Show simple item record

dc.contributor.authorSandoval Núñez, Diego Aníbal
dc.contributor.authorLeturiondo, Urko
dc.contributor.authorVidal Seguí, Yolanda
dc.contributor.authorPozo Montero, Francesc
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Sísmica i Dinàmica Estructural
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtiques
dc.date.accessioned2021-02-04T07:22:41Z
dc.date.available2021-02-04T07:22:41Z
dc.date.issued2021-02-01
dc.identifier.citationSandoval, D. [et al.]. Entropy indicators: an approach for low-speed bearing diagnosis. "Sensors", 1 Febrer 2021, vol. 21, núm. 3, p. 849:1-849:33.
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/2117/336845
dc.description.abstractTo increase the competitiveness of wind energy, the maintenance costs of offshore floating and fixed wind turbines need to be reduced. One strategy is the enhancement of the condition monitoring techniques for pitch bearings, because their low operational speed and the high loads applied to them make their monitoring challenging. Vibration analysis has been widely used for monitoring the bearing condition with good results obtained for regular bearings, but with difficulties when the operational speed decreases. Therefore, new techniques are required to enhance the capabilities of vibration analysis for bearings under such operational conditions. This study proposes the use of indicators based on entropy for monitoring a low-speed bearing condition. The indicators used are approximate, dispersion, singular value decomposition, and spectral entropy of the permutation entropy. This approach has been tested with vibration signals acquired in a test rig with bearings under different health conditions. The results show that entropy indicators (EIs) can discriminate with higher-accuracy damaged bearings for low-speed bearings compared with the regular indicators. Furthermore, it is shown that the combination of regular and entropy-based indicators can also contribute to a more reliable diagnosis.
dc.description.sponsorshipThis study was partially funded by the Spanish Agencia Estatal de Investigación (AEI)—Ministerio de Economía, Industria y Competitividad (MINECO), the Fondo Europeo de Desarrollo Regional (FEDER) through the research projects DPI2017-82930-C2-1-R and DPI2017-82930-C2-2-R, and by the Generalitat de Catalunya through the research project 2017 SGR 388.
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject.lcshStatistical mechanics
dc.subject.lcshVibration
dc.subject.otherpitch bearing
dc.subject.othercondition monitoring
dc.subject.otherentropy
dc.subject.otherlow-speed bearings
dc.subject.othervibration
dc.titleEntropy indicators: an approach for low-speed bearing diagnosis
dc.typeArticle
dc.subject.lemacMecànica estadística
dc.subject.lemacVibració
dc.contributor.groupUniversitat Politècnica de Catalunya. CoDAlab - Control, Modelització, Identificació i Aplicacions
dc.identifier.doi10.3390/s21030849
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::82 Statistical mechanics, structure of matter::82B Equilibrium statistical mechanics
dc.subject.amsClassificació AMS::70 Mechanics of particles and systems::70J Linear vibration theory
dc.relation.publisherversionhttps://www.mdpi.com/1424-8220/21/3/849
dc.rights.accessOpen Access
local.identifier.drac30423803
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/DPI2017-82930-C2-1-R/ES/DESARROLLO Y VALIDACION DE SISTEMAS DE MONITORIZACION INTELIGENTE, ESTRATEGIAS DE CONTROL DEL PITCH Y DE AMORTIGUACION ESTRUCTURAL PARA AEROGENERADORES OFFSHORE FLOTANTES/
local.citation.authorSandoval, D.; Leturiondo, U.; Vidal, Y.; Pozo, F.
local.citation.publicationNameSensors
local.citation.volume21
local.citation.number3
local.citation.startingPage849:1
local.citation.endingPage849:33


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record