Modelling acoustic emissions generated by tribological behaviour of mechanical seals for condition monitoring and fault detection. (September 2018)

• Record Type: Journal Article
• Authors: Towsyfyan, Hossein; Gu, Fengshou; Ball, Andrew D.; Liang, Bo
• Is Part Of: Tribology international. Volume 125(2018)
• Page Start: 46
• Page End: 58
• Publication Date: 2018-09
• Subjects: Tribological regimes -- Mechanical seals -- Acoustic emission; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2018.04.021
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Acoustic emission (AE) signals are useful for the condition monitoring of mechanical seals as tribological regimes affect the AE signatures. In this paper the investigation develops a mathematical model that can predict the energy of an AE signal under different tribological regimes. The developed model has been validated with experimental studies and satisfactory results have been perceived. Therefore, the model has strong potential to be used to obtain tribological behaviour of mechanical seals and hence develop a reliable and accurate condition monitoring system under varying operating conditions. Highlights: The paper developed a comprehensive model of the AE energy discharge under different tribological regimes of mechanical seals. To derive a comprehensive model that can explain the tribological behaviour of mechanical seals, the proposed equations for AE source mechanisms have been combined. Any deviation from the predicted trends can be considered as a developing fault that may lead to failure of mechanical seals. Some radial scratches were made on the mating ring to simulate leakage in the hydrodynamic lubrication regime. A significant difference has seen observed between the measured and predicted signals.