acting journal bearing. In series hybrid bearing, both ball bearing and annular thrust bearing carry full system thrust load, but two bearings share speed.
Anderson, W. J.   +3 more
core   +1 more source

A method for the measurement of hydrodynamic oil films using ultrasonic reflection [PDF]

open access: yes, 2004
The measurement of the thickness of an oil film in a lubricated component is essential information for performance monitoring and control. In this work, a new method for oil film thickness measurement, based on the reflection of ultrasound, is evaluated ...
Drinkwater, B.W.   +2 more
core   +1 more source

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