Results 1 to 10 of about 998,814 (193)
Bearing failure in a mobile bearing unicompartmental knee arthroplasty: an uncommon presentation of an implant-specific complication [PDF]
Arthroplasty, 2021 Background We present two cases of unicompartmental knee arthroplasty (UKA) bearing failure in this report—one case of bearing dislocation and one case of bearing fracture.
Sravya P. Vajapey +2 more
doaj +2 more sources
Analysis of bearing mechanism of large-diameter under-reamed piles based on model tests. [PDF]
PLoS ONEGiven the insufficient understanding of the bearing mechanism and failure modes of large-diameter under-reamed piles in complex strata, this study conducted scaled laboratory model tests based on similarity theory.
Jianhua Zhou +4 more
doaj +2 more sources
Frontiers in Energy Research, 2021 Wind turbines are widely installed as the new source of cleaner energy production. Dynamic and random stress imposed on the generator bearing of a wind turbine may lead to overheating and failure.
Huajin Li +5 more
doaj +1 more source
Adaptive Wavelet Threshold Ｒolling Bearing Fault Vibration Signal Denoising Method
Journal of Harbin University of Science and Technology, 2021 For the noise reduction processing of mechanical bearing fault vibration signals，the existing wavelet threshold noise reduction method can not meet the requirements of extracting weak vibration signals of bearings.
JI Jun-qing +3 more
doaj +1 more source
A Review of Research on Wind Turbine Bearings’ Failure Analysis and Fault Diagnosis
Lubricants, 2022 Bearings are crucial components that decide whether or not a wind turbine can work smoothly and that have a significant impact on the transmission efficiency and stability of the entire wind turbine’s life.
Han Peng +4 more
doaj +1 more source
Applied Sciences, 2021 Vibration-condition monitoring aims to detect bearing damages of rotating machinery’s incipient failures mainly through time–frequency methods because of their efficient analysis of nonstationary signals. However, by having failures with impulse behavior,
Edgar F. Sierra-Alonso +4 more
doaj +1 more source
A Study on Early Stages of White Etching Crack Formation under Full Lubrication Conditions
Lubricants, 2022 The appearance of White Etching Cracks (WEC), not covered by the ISO 281 modified failure rate calculation, leads to difficulties in predicting bearing reliability.
Walter Holweger +7 more
doaj +1 more source
Applied Sciences, 2021 The highest costs due to premature failures in wind turbine drivetrains are related to defects in the gearbox, with bearing failures being overrepresented. Vibration monitoring has been identified as the primary tool to detect and diagnose these types of
Daniel Strömbergsson +2 more
doaj +1 more source
Motor Bearing Damage Induced by Bearing Current: A Review
Machines, 2022 The occurrence of the motor shaft voltage and bearing current caused by the inverter will aggravate bearing damage and lead to the premature failure of bearings.
Jiaojiao Ma +4 more
doaj +1 more source
A Study on Decisive Early Stages in White Etching Crack Formation Induced by Lubrication
Lubricants, 2022 The reliability of rolling bearings is affected by white etching crack (WEC) or white structure flaking (WSF) failures, causing tremendous commercial burdens for bearing manufacturers and operators.
Jürgen Wranik +5 more
doaj +1 more source