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An investigation of dynamic characteristics in rotor-bearing system with combined bearing and coupling defects
The development of comprehensive dynamic model for condition-based maintenance is essential when addressing severe defects, such as misalignment and...
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Self-Organizing Maps and VMD for Accurate Diagnosis of Bearing Defects
PurposeIn rotating machines, bearings are essential components, but these have a limited life and are subject to degradation. This paper discusses...
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Vibration Characteristics of High-Speed Train Axle Box Bearing with Raceway Defects Considering Track Irregularity
Axle box bearing (ABB) of a high-speed train transmits the loads and motions between the wheelset and bogie, which is essential to the operation. The...
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Extreme learning machine and ensemble techniques for classification of rolling element bearing defects
Rolling element bearings are one of the most critical component used in almost all rotating machinery. Due to long continuous run and various other...
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Vibration Analysis of Axle Box Bearing Considering the Coupling Effects of Local Defects and Track Irregularities
PurposeAxle box bearings are the crucial components of high-speed trains (HSTs). Based on Gupta’s model, a dynamic model of cylindrical roller...
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Study on the Deterioration Law of Sleeve Grouting Defects on the Lateral Bearing Capacity of Assembled Shear Walls
Sleeve grouting defects in assembled buildings leave a major safety hazard for building safety. Assembled shear walls are the most widely used key...
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Effects of Localized Defects of Gear-Shaft-Bearing Coupling System on the Meshing Stiffness of Gear Pairs
Gear-shaft-bearing systems are commonly used in transmission mechanisms of modern industry. Because of the coupling relationship of the gear pair...
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Experimental Investigation of Ball Bearing for Vibration Analysis
Vibration analysis is widely used for ball bearing prognostics to monitor the vibration signal. The measurement of vibration and their signal...
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Characteristics of vibration response of ball bearing with local defect considering skidding
The occurrence and aggravation of local defects in ball bearings are closely linked to the skidding behavior of the ball. Previous studies have given...
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Bearing Capacity Prediction of Corroded PT Beams Incorporating Grouting Defects and Bond Degradation
Corrosion can reduce the sectional area of strand, induce concrete cracking, and degrade bond strength, which can further decrease the bearing...
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Analysis of dynamic characteristics of gear-bearing transmission system with shaft current damage
Shaft voltage is easily generated at the motor’s shaft, and bearing damage will occur. It leads to abnormal vibration of the gear system. In this...
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Enhanced Bearing Fault Diagnosis Through Trees Ensemble Method and Feature Importance Analysis
PurposeThis research introduces a groundbreaking method for bearing defect detection. It leverages ensemble machine learning (ML) models and conducts...
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Dynamic modeling and vibration analysis of double row cylindrical roller bearings with irregular-shaped defects
Defects in the bearings greatly affect vibrations and performances of rotating transmission systems. Moreover, most previous works estimated the...
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Research on surface defect detection system and method of train bearing cylindrical roller based on surface scanning
Aiming at the detection of surface defects of train bearing rollers, a set of surface defect detection systems for bearing cylindrical rollers based...
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Rotor and Bearing Fault Classification of Rotating Machinery Using Extracted Features from Experimental Vibration Data and Machine Learning Approach
Earlier studies have optimised the vibration-based parameters to identify the rotor defects only for the rotating machines. The artificial neural...
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Combined VMD-Morlet Wavelet Filter Based Signal De-noising Approach and Its Applications in Bearing Fault Diagnosis
ObjectiveRolling element bearings are an essential part of rotating machinery. Sudden bearing failure may lead to catastrophic machine failure. Early...
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Full-Scale Experiment and Ultimate Bearing Capacity Assessment of Reinforced Concrete Drainage Culverts with Defects
In this paper, three full-scale box culvert specimens with different defect cases were designed and carried out based on the field investigation...
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Roller Bearing with Gear Engagement
AbstractA nonstandard roller bearing with gear engagement is studied. The load on the roller responsible for frictional–thermal failure of the...
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Rotating Machines Health Monitoring Based on Time Reversal Method: Application to Bearings Defects Localisation
PurposeThis work aims to introduce a rotating machine's defects localisation based on a time reversal method. We are interested in the study of ball...
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Study of Effects of Grouting Defects on the Seismic Performance of Precast Concrete Shear Walls with Different Structural Characteristics
Precast concrete structure is the trend of intelligent construction of green buildings in the future. Grouting sleeve connection has the advantages...