Developing Acoustic Emission monitoring to assess lubricant performance

初步试验表明，监测滑动部件发出的高频弹性应力波有可能提供关于接触条件的信息，特别是关于添加剂薄膜行为的信息。本项目将研究单个粗糙面接触的噪声发射，以详细了解其产生机理。然后将测试一系列润滑剂和添加剂，以确定它们对噪音排放的影响。随后，将在实际发动机部件上进行试验，以证明声发射在实际应用中的有效性。

Initial tests have shown that monitoring high frequency elastic stress waves emitted from sliding components has the potential to provide information regarding the contact conditions and in particular additive film behaviour. This project will study noise emission from single asperity contacts to understand the generation mechanisms in detail. Then a range of lubricants and additives will be tested in order to characterise their effects on noise emission. Following this, tests will be carried on actual engine components to prove AE's effectiveness in practical applications.