Results 21 to 30 of about 209,657 (314)

Experiment and Numerical Study of Wear in Cross Roller Thrust Bearings

open access: yesLubricants, 2015
Bearings are essential parts used in machine tools where high precision is required. It is important to understand bearing failure in order to replace a bearing before it affects the quality of precision.
So Young Hwang, Na Ra Lee, Naksoo Kim
doaj   +1 more source

Experimental Study on Characteristics of Pile-Soil Interaction in Screw Piles

open access: yesBuildings, 2022
A screw pile is a special-shaped pile with several advantages, including good bearing capacity, economy, and rapid construction. The calculation of the screw piles’ ultimate bearing capacity in the individual bearing failure state remains controversial ...
Jiakuan Ma   +4 more
doaj   +1 more source

Observations of acoustic emission in a hydrodynamic bearing [PDF]

open access: yes, 2009
Purpose - Numerous studies have been conducted in the field of acoustic emission (AE) technology applied to rotating machine fault diagnosis. Principally, most of the work to date has been focused on correlating AE activity to the defect condition on ...
Mba, David, Mirhadizadeh, S. A.
core   +1 more source

Numerical study on failure process and ultimate state of steel bearing under combined load

open access: yesHeliyon, 2020
The limit state and deformation performance of steel bearing under seismic load is one of the most critical points to consider the effective or rational design of bridge against strong ground motion.
Hagere Alemayehu Gibe   +2 more
doaj   +1 more source

Experimental study on reinforcement effects of bonded steel plates of highway tunnels under different damage degrees

open access: yesYantu gongcheng xuebao, 2023
The cracking damage of linings is a common damage form of tunnels, which directly affects the bearing capacity of the structure. The reinforcement of bonded steel plates is widely used as the structural reinforcement, but there are few researches on the ...
LIU Xuezeng 1, LI Zhen 1, YOU Guiliang 2, YANG Zhilu 3, 4, YANG Xueliang 1, SANG Yunlong 3, 4
doaj   +1 more source

The application of spectral kurtosis on Acoustic Emission and vibrations from a defective bearing [PDF]

open access: yes, 2011
The application of Acoustic Emission (AE) technology for machine health monitoring is gaining ground as power tool for health diagnostic of rolling element bearing.
Mba, David   +7 more
core   +1 more source

Rolling Bearing Fault Diagnosis Based on the Coherent Demodulation Model

open access: yesIEEE Access, 2020
The rolling bearing is an important part of rotary machineries and the health state monitoring is currently a hot research topic. There are four typical failure modes of a rolling bearing: the inner race failure, the outer race failure, the rolling ...
Yinghua Shao, Rui Kang, Jie Liu
doaj   +1 more source

Failure Analysis of a Cylindrical Roller Bearing Caused by Excessive Tightening Axial Force

open access: yesMachines, 2022
The premature failure of a cylindrical roller bearing took place during service, with a total operation time of 100 h. The failure cause was analyzed by macroscopic and microscopic observation, metallographic analysis, hardness testing, tightening axial ...
Xueqin Hou   +5 more
doaj   +1 more source

Bearing defect diagnosis and acoustic emission. [PDF]

open access: yes, 2003
Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David   +3 more
core   +1 more source

Failure Mode Detection and Validation of a Shaft-Bearing System with Common Sensors

open access: yesSensors, 2022
Failure mode detection is essential for bearing life prediction to protect the shafts on the machinery. This work demonstrates the rolling bearing vibration measurement, signals converting and analysis, feature extraction, and machine learning with ...
Chung-Hsien Kuo   +2 more
doaj   +1 more source

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