Analysis of Transient Changes in Friction Coefficient with Wavelet Transform

This paper describes time-frequency analysis of the friction coefficient with discrete wavelet transform. Ball-on-disk experiments were conducted with a steel ball, an aluminum disk and ethanol as a lubricant. The coefficient of friction was rather stable and low during initial sliding before it sud...

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Autores principales:	Ayako Nakahara, Takehiro Morita, Naoshi Izumi, Joichi Sugimura
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2008
Materias:	friction lubrication seizure wavelet transform haar function Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1ee46ea67831432891e71f2368ab0c26
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id	oai:doaj.org-article:1ee46ea67831432891e71f2368ab0c26
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spelling	oai:doaj.org-article:1ee46ea67831432891e71f2368ab0c262021-11-05T09:29:08ZAnalysis of Transient Changes in Friction Coefficient with Wavelet Transform1881-219810.2474/trol.3.181https://doaj.org/article/1ee46ea67831432891e71f2368ab0c262008-05-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/3/3/3_3_181/_pdf/-char/enhttps://doaj.org/toc/1881-2198This paper describes time-frequency analysis of the friction coefficient with discrete wavelet transform. Ball-on-disk experiments were conducted with a steel ball, an aluminum disk and ethanol as a lubricant. The coefficient of friction was rather stable and low during initial sliding before it suddenly increased by seizure caused by loss of the lubricant. While no indication of transient change could be found before the seizure occurred in the original friction and ball displacement signals, the wavelet components of the friction coefficient clearly showed the local disturbances during several cycles before the sudden increase. The results suggest that the wavelet transform is potentially applicable to the prediction of catastrophic changes in friction.Ayako NakaharaTakehiro MoritaNaoshi IzumiJoichi SugimuraJapanese Society of Tribologistsarticlefrictionlubricationseizurewavelet transformhaar functionPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 3, Iss 3, Pp 181-184 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	friction lubrication seizure wavelet transform haar function Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	friction lubrication seizure wavelet transform haar function Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Ayako Nakahara Takehiro Morita Naoshi Izumi Joichi Sugimura Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
description	This paper describes time-frequency analysis of the friction coefficient with discrete wavelet transform. Ball-on-disk experiments were conducted with a steel ball, an aluminum disk and ethanol as a lubricant. The coefficient of friction was rather stable and low during initial sliding before it suddenly increased by seizure caused by loss of the lubricant. While no indication of transient change could be found before the seizure occurred in the original friction and ball displacement signals, the wavelet components of the friction coefficient clearly showed the local disturbances during several cycles before the sudden increase. The results suggest that the wavelet transform is potentially applicable to the prediction of catastrophic changes in friction.
format	article
author	Ayako Nakahara Takehiro Morita Naoshi Izumi Joichi Sugimura
author_facet	Ayako Nakahara Takehiro Morita Naoshi Izumi Joichi Sugimura
author_sort	Ayako Nakahara
title	Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
title_short	Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
title_full	Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
title_fullStr	Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
title_full_unstemmed	Analysis of Transient Changes in Friction Coefficient with Wavelet Transform
title_sort	analysis of transient changes in friction coefficient with wavelet transform
publisher	Japanese Society of Tribologists
publishDate	2008
url	https://doaj.org/article/1ee46ea67831432891e71f2368ab0c26
work_keys_str_mv	AT ayakonakahara analysisoftransientchangesinfrictioncoefficientwithwavelettransform AT takehiromorita analysisoftransientchangesinfrictioncoefficientwithwavelettransform AT naoshiizumi analysisoftransientchangesinfrictioncoefficientwithwavelettransform AT joichisugimura analysisoftransientchangesinfrictioncoefficientwithwavelettransform
_version_	1718444335401271296

Analysis of Transient Changes in Friction Coefficient with Wavelet Transform

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