Study of the capability of detection of structural abnormality in rotating machines with SSA

The detection of the presence of a structural abnormality in rotating machines with parts without gap, such as rigid couplings, by using the conventional method of vibration RMS, is difficult. This work investigates the application of Singular Spectral Analysis (SSA) to change detection in rotating...

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Autores principales:	Manabu TSUNOKAI, Jeremy KNOPP, Kazuyuki DEMACHI, Stéphane PERRIN, Ryo KAYATA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	change detection structural abnormalities singular spectral analysis (ssa) signal processing condition monitoring rotating machine Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/eeb5bbb5c2d44c45af66a482bb780db1
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id	oai:doaj.org-article:eeb5bbb5c2d44c45af66a482bb780db1
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spelling	oai:doaj.org-article:eeb5bbb5c2d44c45af66a482bb780db12021-11-26T06:35:12ZStudy of the capability of detection of structural abnormality in rotating machines with SSA2187-974510.1299/mej.15-00317https://doaj.org/article/eeb5bbb5c2d44c45af66a482bb780db12016-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/1/3_15-00317/_pdf/-char/enhttps://doaj.org/toc/2187-9745The detection of the presence of a structural abnormality in rotating machines with parts without gap, such as rigid couplings, by using the conventional method of vibration RMS, is difficult. This work investigates the application of Singular Spectral Analysis (SSA) to change detection in rotating machines. The performance of this technique is quantitatively evaluated in the scenario of misalignment in a turbopump assembly with rigid coupling. It is shown that a statistically significant change appears when using the Change Score calculated using the SSA method. Comparison with special indicators of a structural abnormality is also performed. Since the SSA detects changes in the shape of the signal, it is much more sensitive to changes related to abnormality than conventional methods or the use of special indicators.Manabu TSUNOKAIJeremy KNOPPKazuyuki DEMACHIStéphane PERRINRyo KAYATAThe Japan Society of Mechanical Engineersarticlechange detectionstructural abnormalitiessingular spectral analysis (ssa)signal processingcondition monitoringrotating machineMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 1, Pp 15-00317-15-00317 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	change detection structural abnormalities singular spectral analysis (ssa) signal processing condition monitoring rotating machine Mechanical engineering and machinery TJ1-1570
spellingShingle	change detection structural abnormalities singular spectral analysis (ssa) signal processing condition monitoring rotating machine Mechanical engineering and machinery TJ1-1570 Manabu TSUNOKAI Jeremy KNOPP Kazuyuki DEMACHI Stéphane PERRIN Ryo KAYATA Study of the capability of detection of structural abnormality in rotating machines with SSA
description	The detection of the presence of a structural abnormality in rotating machines with parts without gap, such as rigid couplings, by using the conventional method of vibration RMS, is difficult. This work investigates the application of Singular Spectral Analysis (SSA) to change detection in rotating machines. The performance of this technique is quantitatively evaluated in the scenario of misalignment in a turbopump assembly with rigid coupling. It is shown that a statistically significant change appears when using the Change Score calculated using the SSA method. Comparison with special indicators of a structural abnormality is also performed. Since the SSA detects changes in the shape of the signal, it is much more sensitive to changes related to abnormality than conventional methods or the use of special indicators.
format	article
author	Manabu TSUNOKAI Jeremy KNOPP Kazuyuki DEMACHI Stéphane PERRIN Ryo KAYATA
author_facet	Manabu TSUNOKAI Jeremy KNOPP Kazuyuki DEMACHI Stéphane PERRIN Ryo KAYATA
author_sort	Manabu TSUNOKAI
title	Study of the capability of detection of structural abnormality in rotating machines with SSA
title_short	Study of the capability of detection of structural abnormality in rotating machines with SSA
title_full	Study of the capability of detection of structural abnormality in rotating machines with SSA
title_fullStr	Study of the capability of detection of structural abnormality in rotating machines with SSA
title_full_unstemmed	Study of the capability of detection of structural abnormality in rotating machines with SSA
title_sort	study of the capability of detection of structural abnormality in rotating machines with ssa
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/eeb5bbb5c2d44c45af66a482bb780db1
work_keys_str_mv	AT manabutsunokai studyofthecapabilityofdetectionofstructuralabnormalityinrotatingmachineswithssa AT jeremyknopp studyofthecapabilityofdetectionofstructuralabnormalityinrotatingmachineswithssa AT kazuyukidemachi studyofthecapabilityofdetectionofstructuralabnormalityinrotatingmachineswithssa AT stephaneperrin studyofthecapabilityofdetectionofstructuralabnormalityinrotatingmachineswithssa AT ryokayata studyofthecapabilityofdetectionofstructuralabnormalityinrotatingmachineswithssa
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Study of the capability of detection of structural abnormality in rotating machines with SSA

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