Rolling Bearing Fault Detection in the Range of Ultrasound

• Published in: Tehnički vjesnik Vol. 30; no. 3; pp. 830 - 836
• Main Authors: Sinikovic, Goran, Gubeljak, Nenad, Veg, Emil, Regodic, Mladen, Jagarinec, Darko, Medojevic, Ivana, Jeli, Zorana
• Format: Journal Article Paper
• Language: English
• Published: Slavonski Baod University of Osijek 2023; Josipa Jurja Strossmayer University of Osijek; Strojarski fakultet u Slavonskom Brodu; Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek; Građevinski i arhitektonski fakultet Osijek; Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
• Subjects: Analysis; Background noise; Damage detection; early fault detection; Electric potential; Fault detection; Roller bearings; rolling bearing damage; Rolling contact; Sensors; Sound detecting and ranging; Sound waves; ultrasound emission; Voltage; Serbia
• ISSN: 1330-3651; 1848-6339
• DOI: 10.17559/TV-20220919121221

Acoustic signals have been used widely to detect the integrity of metal parts and the soundness of their contact. Diverse methods are developed to evaluate the actual quality of metal-to-metal contact having a lubricating layer. These methods are sensitive to the sound waves resulting from the sliding and rolling contact of the adjacent items. The ongoing research and operational experience created an effective and reliable method for acoustic detection of rolling bearing damage. Sound waves are detected by an appropriate transducer (sensor). The signal is processed, and the resulting root-mean-square (RMS) voltage is tracked. An increase in the voltage level indicates deterioration in bearing conditions. In practice, however, such an application almost always involves several considerations, including a significant amount of interfering background noises, unacceptable sound wave attenuations, and inaccessibility of the desired sensor locations.