A Study on Incipient Damage Monitoring in Rolling Contact Fatigue Process Using Acoustic Emission

Autor:	Takeo Yoshioka, Takashi Yamamoto, Md. Ziaur Rahman, Hiroaki Ohba
Rok vydání:	2008
Předmět:	Materials science business.industry Mechanical Engineering Process (computing) Rolling contact fatigue Surfaces and Interfaces Structural engineering Signal Surfaces Coatings and Films Acoustic emission Mechanics of Materials Constant load business Signal conditioning
Zdroj:	Tribology Transactions. 51:543-551
ISSN:	1547-397X 1040-2004
DOI:	10.1080/10402000801888911
Popis:	Acoustic emissions (AE) technique was applied to rolling contact fatigue tests of two radially loaded rollers running under constant load and velocity to detect the incipient damage and damage location. Signals detected from contacts were processed using signal conditioning and enhancement techniques by an AE source locator to bring out the difference between the signals from the sound and damaged rollers. It was found that AE hit count pulse observations by the AE source locator can provide an indication of the damage at its initial stage. The conventional AE parameters and the AE signal features were studied and correlated with the AE source locator counts. The results demonstrated the successful use of the combination of the AE monitoring and the AE source locator as a new technique for detecting the incipient damage and forecasting the position of the damage in the roller, and this technique could allow the user to monitor the rate of deterioration of the rolling elements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9f4840491ac051cc16b09a43d418b03a https://doi.org/10.1080/10402000801888911 Zobrazit plný text záznamu