Early Detection of Subsurface Fatigue Cracks in Rolling Element Bearings by the Knowledge-Based Analysis of Acoustic Emission.
Einar Løvli HidleRune Harald HestmoOve Sagen AdsenHans LangeAlexei VinogradovPublished in: Sensors (Basel, Switzerland) (2022)
Aiming at early detection of subsurface cracks induced by contact fatigue in rotating machinery, the knowledge-based data analysis algorithm is proposed for health condition monitoring through the analysis of acoustic emission (AE) time series. A robust fault detector is proposed, and its effectiveness was demonstrated for the long-term durability test of a roller made of case-hardened steel. The reliability of subsurface crack detection was proven using independent ultrasonic inspections carried out periodically during the test. Subsurface cracks as small as 0.5 mm were identified, and their steady growth was tracked by the proposed AE technique. Challenges and perspectives of the proposed methodology are unveiled and discussed.
Keyphrases
- data analysis
- healthcare
- public health
- randomized controlled trial
- sleep quality
- machine learning
- systematic review
- mental health
- deep learning
- health information
- magnetic resonance
- neural network
- risk assessment
- computed tomography
- loop mediated isothermal amplification
- label free
- physical activity
- depressive symptoms
- magnetic resonance imaging
- sensitive detection