Abstract

We study the joint dynamics of changes in the parameters of acoustic emission (AE) and in the friction coefficient during TRB friction machine testing of flat steel 12Kh2N4ASh specimens, including those with Ti + Al + N ion-plasma vacuum sputtering. The results of studying the shape of the curve of the reconstructed values of AE-event stream intensity in different parts of the experimental curves of the dependence of friction coefficient on test time are presented. A significant correlation was discovered between the friction coefficient and the reconstructed AE-event stream intensity. Methods are proposed for evaluating the friction coefficient and the time of the run-in stage end based on the reconstructed AE-event stream.

中文翻译：

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确定磨合阶段的摩擦系数，并基于声发射信号诊断向稳态阶段的过渡点

摘要

我们研究了在12Kh2N4ASh扁钢试样的TRB摩擦试验中，声发射（AE）参数和摩擦系数变化的联合动力学，包括使用Ti + Al + N离子等离子体真空溅射的试样。给出了研究摩擦系数对测试时间的依赖关系的实验曲线不同部分中AE事件流强度重构值的曲线形状的研究结果。发现摩擦系数与重建的AE事件流强度之间存在显着相关性。提出了一种基于重构的AE事件流评估磨合阶段结束的摩擦系数和时间的方法。