Abstract Acoustic emission (AE) has been successfully used to investigate the damage mechanisms of fretting contacts within different regimes. This study investigated the transition between fretting regimes using the relationship between AE and the mechanical response of a dry, steel-on-steel, ball-on-flat contact under different tangential displacements achieving the partial slip regime, mixed fretting regime and gross slip regime. Increased AE response occurred during gross-slip events and there was strong positive correlation between AE and fretting energy ratio. The relationship was strongest when gross sliding was experienced allowing identification of transition from the partial slip to the gross slip regime. This makes AE a good candidate to detect regime transition in-situ due to ease of integration and its non-destructive nature.

中文翻译：

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使用声发射的实时微动环路状态转换识别

摘要 声发射 (AE) 已成功用于研究不同状态下微动接触的损坏机制。本研究利用 AE 与不同切向位移下干式钢对钢、球对平面接触的机械响应之间的关系来研究微动状态之间的转变，实现部分滑动状态、混合微动状态和总滑动状态. AE 响应增加发生在粗滑事件期间，并且 AE 与微动能量比之间存在很强的正相关。当经历总滑动时，这种关系是最强的，允许识别从部分滑动到总滑动状态的过渡。由于易于集成且具有非破坏性，这使得 AE 成为原位检测状态转变的良好候选者。