Results 11 to 20 of about 999,991 (257)

Bearing behavior and failure mechanism of squeezed branch piles

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
The current practice for the design of squeezed branch piles is mainly based on the calculated bearing capacity of circular piles. Insufficient considerations of the load-transfer mechanism, branch effect and failure mechanism, as well as overreliance on
Minxia Zhang   +3 more
doaj   +3 more sources

Induction Motor Bearing Failure Detection and Diagnosis: Park and Concordia Transform Approaches Comparative Study

open access: yesIEEE/ASME Transactions on Mechatronics, 2008
International audienceThis paper dealswith the problem of bearing failure detection and diagnosis in induction motors. Indeed, bearing deterioration is now the main cause of induction motor rotor failures.
Benbouzid, Mohamed, Önel, Izzet
core   +6 more sources

A Learning Variable Neighborhood Search Approach for Induction Machines Bearing Failures Detection and Diagnosis

open access: yesEnergies, 2020
This paper proposes a three-phase metaheuristic-based approach for induction machine bearing failure detection and diagnosis. It consists of extracting and processing different failure types features to set up a knowledge base, which contains different ...
Charaf Eddine Khamoudj   +4 more
doaj   +1 more source

Performance Analysis of Polymer Additive Manufactured Gear Bearings

open access: yesApplied Sciences, 2023
Bearings in general, and in this case rotational bearings, are important elements in many machines. The main objective of this study was to find out the load-bearing capacity of 3D-printed gear bearings under various rotational speeds, test the bearings ...
Cristian Moldovan, Carmen Sticlaru
doaj   +1 more source

Ultimate bearing capacity of strip footings placed near slopes determined by rigorous slip line field theory

open access: yesYantu gongcheng xuebao, 2021
Calculating the ultimate bearing capacity of strip footings placed near slopes has long been a critical component in geotechnical design. In order to obtain the accurate solution of this issue, the statically and kinematically admissible conditions ...
LI Cheng-chao 1, 2, GUAN Yun-fei 1, CAI Zheng-yin 1, JIANG Peng-ming 2, HAN Xun 1
doaj   +1 more source

Application of Vibration Signals for the Quantitative Analysis of the Optimal Threshold of Bearing Failure

open access: yesShock and Vibration, 2021
This study established the prognostics and health management system for bearing failure. The vibration signals measured during the bearing operation were used for prognostics.
YaoChi Tang, Kuohao Li
doaj   +1 more source

Investigation of diesel generator shaft and bearing failures [PDF]

open access: yes, 2004
A shaft failure in a 634 kW diesel generator after 4000 hours of operation required investigation, especially when similar sets began to show signs of excessive bearing housing wear.
Der Wilson W.   +4 more
core   +1 more source

Failure analysis of automobile engine pump shaft bearing

open access: yesAdvances in Mechanical Engineering, 2021
The shaft bearing is the key component of water pump and its fatigue failure results in the abnormal operation of the system. However, the failure mechanisms of bearing are still unclear. In this paper, the failure analysis on the engine water pump shaft
Hao Guo   +6 more
doaj   +1 more source

The Enhancement of Weak Bearing Fault Signatures by Stochastic Resonance with a Novel Potential Function

open access: yesEnergies, 2020
As the critical parts of wind turbines, rolling bearings are prone to faults due to the extreme operating conditions. To avoid the influence of the faults on wind turbine performance and asset damages, many methods have been developed to monitor the ...
Chao Zhang   +6 more
doaj   +1 more source

Influence of Timing of Postoperative Weight-Bearing on Implant Failure Rate Among Older Patients With Intertrochanteric Hip Fractures: A Propensity Score Matching Cohort Study

open access: yesFrontiers in Medicine, 2021
Introduction: The purpose of this study was to determine whether immediate weight-bearing as tolerated increased the risk of implant failure and decreased functional outcomes compared with restricted weight-bearing.Methods: From January 2010 to December ...
Xiaoyang Jia   +5 more
doaj   +1 more source

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