期刊
TRIBOLOGY INTERNATIONAL
卷 42, 期 6, 页码 807-815出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2008.10.014
关键词
Rolling element; Acoustic emissions; AE source locator; Incipient damage diagnosis; Condition monitoring
The acoustic emission (AE) technique was applied to rolling contact fatigue tests using a test-rig running under constant load and speed for detecting the incipient damage and damage location. This incipiently-damaged roller was investigated in detail and monitored by further running to determine the damage severity and to understand the Surface damage propagation process by applying the AE techniques. The conventional AE parameters and AE signal features were Studied, and their relation with the AE source locator hit count rate were correlated. The results demonstrated the successful use of the AE measurement unit, which is principally, consists of the AE data analyzer and the AE source locator as a new system for detecting incipient damage produced by fatigue. Moreover, the system is able to forecast the position of the damage in the roller, capable of providing an indication of the severity of damage i.e. damage size, and thus it could allow the user to monitor the rate of further degradation of the rolling elements. (c) 2008 Elsevier Ltd. All rights reserved.
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