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This doctoral research will numerically evaluate wear at single or multiple points in mechanical contacts and its connection to airborne friction noise.
Friction-induced noise and wear occur unavoidably in machinery components, even during normal operation. Wear-related surface deterioration at mechanical contacts affects emitted noise due to sudden energy releases from localized material sources. The extent of surface damage can alter noise patterns, making noise analysis a potential diagnostic tool for machine component health.
Previous studies have established empirical models linking noise signals to wear through accumulated signal energy and spectral amplitude variations. Nevertheless, the intricate nature of wear tribo-mechanics continues to pose challenges in numerically simulating friction noise, even for a single mechanical contact undergoing wear-related degradation.