Modelling acoustic emissions generated by sliding friction

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Acoustic emission analysis is an effective diagnostic method in modern tribo-monitoring. Many experimental studies have been conducted to investigate the relationship between AE parameters and wear and friction. This paper develops a theoretical model to correlate acoustic emissions to sliding friction based on elastic asperity contact of materials. It is found that sliding speed, load supported by asperities, the number of asperity contact and surface topographic characteristics influence the energy of AE signal. With the help of this model it is possible to estimate the contact load supported by asperities from AE measurement, which is a critical parameter to evaluate lubrication conditions in engineering applications. The establishment of this model will provide a theoretical basis for future studies on the motioning and prognostics of tribological process using AE technology.

Original languageEnglish
Pages (from-to)811-815
Number of pages5
JournalWear
Volume268
Issue number5-6
DOIs
Publication statusPublished - 11 Feb 2010

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sliding friction
acoustic emission
Acoustic emissions
Friction
contact loads
lubrication
Lubrication
sliding
friction
Wear of materials
engineering
Monitoring
estimates
energy

Cite this

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title = "Modelling acoustic emissions generated by sliding friction",
abstract = "Acoustic emission analysis is an effective diagnostic method in modern tribo-monitoring. Many experimental studies have been conducted to investigate the relationship between AE parameters and wear and friction. This paper develops a theoretical model to correlate acoustic emissions to sliding friction based on elastic asperity contact of materials. It is found that sliding speed, load supported by asperities, the number of asperity contact and surface topographic characteristics influence the energy of AE signal. With the help of this model it is possible to estimate the contact load supported by asperities from AE measurement, which is a critical parameter to evaluate lubrication conditions in engineering applications. The establishment of this model will provide a theoretical basis for future studies on the motioning and prognostics of tribological process using AE technology.",
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Modelling acoustic emissions generated by sliding friction. / Fan, Yibo; Gu, Fengshou; Ball, Andrew.

In: Wear, Vol. 268, No. 5-6, 11.02.2010, p. 811-815.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Modelling acoustic emissions generated by sliding friction

AU - Fan, Yibo

AU - Gu, Fengshou

AU - Ball, Andrew

PY - 2010/2/11

Y1 - 2010/2/11

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AB - Acoustic emission analysis is an effective diagnostic method in modern tribo-monitoring. Many experimental studies have been conducted to investigate the relationship between AE parameters and wear and friction. This paper develops a theoretical model to correlate acoustic emissions to sliding friction based on elastic asperity contact of materials. It is found that sliding speed, load supported by asperities, the number of asperity contact and surface topographic characteristics influence the energy of AE signal. With the help of this model it is possible to estimate the contact load supported by asperities from AE measurement, which is a critical parameter to evaluate lubrication conditions in engineering applications. The establishment of this model will provide a theoretical basis for future studies on the motioning and prognostics of tribological process using AE technology.

KW - Acoustic emission

KW - Elastic asperity contact

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