Results 11 to 20 of about 51,949 (274)

Effect of Multiple Factors on Identification and Diagnosis of Skidding Damage in Rolling Bearings under Time-Varying Slip Conditions

Applied Sciences, 2019
Skidding damage mechanism of rolling bearings is not clear, due to the influence of various coupling factors. To solve this problem, it is important to identify and diagnose skidding damage and study the vibration characteristics in rolling bearings ...
Junning Li, Wuge Chen, Jiafan Xue, Ka Han, Qian Wang   +4 more
doaj   +1 more source

Vibration diagnostics of bearing assemblies of paper machines

Технічна інженерія, 2023
The reliability and performance of technological equipment largely depends on timely and reliable diagnostics of less durable assembly units, which include rolling bearings.
Ya.A. , V.V., I.P. , O.M.
doaj   +1 more source

Analysis of rolling bearing power loss models for twin screw oil injected compressor [PDF]

, 2019
The mechanical losses inside a screw compressor limit the performance of the compressor in terms of efficiency. These losses arise due to relative motion between elements inside the screw compressor.
, , , A Kovacevic, Abdan S, Harris T, I Smith, N Asati, N Stosic, S Abdan, Tu M   +10 more
core   +1 more source

Rolling Bearings Fault Diagnosis Based on Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Nonlinear Entropy, and Ensemble SVM

Applied Sciences, 2020
Rolling bearings are fundamental elements that play a crucial role in the functioning of rotating machines; thus, fault diagnosis of rolling bearings is of great significance to reduce catastrophic failures and heavy economic loss. However, the vibration
Rui Li, Chao Ran, Bin Zhang, Leng Han, Song Feng   +4 more
doaj   +1 more source

Investigation of the influence of the degree of contact of rolling surfaces on contact stresses in ball radial bearings

RUDN Journal of Engineering Research, 2022
The study is devoted to the determination of the coefficients of the degree of contact of rolling surfaces, considering the tolerance field of rolling bodies, as well as the influence of the coefficients of the degree of contact on the maximum contact ...
Yuriy V. Belousov, Valeriy V. Kirilovskiy, Fedor V. Rekach   +2 more
doaj   +1 more source

Fatigue Life Analysis of Rolling Bearings Based on Quasistatic Modeling

Shock and Vibration, 2015
Rolling bearings are widely used in aeroengine, machine tool spindles, locomotive wheelset, and so forth. Rolling bearings are usually the weakest components that influence the remaining life of the whole machine. In this paper, a fatigue life prediction
Wei Guo, Hongrui Cao, Zhengjia He, Laihao Yang   +3 more
doaj   +1 more source

Experimental Assessment of Influence of the Ball Bearing Raceway Curvature Ratio on the Level of Vibration

Communications, 2020
Raceway curvature ratio is a very important parameter, because its values influence the performance characteristics of rolling-element bearings, their durability and the level of generated vibrations.
Pawel Zmarzly
doaj   +1 more source

Creep Phenomenon in Thrust Washers of Needle Roller Bearings

Tribology Online
In radial rolling bearings, a phenomenon called creep occurs in the outer ring (the stationary/fixed raceway) when the bearing is subjected to excessive load.
Hiromichi Takemura, Taketoshi Chifu, Tetsuya Okumura   +2 more
doaj   +1 more source

Rolling Bearing Fault Diagnosis Based on Multiscale Permutation Entropy and SOA-SVM

Machines, 2022
The service conditions of underground coal mine equipment are poor, and it is difficult to accurately extract the fault characteristics of rolling bearings.
Xi Zhang, Hongju Wang, Mingming Ren, Mengyun He, Lei Jin   +4 more
doaj   +1 more source

Bridging the gap: Multi‐stakeholder perspectives of molecular diagnostics in oncology

Molecular Oncology, EarlyView.
Although molecular diagnostics is transforming cancer care, implementing novel technologies remains challenging. This study identifies unmet needs and technology requirements through a two‐step stakeholder involvement. Liquid biopsies for monitoring applications and predictive biomarker testing emerge as key unmet needs. Technology requirements vary by
Jorine Arnouts, Senada Koljenović, Elise Daems, Karolien De Wael, Marc Peeters, Léon C. van Kempen, Greetje Vanhoutte, Karen Zwaenepoel, Timon Vandamme   +8 more
wiley   +1 more source