An Experiment Study of Acoustic Emission Generated by Dynamic Fluid Asperity Shearing

Jiaojiao Ma, Zhanqun Shi, Hao Zhang, Fengshou Gu, Andrew D. Ball

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The dynamic responses of hydrodynamically lubricated surfaces have attracted many researchers for the sake of improving both the lubrication performances and online lubrication monitoring. To gain insightful understandings of dynamic interactions in a fluid lubricated joint that are the fundamentals of many key mechanical components such as bearings and seals in the engine, a series of engine lubricants were tested in a cone-plate rheometer and the corresponding acoustic emission (AE) signals are acquired to monitor the dynamic interactions of tribofilm shearing with surface asperities. The observations show that the AE measurements are sensitive to the change of lubrication conditions, specifically shearing rates. A greater shear rate can excite a wider frequency bandwidth and stronger AE signals. This AE response with respect to the engine lubricants samples can be explained by the dynamic fluid-asperity shearing model. These findings provide important guidelines for analysing the online measured AE signals from complex machines.

Original languageEnglish
Title of host publicationProceedings of IncoME-V & CEPE Net-2020
Subtitle of host publicationCondition Monitoring, Plant Maintenance and Reliability
EditorsDong Zhen, Dong Wang, Tianyang Wang, Hongjun Wang, Baoshan Huang, Jyoti K. Sinha, Andrew David Ball
Place of PublicationCham
PublisherSpringer Nature Switzerland AG
Pages14-22
Number of pages9
Volume105
Edition1st
ISBN (Electronic)9783030757939
ISBN (Print)9783030757922
DOIs
Publication statusPublished - 16 May 2021
Event5th International Conference on Maintenance Engineering and the 2020 Annual Conference of the Centre for Efficiency and Performance Engineering Network - Zhuhai, China
Duration: 23 Oct 202025 Oct 2020
Conference number: 5
https://link.springer.com/book/10.1007/978-3-030-75793-9#about

Publication series

NameMechanisms and Machine Science
Volume105
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference5th International Conference on Maintenance Engineering and the 2020 Annual Conference of the Centre for Efficiency and Performance Engineering Network
Abbreviated titleIncoME-V and CEPE Net-2020
CountryChina
CityZhuhai
Period23/10/2025/10/20
Internet address

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